Ryobi Trimmer 2075r User Guide

MODEL 2075r  
GAS TRIMMER  
OPERATOR’S MANUAL  
FOR QUESTIONS, CALL 1-800-345-8746 in U.S.  
or 1-800-265-6778 in CANADA  
IMPORTANT MANUAL  
DO NOT THROW AWAY  
 
SPARK ARRESTOR  
NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington.  
All U.S. Forest Land and the state of California (Public Resources Codes 4442 and 4443), Oregon and  
Washington require, by law that certain internal combustion engines operated on forest brush and/or grass-  
covered areas be equipped with a spark arrestor, maintained in effective working order, or the engine be  
constructed, equipped and maintained for the prevention of fire. Check with your state or local authorities for  
regulations pertaining to these requirements. Failure to follow these requirements could subject you to liability  
or a fine. This unit is not factory equipped with a spark arrestor. If these items are required in your area,  
ask your LOCAL SERVICE dealer to install the Optional Accessory Part #181696 Spark Arrestor Kit.  
FOR QUESTIONS, CALL 1-800-345-8746 IN U.S. OR 1-800-265-6778 in CANADA  
CALIFORNIA EMISSION REGULATIONS  
The engine of your lawn and garden care product meets the 1995 to 1998 California emissions  
regulations. These units are identified by the label on the engine of your product. A typical  
identification label is shown.  
To ensure that your unit continues to meet these regulations, refer to the following information and  
instructions in this operators manual.  
California Proposition 65 Warning:  
WARNING  
THE ENGINE EXHAUST FROM THIS  
PRODUCT CONTAINS CHEMICALS  
KNOWN TO THE STATE OF CALIFORNIA  
TO CAUSE CANCER, BIRTH DEFECTS  
OR OTHER REPRODUCTIVE HARM.  
SAFETY WARNINGS  
THE PURPOSE OF SAFETY SYMBOLS IS  
TO ATTRACT YOUR ATTENTION TO  
POSSIBLE DANGERS. THE SAFETY  
SYMBOLS, AND THE EXPLANATIONS  
WITH THEM, DESERVE YOUR CAREFUL  
ATTENTION AND UNDERSTANDING. THE  
SAFETY WARNINGS DO NOT BY  
DANGER: Failure to obey a safety  
warning will result in serious injury to  
yourself or to others. Always follow  
the safety precautions to reduce the  
risk of fire, electric shock, and  
personal injury.  
THEMSELVES ELIMINATE ANY DANGER.  
THE INSTRUCTIONS OR WARNINGS THEY  
GIVE ARE NOT SUBSTITUTES FOR PROPER  
ACCIDENT PREVENTION MEASURES.  
WARNING: Failure to obey a safety  
warning can result in injury to yourself  
and others.  
CAUTION: Failure to obey a safety  
warning may result in property damage  
or personal injury to yourself or to  
others. Always follow the safety  
precautions to reduce the risk of fire,  
electric shock, and personal injury.  
SYMBOL  
MEANING  
SAFETY ALERT SYMBOL: Indicates  
danger, warning, or caution. Special  
attention is required in order to avoid  
serious personal injury. May be used  
in conjunction with other symbols or  
pictographs.  
NOTE: Advises you of information or  
instructions vital to the operation  
or maintenance of the equipment.  
3
 
SAFETY WARNINGS  
IMPORTANT SAFETY INFORMATION •  
WHILE OPERATING  
READ ALL INSTRUCTIONS  
Wear safety glasses or goggles and  
ear/hearing protection at all times when  
operating this unit. Always wear a face  
or dust mask if the operation is dusty.  
BEFORE OPERATING  
Read the instructions carefully. Be familiar  
with the controls and proper use of the unit.  
Children and adolescents must not  
manipulate units, except for adolescents  
in training and under the supervision of  
a specialist.  
Dress properly. Do not operate this unit  
when barefoot or wearing open sandals.  
Always wear sturdy, rubber-soled footwear.  
The use of gloves and long pants are  
recommended.  
All guards and safety attachments must be  
installed properly before operating the unit.  
Do not wear loose fitting clothing or articles  
such as scarves, strings, chains, ties, etc.  
because they could get drawn into the air  
intake. Also make sure long hair does not  
get drawn into the air intake. Long hair must  
be pulled back and secured off shoulders  
and neck.  
Thoroughly inspect the unit for loose or  
damaged parts before each use. Do not  
use until adjustments or repairs are made.  
Carefully inspect the areas to be cut. Remove  
all debris that could become entangled in the  
string or blade. Also remove any objects that  
could be thrown during cutting.  
The string guard must be in place at all times  
while operating the unit.  
Be aware of the risk of injury to the head,  
hands and feet.  
Before each use, check that the cutting  
head is correctly fixed, that the trigger  
returns automatically in neutral position,  
and that the cutting head remains  
SAFETY WARNINGS FOR GAS  
TRIMMERS  
stationary when the engine is idling.  
WARNING: Gasoline is highly flammable and  
its vapors can explode if ignited. Take the  
following precautions:  
Before starting, adjust the handle to your size  
and make sure that the cutting head is not in  
contact with anything.  
1) Store fuel only in containers specifically  
designed and approved for the storage  
of such materials.  
Use the unit only in daylight or good  
artificial light.  
Operate this unit only in a well-ventilated  
area outdoors. Carbon monoxide exhaust  
fumes can be lethal in a confined area.  
2) Always stop the engine and allow it to  
cool before filling the fuel tank. Never  
remove the cap of the fuel tank, or add  
fuel, when the engine is hot.  
Avoid accidental starting. Be in the starting  
position whenever pulling the starting rope.  
The operator and unit must be in a stable  
position while starting.  
3) Pressure can build up in the fuel tank.  
Loosen the fuel tank cap slowly to relieve  
any pressure in the tank.  
Use the right tool. Do not use this unit for  
any job except for which it is intended.  
4) Add fuel in a clean, well-ventilated area.  
Wipe up any spilled fuel immediately. If  
fuel has been spilled, avoid creating a  
source of ignition or starting the engine  
until fuel vapors have dissipated.  
Do not overreach. Keep proper footing and  
balance at all times.  
Always hold the unit with both hands when  
operating. Keep a firm grip on both the  
front and rear handles or grips.  
5) Ensure correct fuel or fuel/oil mixture is  
used. Never operate the unit without the  
fuel cap securely in place.  
Keep hands, face, and feet away from all  
moving parts. Do not attempt to touch or  
stop the cutting head when it is rotating.  
6) Move the unit at least 10 feet (3 m)  
from the fueling point before starting the  
engine. Do not smoke, keep sparks and  
open flames away from the area while  
adding fuel or operating the unit.  
Do not touch the muffler or cylinder.  
These parts get extremely hot from  
operation and remain hot for a short  
time after the equipment is turned off.  
4
 
SAFETY WARNINGS  
Keep all bystanders, especially children  
Use only genuine replacement parts when  
and pets, at least 30 feet (9.1 m) away  
from the unit during operation.  
servicing this unit. These parts are available  
from your authorized dealer. The use of  
non-standard parts, or other accessories  
or attachments not designed for this unit,  
could result in serious injury to the user or  
damage to the unit and void your warranty.  
Do not operate the engine faster than the  
speed necessary to cut, trim or edge.  
Do not run the engine at high speed  
when not cutting.  
Keep unit clean of vegetation and other  
materials. They may become lodged between  
the cutting head and guard mount.  
Always stop the engine when cutting is  
delayed or when walking from one cutting  
location to another.  
To reduce fire hazard, replace faulty mufflers  
and spark arrestors, keep the engine and  
muffler free of grass, leaves, excessive  
grease or carbon buildup.  
Do not operate unit without both trimming  
lines extended, and the proper line installed.  
Do not extend the trimming line beyond  
the length of the guard as specified in  
this manual.  
OTHER SAFETY WARNINGS  
If you strike or become entangled with a  
foreign object, stop the engine immediately  
and check for damage. Repair any damage  
before further operation is attempted. Do  
not operate the unit with loose or damaged  
parts.  
Never store the unit, with fuel in the tank,  
inside a building where fumes may reach  
an open flame or spark.  
Allow the engine to cool before storing  
in an enclosure.  
Lock up and store the unit in an appropriate  
and dry location to prevent unauthorized  
use and damage.  
Frequently inspect the condition of the  
cutting head. All damaged parts must be  
replaced immediately. Follow all the required  
precautions when undertaking replacement.  
Keep these instructions. Refer to them  
frequently and use them to instruct other  
users. If you loan someone this unit, also  
loan them these instructions.  
All interventions, whether for maintenance,  
repair or for changing cutting head or safety  
attachments, must be undertaken with the  
engine/motor stopped.  
SAVE THESE INSTRUCTIONS  
SAFETY AND INTERNATIONAL SYMBOLS  
This operator's manual describes safety and international symbols and pictographs that may  
appear on this product. Read the operator's manual for complete safety, assembly, operating  
and maintenance and repair information.  
SYMBOL  
MEANING  
SAFETY ALERT SYMBOL  
Indicates danger, warning, or caution. May be used in  
conjunction with other symbols or pictographs.  
READ OPERATOR'S MANUAL  
Failure to follow operating instructions and safety precautions  
in operator's manual can result in serious injury. Read  
operator's manual before starting or operating this unit.  
FOR SERVICE INFORMATION, CALL:  
USA: 1-800-345-8746  
CANADA: 1-800-265-6778  
WEAR EYE AND HEARING PROTECTION  
WARNING: Thrown objects and loud noise can cause severe  
eye injury and hearing loss. Wear eye and ear protection when  
operating this unit.  
5
 
SAFETY WARNINGS  
SYMBOL  
MEANING  
KEEP BYSTANDERS AWAY  
WARNING: Keep all bystanders, especially children and pets,  
at least 30 feet (9.1 m) away from the trimming area.  
PRIMER BULB  
Push primer bulb, fully and slowly, 5 to 7 times.  
UNLEADED FUEL  
Always use clean, fresh unleaded fuel.  
INDICATES OIL  
Refer to operator's manual for the proper type of oil.  
CHOKE CONTROL  
STARTposition (A).  
RUNposition (B).  
THROWN OBJECTS AND ROTATING CUTTER CAN  
CAUSE SEVERE INJURY  
WARNING: Do not operate unit as a trimmer without string  
guard in place. Keep away from rotating cutter.  
IGNITION SWITCH  
ON / START / RUN  
IGNITION SWITCH  
OFF or STOP  
HOT SURFACE WARNING  
Do not touch a hot muffler, gear box or cylinder. You may get  
burned. These parts get extremely hot from operation and  
remain hot for a short time after the unit is turned off.  
ROTATING CUTTER CAN CAUSE SEVERE INJURY  
WARNING: Stop engine/motor and disconnect lower  
drive shaft from unit prior to making adjustments, removing,  
or cleaning.  
6
 
ASSEMBLY INSTRUCTIONS  
INSTALLING AND ADJUSTING THE  
LOOP HANDLE  
If the loop handle is not assembled on this  
model, use the following instructions:  
1. Place the loop handle and bottom handle  
clamp on the boom shaft (Fig. 1).  
2. Install, one at a time, the four (4) screws and  
String  
Guard  
four (4) hex nuts with a Phillips screwdriver.  
NOTE: Install all four (4) screws before you  
tighten any of them.  
Guard  
Mount  
3. Adjust the loop handle to the desired  
position.  
Fig. 2  
4. Tighten the clamp screws securely.  
2. Place the three hex nuts into the recessed  
holes on top of the guard (Fig. 3).  
4 Screws  
Loop  
Handle  
Hex Nuts  
Bottom  
4 Nuts  
Clamp  
Handle  
Top of  
Hex  
Nut  
Fig. 1  
INSTALLING THE STRING GUARD  
If the string guard is not assembled on this  
model, use the following instructions:  
Fig. 3  
3. Install the screws into the holes from the  
bottom of the guard (Fig. 4).  
WARNING: To avoid serious personal  
injury, the string guard must in place  
while operating this unit.  
1. Slide the string guard onto the guard mount  
above the string head assembly. Align the  
screw holes in the string guard with the  
screw holes in the string assembly (Fig. 2).  
Screws  
Fig. 4  
7
 
OIL AND FUEL INFORMATION  
Old or improperly mixed fuel are usually  
USE OF FUEL ADDITIVES  
the main reasons for the unit not running  
properly. Be sure to use fresh, clean fuel and  
follow the instructions carefully for the proper  
fuel/oil mixture.  
The use of fuel additive, such as STA-BIL®  
Gas Stabilizer or an equivalent, will inhibit  
corrosion and minimize the formation of gum  
deposits. Add 0.8 oz (23 ml) per gallon of fuel  
per instructions on container. NEVER add fuel  
additives directly to the unit's fuel tank. Using  
a fuel additive can keep fuel fresh for up to six  
(6) months.  
NOTE: Alcohol-blended fuel absorbs moisture  
(water). As little as 1% moisture in the  
fuel can cause fuel and oil to separate  
and form acids when stored. If this  
type of fuel must be used, use fresh  
fuel (less than 60 days old), and mix  
according to the mixing instructions.  
CAUTION: For proper engine  
operation and maximum reliability,  
pay strict attention to the oil and  
fuel mixing instructions on the  
2-cycle oil container. Use a 32:1  
fuel/oil ratio. Use 2-cycle oil. Using  
improperly mixed fuel can severely  
damage the engine.  
DEFINITION OF BLENDED FUELS  
Today's fuels are often a blend of gasoline  
and one or more oxygenates such as ethanol,  
methanol or MTBE (ether).  
OIL AND FUEL MIXING INSTRUCTIONS  
Thoroughly mix the proper ratio of 2-cycle  
engine oil with unleaded gasoline in a  
separate fuel can, 32:1. Do not mix them  
directly in the engine fuel tank. See the table  
below for specific gas and oil mixing ratios.  
USE OF BLENDED FUELS  
If you choose to use a blended fuel or its use  
is unavoidable, the following precautions are  
recommended.  
1. Always use fresh fuel mix per your  
operator's manual.  
2. Use the special additive STA-BIL® or  
an equivalent.  
+
3. Always agitate the fuel mix before fueling  
the unit.  
4. Drain the tank and run the engine dry  
before storing the unit.  
UNLEADED  
GAS  
RYOBI OIL  
1 U.S. GALLON  
(3.8 liters)  
4.0 fl. oz.  
(118 ml)  
WARNING: Gasoline is extremely  
flammable and its vapors can  
explode if they are ignited. To avoid  
serious personal injury, always stop  
the engine and allow it to cool  
before filling the fuel tank. Do not  
smoke while filling the tank. Keep  
sparks and open flames away from  
the area.  
+
+
1 LITER  
30 ml  
MIXING RATIO - 32:1  
WARNING: Pressure can build up  
in the fuel tank. Loosen the fuel  
tank cap slowly to relieve any  
pressure in the tank.  
8
 
OPERATING INSTRUCTIONS  
10.To stop the engine, put the IGNITION SWITCH  
STARTING/STOPPING  
IN THE "OFF" POSITION (Fig. 5).  
WARNING: Operate this unit only  
in a well-ventilated area outdoors.  
Carbon monoxide exhaust fumes  
can be lethal in a confined area.  
WARNING: Avoid accidental starting.  
Be in the starting position whenever  
pulling the starting rope. To avoid  
serious personal injury, the operator  
and unit must be in a stable position  
while starting.  
Ignition  
Switch  
1. MIX OIL WITH GAS AND FILL FUEL TANK  
WITH FUEL/OIL MIXTURE per instructions  
on page 8.  
Fig. 5  
2. Put the IGNITION SWITCH IN THE ON”  
Choke  
Lever  
POSITION (Fig. 5).  
3. FULLY PRESS AND RELEASE THE PRIMER  
BULB 5 TO 7 TIMES. FUEL SHOULD BE  
VISIBLE IN THE BULB (Fig. 6).  
Start  
(A)  
Run  
(B)  
4. PLACE THE CHOKE LEVER IN THE  
STARTPOSITION (A) (Fig. 6).  
5. WITH THE UNIT ON THE GROUND,  
SQUEEZE THE THROTTLE TRIGGER  
FULLY AND PULL THE STARTER ROPE  
BRISKLY (Fig. 7) until the engine sounds like  
it wants to run (normally 2 to 5 pulls).  
Primer  
Bulb  
NOTE: Keep the throttle trigger depressed at all  
Fig. 6  
times until the engine is warmed up.  
6. PLACE THE CHOKE LEVER IN THE RUN”  
POSITION (B) (Fig. 6).  
7. PULL THE STARTER ROPE BRISKLY 1 TO  
3 TIMES TO START THE ENGINE (Fig. 7).  
8. If the engine does not start, repeat steps  
4 through 7.  
NOTE: If the engine floods while attempting to  
start the unit, place the choke lever in  
the RUNposition (B), squeeze the  
throttle trigger, and pull the starter rope  
briskly. The engine should start within  
three (3) to eight (8) pulls.  
9. Keep throttle trigger depressed for 5 to 10  
seconds to warm up engine.  
NOTE: Choking is not required when starting a  
warm engine. Start a warm engine in the  
RUNPOSITION.  
Fig. 7  
9
 
OPERATING INSTRUCTIONS  
2. BASIC TRIMMING OR USING OTHER  
OPERATING THE CLICK-LINK SYSTEM  
This unit is equipped with a Click-Link System,  
which enables optional attachments to be  
installed on the unit. The optional attachments  
are:  
RYOBI ATTACHMENTS - Locate and lock  
the release button into the primary hole in  
the Click-Link (Fig. 9).  
®
3. EDGING WITH THE TRIMMING HEAD  
ATTACHMENT - Locate and lock the  
release button into the 90˚ edging hole or  
180˚ edging hole in the Click-Link (Fig. 10).  
Blower/Vacuum. . . . . . . . . . . . . . . . . . . . . BV720r  
Cultivator . . . . . . . . . . . . . . . . . . . . . . . . . GC720r  
Edger . . . . . . . . . . . . . . . . . . . . . . . . . . . . LE720r  
Hedgetrimmer . . . . . . . . . . . . . . . . . . . . . HS720r  
Snowthrower. . . . . . . . . . . . . . . . . . . . . . . ST720r  
Straight Shaft Trimmer . . . . . . . . . . . . . . . SS725r  
Sweeper/Blower . . . . . . . . . . . . . . . . . . . . SB720r  
Tree Pruner . . . . . . . . . . . . . . . . . . . . . . . . TP720r  
Turbo Blower . . . . . . . . . . . . . . . . . . . . . . TB720r  
CAUTION: Make sure the release  
button is locked in the primary hole  
and knob is securely tightened  
before operating this unit.  
CAUTION: All attachments are  
designed to be used in the primary  
hole unless otherwise indicated in the  
attachments operators manual. If the  
incorrect hole is used, it could result  
in injury, or damage to the unit.  
WARNING: To avoid serious personal  
injury, shut off the unit prior to  
removing or installing any attachments.  
Removing the Lower (Attachment) Boom  
Click-Link  
Primary Hole  
NOTE: To make removing the boom easier,  
place the unit on the ground or on  
a table.  
1. Loosen the knob counterclockwise (Fig. 8).  
2. Press and hold the release button in (Fig. 8).  
Upper  
Boom  
Release  
Button  
Lower  
Boom  
3. While firmly holding the upper boom, pull the  
lower boom straight out of the Click-Link  
(Fig. 9).  
Fig. 9  
4. Tighten the knob securely clockwise before  
Release Button  
Click-Link  
using the unit (Fig. 10).  
90˚  
Edging  
Hole  
Guide  
Recess  
Knob  
Knob  
180˚  
Fig. 8  
If your unit is not assembled, or you  
Edging  
Washer  
Hole  
have more than one attachment, use  
the following instructions:  
Fig. 10  
Installing the Lower (Attachment) Boom  
1. Remove the hanger from the lower  
(attachment) boom. Hold the release button  
down while pushing the lower (attachment)  
boom into the Click-Link (Fig. 9).  
10  
 
OPERATING INSTRUCTIONS  
DECORATIVE TRIMMING  
ADJUSTING TRIMMING LINE LENGTH  
Decorative trimming is accomplished by  
removing all vegetation around trees, posts,  
fences, etc.  
Rotate the entire unit so that the cutting head  
is at a 30° angle to the ground (Fig. 12).  
Your unit is equipped with a cutting head that  
allows the operator to release more trimming  
line without stopping the engine. To release  
additional line, lightly tap the cutting head on  
the ground (Fig. 11) while operating the unit at  
high speed.  
NOTE: Always keep the trimming line fully  
extended. Line release becomes more  
difficult as cutting line becomes shorter.  
Fig. 12  
CAUTION: Do not remove or alter  
the line cutting blade assembly.  
Excessive line length will cause  
clutch to overheat and may result  
in serious personal injury.  
Fig. 11  
Each time the head is bumped, about 1 inch  
(25.4 mm) of trimming line is released. A blade  
in the string guard will cut the line to the proper  
length if excess line is released.  
EDGING  
For best results, tap the head on bare ground  
or hard soil. If line release is attempted in tall  
grass, the engine may stall.  
For edging with the trimming head attachment,  
locate and lock the release button into the 90°  
edging hole or 180° edging hole in the Click-  
Link system (Fig. 10).  
MAINTENANCE AND REPAIR INSTRUCTIONS  
MAINTENANCE SCHEDULE  
WARNING: Never perform maintenance  
or repairs with unit running. Always  
perform maintenance and repairs on a  
cool unit. Disconnect spark plug wire to  
make sure the unit will not start.  
These required maintenance procedures  
should be performed at the frequency stated  
in the table. They should also be included as  
part of any seasonal tune-up.  
FREQUENCY  
MAINTENANCE REQUIRED  
REFER TO:  
Daily or Before  
Starting Engine  
Fill fuel tank with correct oil and fuel mixture.  
Page 8  
Every 10 Hours  
Every 50 Hours  
Clean and re-oil air filter.  
Pages 14-15  
Page 16  
Check spark plug condition and gap.  
11  
 
MAINTENANCE AND REPAIR INSTRUCTIONS  
LINE INSTALLATION FOR THE  
SPEEDSPOOL®  
2. Insert 10 feet (2.5 m) of .080 in (2.03 mm)  
trimming line into one of the two eyelets  
and push it up through the line loading hole  
in the inner reel (Fig. 14). Do not bend the  
line when inserting it into the eyelet.  
The trimming line in the speed spool may be  
replaced by two different methods.  
Winding the existing inner reel with new line  
Installing a prewound inner reel  
Trimming Line  
Eyelet  
TO INSTALL NEW TRIMMING LINE, IT IS NOT  
NECESSARY TO REMOVE THE BUMP KNOB.  
The Correct Line to Use  
WARNING: Always use genuine  
Ryobi replacement line. Do not use  
metal-reinforced line.  
Line Loading Hole  
Fig. 14  
It is very important to use the correct size line.  
Use line with a diameter of 0.080 in (2.03 mm).  
The motor may overheat and fail if you use a  
larger line.  
3. Insert the line into the locking hole (Fig. 15)  
no more than 1/2 inch (12.7 mm). Do not  
push the line too far into the inner reel. A  
small loop is formed when the line is inserted  
correctly (Fig. 15).  
WINDING THE EXISTING INNER REEL WITH  
NEW LINE  
NOTE: Before installing new trimming line onto  
the existing inner reel, remove any old line  
from the SpeedSpool by pulling the line  
out of the line loading or locking holes  
(Figs. 14 and 15).  
1. Line up the arrow on the inner reel with the  
arrow on the outer spool (Fig. 13).  
WARNING: Always use the correct  
line length when installing trimming  
line on the unit. If longer line is used  
than specified in this manual, the line  
may not release properly.  
Locking Hole  
Fig. 15  
TOP VIEW OF THE SPEEDSPOOL  
4. Pull the line away from the spool until the line  
is tight against the inner reel (Fig. 16).  
Outer  
Spool  
Arrow  
Inner  
Reel  
Bump  
Knob  
Fig. 13  
Fig. 16  
NOTE: Do not wind the inner reel before the  
second line is installed into the reel.  
12  
 
MAINTENANCE AND REPAIR INSTRUCTIONS  
5. Repeat the procedure with the second eyelet  
and use the same amount of line as specified  
in Step 2.  
1. If you need to remove the Bump Knob to  
clean the spool or remove jammed, excess  
line, hold the outer spool, and unscrew the  
Bump Knob counterclockwise (Fig. 19).  
6. Wind the inner reel counterclockwise until  
approximately four (4) inches of line remains  
outside of the eyelets in the outer spool  
(Fig. 17).  
TO INSTALL NEW TRIMMING LINE, IT IS NOT  
NECESSARY TO REMOVE THE BUMP KNOB.  
Fig. 19  
Fig. 17  
2. Remove the Bump Knob, foam seal, spring,  
inner reel, and trimming line from the outer  
spool (Fig. 20).  
7. If winding the line becomes difficult or the line  
jams, pull the ends of the line away from the  
spool and continue winding the inner reel  
counterclockwise (Fig. 18).  
Bump Knob  
Foam Seal  
Spring Assembly  
Inner Reel  
Fig. 18  
Fig. 20  
Releasing the Inner Reel  
3. Remove any debris or grass from the knob,  
spring, inner reel, and foam seal. Remove  
any existing line from the inner reel before  
cleaning. Wash the inner reel with warm  
soapy water (Fig. 21).  
If the SpeedSpool does not operate correctly  
when bumping the head on the ground, use the  
following instructions.  
Pull the ends of the line firmly away from the  
spool to release the inner reel (Fig. 18). If this  
procedure does not release the inner reel, follow  
the Cleaning the SpeedSpoolinstructions  
below.  
Inner  
Reel  
Cleaning the SpeedSpool  
If the SpeedSpool becomes difficult to wind or  
does not operate correctly when bumping the  
head on the ground, use the following  
instructions.  
Fig. 21  
13  
 
MAINTENANCE AND REPAIR INSTRUCTIONS  
NOTE: The inner reel must be completely dry  
AIR FILTER MAINTENANCE  
before reinstalling it into the outer spool.  
CLEAN AND RE-OIL THE AIR FILTER EVERY  
Do not lubricate the inner reel or outer  
spool assembly.  
10 HOURS OF OPERATION. Your units air filter  
is one of the most important areas to maintain.  
4. Clean the shaft and the inner surface of the  
If it is not maintained, you will void the warranty.  
Before cleaning, make sure the unit is turned off.  
outer spool. To clean the shaft underneath  
the plunger, press down on the plunger  
1. Remove the carburetor/air filter cover  
(Fig. 22). Remove any dirt and/or debris  
by pushing on the tab on top of the cover  
from the shaft.  
(Fig. 24).  
Carburetor/  
Air Filter  
Cover  
Shaft  
Plunger  
Tab  
Fig. 22  
5. Install the inner reel, spring, foam seal, and  
Bump Knob into the outer spool (Fig. 20).  
Fig. 24  
2. Remove the air filter (Fig. 25).  
6. Tighten the Bump Knob clockwise.  
7. Install new line as described in Line  
Installation for the SpeedSpool.  
INSTALLING A PREWOUND REEL  
1. Insert the ends of the two trimming lines into  
the eyelets in the outer spool (Fig. 23), then  
grasp the ends and pull firmly to release the  
line from the holding slots in the outer spool.  
Air Filter  
2. Hold the inner reel in place and install the  
Bump Knob, spring and foam seal in the  
counterclockwise direction. Line installation  
is now complete.  
Fig. 25  
3. Wash the filter in detergent and water (Fig. 26).  
Rinse the filter thoroughly and allow it to dry.  
Fig. 23  
Fig. 26  
14  
 
MAINTENANCE AND REPAIR INSTRUCTIONS  
4. Apply enough clean motor oil to lightly coat  
the filter (Fig. 27).  
The condition of the air filter is important to the  
operation of the unit. A dirty air filter will restrict  
the air flow, which upsets the fuel-air mixture in  
the carburetor. The resulting symptoms are often  
mistaken for an out-of-adjustment carburetor.  
Therefore, check the condition of the air filter  
before adjusting the carburetor. Refer to Air Filter  
Maintenance.  
If the following conditions are experienced, it may  
be necessary to adjust the carburetor:  
The engine will not idle  
The engine hesitates or stalls on acceleration  
A loss of engine power that is not  
corrected by new fuel or cleaning the  
air filter and muffler  
Fig. 27  
NOTE: Warm up the engine for 30-60 seconds  
5. Squeeze the filter to spread and remove  
excess oil (Fig. 28).  
before adjusting the carburetor.  
Adjusting Carburetor  
6. Reinstall the filter (Fig. 25) and air filter cover.  
1. Clean the air filter if it is dirty. Refer to Air  
NOTE: If the unit is operated without the  
carburetor/air filter cover assembled,  
you will VOID the warranty.  
Filter Maintenance.  
2. Fill the tank with clean, properly mixed fuel.  
Refer to Oil and Fuel Information.  
3. If the engine stops frequently when idling, turn  
the idle speed screw clockwise 1/2 turn until the  
engine stabilizes (Fig. 29).  
4. If the cutting head keeps rotating after the trigger  
is released, turn the idle speed screw  
counterclockwise 1/2 turn until the head stops  
rotating (Fig. 29).  
NOTE: Careless adjustments can seriously  
damage your unit. It is recommended  
that carburetor adjustments be made  
by an authorized service dealer.  
Fig. 28  
CARBURETOR ADJUSTMENT  
This unit is equipped with a diaphragm-type  
carburetor that has been carefully calibrated at  
the factory. In most cases, no further adjustment  
is required  
Old or improperly mixed fuel are usually the main  
reasons for the unit not running properly. Drain  
and refill the tank with fresh properly mixed fuel  
prior to doing any adjustments. Refer to Oil and  
Fuel Information for the proper ratio.  
Fig. 29  
15  
 
MAINTENANCE AND REPAIR INSTRUCTIONS  
STORAGE  
REPLACING THE SPARK PLUG  
If the unit will be stored for an extended period  
of time, use the following storage procedure.  
Use a Champion RCJ-6Y spark plug (or equivalent).  
Correct air gap is 0.025 in. (0.655 mm). Remove  
plug after every 50 hours of operation and check  
its condition.  
1. Drain all fuel from the fuel tank and drain  
into a container with the same 2-cycle fuel  
mixture. Do not use fuel that has been  
stored for more than 60 days. Dispose  
of the old fuel/oil mix in a safe manner and  
use a fresh mix.  
1. Stop the engine and allow it to cool. Pull the  
wire off of the spark plug.  
2. Clean around the spark plug and remove it  
from the cylinder head. Use a 5/8" socket to  
remove the plug.  
2. Start the engine and allow it to run until it  
stalls. This ensures that all fuel has been  
drained from the carburetor.  
CAUTION: Replace a cracked, fouled  
or dirty spark plug. Do not sand blast,  
scrape, or clean electrodes because  
the engine could be damaged by grit  
entering the cylinder.  
3. Allow the engine to cool. Remove the spark  
plug and put approximately 1 oz (30 ml) of  
any high quality motor oil or 2-cycle oil into  
the cylinder. Pull the starter rope slowly to  
distribute the oil. Reinstall the spark plug.  
3. Set the air gap at 0.025 in. (0.655 mm) using  
a wire feeler gauge (Fig. 30). Install a correctly  
gapped spark plug into the cylinder head.  
Torque to 110-120 inlb (12.3-13.5 Nm).  
4. Thoroughly clean the unit and inspect for any  
loose or damaged parts. Repair or replace  
damaged parts and tighten loose screws, nuts  
or bolts. The unit is now ready for storage.  
5. To prevent unauthorized use or damage, lock up  
and store the unit in a dry, well-ventilated area.  
NOTE: Remove the spark plug and drain all of  
the oil from the cylinder before attempting  
to start the trimmer after storage.  
0.025 inch  
(0.655 mm)  
ACCESSORIES/REPLACEMENT PARTS  
2-Cycle Oil. . . . . . . . . . . . . . . . . . . . . . . . . 147543  
Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . 181765  
Replacement Line . . . . . . . . . . . . . . . . . . . 181472  
Replacement Line Cartridge . . . . . . . . . . . 181460  
Inner Reel Spring . . . . . . . . . . . . . . . . . . . 181465  
Bump Head Knob Assembly. . . . . . . . . . . 181468  
Fuel Cap. . . . . . . . . . . . . . . . . . . . . . . . . . 180000  
Shoulder Strap . . . . . . . . . . . . . . . . . . . . . 682075  
Click-Link Coupler . . . . . . . . . . . . . . . . . . 181616  
Fig. 30  
CLEANING  
WARNING: Always turn off your  
trimmer before you clean or perform  
any maintenance on it.  
Use a small brush to clean off the outside of the  
unit. Do not use strong detergents on plastic  
housing or handle. They can be damaged by  
household cleaners that contain aromatic oils  
such as pine and lemon, and by solvents such as  
kerosene. Wipe off any moisture with a soft cloth.  
16  
 
TROUBLESHOOTING  
PROBLEM  
CAUSE  
ACTION  
Engine will not start  
Turn switch to ON”  
Ignition switch is OFF”  
Fill fuel tank  
Empty fuel tank  
Press primer bulb fully and slowly  
5-7 times  
Primer bulb wasn't pressed  
enough  
Use starting procedure WITHOUT  
USING CHOKE  
Engine flooded  
Drain fuel tank / Add fresh fuel  
mixture  
Old or Improperly Mixed Fuel  
Fouled spark plug  
Engine will not idle  
Excessive oil in oil/fuel  
mixture or Old Fuel  
Replace spark plug / Drain fuel  
tank / Add fresh fuel mixture  
Adjust carburetor  
Carburetor misadjusted  
Drain fuel tank / Add fresh fuel  
mixture  
Old or Improperly Mixed Fuel  
Engine will not accelerate  
Old or Improperly Mixed Fuel  
Cutting head bound with grass  
Drain fuel tank / Add fresh fuel  
mixture  
Stop engine and clean cutting head  
Engine lacks power or  
stalls when cutting  
Throttle wire has come loose  
Dirty air filter  
Tighten throttle wire  
Clean or replace air filter  
No oil in fuel or Old Fuel  
Drain fuel tank / Add fresh fuel  
mixture  
Carburetor misadjusted  
Cutting head bound with grass  
Muffler plugged  
Adjust carburetor  
Stop engine and clean cutting head  
Clean or replace muffler (contact  
authorized service dealer)  
Cutting head will not  
advance line  
Cutting head out of line  
Inner reel bound up  
Cutting head dirty  
Line welded  
Refill with new line  
Replace inner reel  
Clean inner reel and outer spool  
Disassemble, remove the welded  
section and rewind the line  
Disassemble and rewind line  
Line twisted when refilled  
Not enough line is exposed  
Push the Bump Knob and pull out  
line until 4 in (102 mm) of line is  
outside of the cutting head  
Oil in cutting head  
Cutting line advances  
uncontrollably  
Clean cutting head  
If further assistance is required, contact your authorized service dealer.  
17  
 
SPECIFICATIONS  
ENGINE  
Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 2-Cycle  
Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 cu. in. (22.5 cc)  
Clutch Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Centrifugal  
Operating RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,500-8,000 rpm  
Idle Speed RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,600-3,400 rpm  
Ignition Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic  
Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Toggle Switch  
Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025 inch (0.655 mm)  
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel/Oil Mixture  
Fuel/Oil Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32:1  
Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diaphragm, All-Position  
Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto Rewind  
Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Baffled with Guard  
Throttle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Manual Spring Return  
Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 oz (591 ml)  
Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HD Polyethylene  
DRIVE SHAFT & CUTTING HEAD  
Drive Shaft Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aluminum Tube (Click-Link)  
Throttle Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Finger-Tip Trigger  
Operating Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 lbs (4.989 kg)  
Cutting Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . String Cutting Head  
Shoulder Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Optional  
Line Spool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SpeedSpool  
Line Spool Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 inches (76.2 mm)  
Trimming Line Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.080 inches (2.03 mm)  
Cutting Path Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 inches (40.64 cm)  
18  
 
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT  
YOUR WARRANTY RIGHTS AND OBLIGATIONS  
The California Air Resources Board and Ryobi  
MANUFACTURER'S WARRANTY COVERAGE:  
Outdoor Products (ROP), is pleased to explain  
the emission control system warranty on your  
1995 and later lawn and garden equipment  
engine. In California, new lawn and garden  
equipment engines must be designed, built  
and equipped to meet the State's stringent  
anti-smog standards. ROP must warrant the  
emission control system on your lawn and  
garden equipment engine for the periods of  
time listed below provided there has been no  
abuse, neglect or improper maintenance of  
your lawn and garden equipment engine.  
The warranty period begins on the date the  
engine or equipment is delivered to the retail  
purchaser.  
The manufacturer warrants to the initial owner  
and each subsequent purchaser, that the  
engine is free from defects in material and  
workmanship which cause the failure of a  
warranted part for a period of two years.  
Repair or replacement of warranted part will  
be performed at no charge to the owner at  
an Authorized Ryobi Service Center. For the  
nearest location, please contact Ryobi at:  
1-800-345-8746.  
Your emission control system may include parts  
such as the carburetor or fuel injection system,  
the ignition system, and catalytic converter. Also  
included may be hoses, belts, connectors and  
other emission-related assemblies.  
Any warranted part which is not scheduled for  
replacement, as required maintenance which  
is scheduled only for regular inspection to the  
effect of "Repair or replace as necessary" is  
warranted for the warranty period. Any  
Where a warrantable condition exists, ROP will  
repair your lawn and garden equipment engine  
at no cost to you including diagnosis, parts  
and labor.  
warranted part which is scheduled for  
replacement as required maintenance will be  
warranted for the period of time up to the first  
scheduled replacement point for that part.  
The 1995 and later utility and lawn and garden  
equipment engines are warranted for two years.  
If any emission-related part on your engine is  
defective, the part will be repaired or replaced  
by ROP.  
The owner will not be charged for diagnostic  
labor which leads to the determination that a  
warranted part is defective, if the diagnostic  
work is performed at an Authorized Ryobi  
Service Center.  
OWNER'S WARRANTY RESPONSIBILITIES:  
The manufacturer is liable for damages to  
other engine components caused by the  
failure of a warranted part still under warranty.  
As the lawn and garden equipment engine  
owner, you are responsible for the  
Failures caused by abuse, neglect or improper  
maintenance are not covered under warranty.  
performance of the required maintenance  
listed in your operator's manual. ROP  
recommends that you retain all receipts  
covering maintenance on your lawn and  
garden equipment engine, but ROP cannot  
deny warranty solely for the lack of receipts  
or for your failure to ensure the performance  
of all scheduled maintenance.  
The use of add-on or modified parts can be  
grounds for disallowing a warranty claim. The  
manufacturer is not liable to cover failures or  
warranted parts caused by the use of add-on  
or modified parts.  
In order to file a claim, go to your nearest  
Authorized Ryobi Service Center. Warranty  
services or repairs will be provided at all  
Authorized Ryobi Service Centers.  
As the lawn and garden equipment engine  
owner, you should however be aware that  
ROP may deny you warranty coverage if your  
lawn and garden equipment engine or a part  
has failed due to abuse, neglect, improper  
maintenance or unapproved modifications.  
Any manufacturer approved replacement part  
may be used in the performance of any  
warranty maintenance or repair of emission  
related parts and will be provided without  
charge to the owner. Any replacement part  
that is equivalent in performance or durability  
may be used in non-warranty maintenance or  
repair and will not reduce the warranty  
obligations of the manufacturer.  
You are responsible for presenting your lawn  
and garden equipment engine to a Ryobi  
Authorized Service Center as soon as a  
problem exists. The warranty repairs should  
be completed in a reasonable amount of time,  
not to exceed 30 days.  
The following components are included in the  
emission related warranty of the engine, air  
filter, carburetor, primer, fuel lines, fuel pick  
up/fuel filter, ignition module, spark plug and  
muffler.  
If you have any questions regarding your  
warranty rights and responsibilities, you  
should call 1-800-345-8746.  
19  
 
LIMITED TWO-YEAR WARRANTY  
RYOBI OUTDOOR PRODUCTS warrants each new  
RYOBI Product for two (2) years according to the  
following terms.  
ALL IMPLIED WARRANTIES ARE LIMITED IN  
DURATION TO THE TWO (2) YEAR WARRANTY  
PERIOD OR NINETY (90) DAYS FOR PRODUCTS  
USED FOR ANY COMMERCIAL PURPOSE.  
ACCORDINGLY, ANY SUCH IMPLIED  
This warranty extends to the original retail purchaser  
only and commences on the date of original retail  
purchase.  
WARRANTIES INCLUDING MERCHANTABILITY,  
FITNESS FOR A PARTICULAR PURPOSE, OR  
OTHERWISE, ARE DISCLAIMED IN THEIR  
ENTIRETY AFTER THE EXPIRATION OF THE  
APPROPRIATE TWO-YEAR OR NINETY DAY  
WARRANTY PERIOD. RYOBIS OBLIGATION  
UNDER THIS WARRANTY, IS STRICTLY AND  
EXCLUSIVELY LIMITED TO THE REPAIR OR  
REPLACEMENT OF DEFECTIVE PARTS, AND  
ROP DOES NOT ASSUME OR AUTHORIZE  
ANYONE TO ASSUME FOR THEM ANY OTHER  
OBLIGATION. SOME STATES DO NOT ALLOW  
LIMITATIONS ON HOW LONG AN IMPLIED  
WARRANTY LASTS, SO THE ABOVE LIMITATION  
MAY NOT APPLY TO YOU.  
Any part of the RYOBI Product manufactured or  
supplied by RYOBI and found in the reasonable  
judgement of RYOBI to be defective in material or  
workmanship will be repaired or replaced by an  
authorized RYOBI service dealer without charge  
for parts and labor.  
The RYOBI Product including any defective part  
must be returned to an authorized service dealer  
within the warranty period. The expense of delivering  
the RYOBI Product to the dealer for warranty work  
and the expense of returning it back to the owner  
after repair or replacement will be paid for by the  
owner. RYOBIs responsibility in respect to claims is  
limited to making the required repairs or replacements  
and no claim of breach of warranty shall be cause  
for cancellation or rescission of the contract of sale  
of any RYOBI Product. Proof of purchase will be  
required by the dealer to substantiate any warranty  
claim. All warranty work must be performed by an  
authorized RYOBI service dealer.  
RYOBI ASSUMES NO RESPONSIBILITY FOR  
INCIDENTAL, CONSEQUENTIAL OR OTHER  
DAMAGES INCLUDING, BUT NOT LIMITED  
TO EXPENSE OF RETURNING THE RYOBI  
PRODUCT TO AN AUTHORIZED SERVICE  
DEALER AND EXPENSE OF DELIVERING IT BACK  
TO THE OWNER, MECHANICS TRAVEL TIME,  
TELEPHONE OR TELEGRAM CHARGES, RENTAL  
OF A LIKE PRODUCT DURING THE TIME  
WARRANTY SERVICE IS BEING PERFORMED,  
TRAVEL, LOSS OR DAMAGE TO PERSONAL  
PROPERTY, LOSS OF REVENUE, LOSS OF USE  
OF THE PRODUCT, LOSS OF TIME, OR  
This warranty is limited to ninety (90) days from  
the date of original retail purchase for any RYOBI  
Product that is used for rental or commercial  
purposes, or any other income-producing purpose.  
INCONVENIENCE. SOME STATES DO NOT  
ALLOW THE EXCLUSION OR LIMITATION OF  
INCIDENTAL OR CONSEQUENTIAL DAMAGES,  
SO THE ABOVE LIMITATION OR EXCLUSION  
MAY NOT APPLY TO YOU.  
This warranty does not cover any RYOBI Product  
that has been subject to misuse, neglect, negligence,  
or accident, or that has been operated in any way  
contrary to the operating instructions as specified in  
the RYOBI Operators Manual. This warranty does not  
apply to any damage to the RYOBI Product that is the  
result of improper maintenance or to any RYOBI  
Product that has been altered or modified so as to  
adversely affect the product's operation, performance  
or durability or that has been altered or modified so  
as to change its intended use. The warranty does not  
extend to repairs made necessary by normal wear or  
by the use of parts or accessories which are either  
incompatible with the RYOBI Product or adversely  
affect its operation, performance or durability.  
This warranty gives you specific legal rights, and  
you may also have other rights which vary from  
state to state.  
This warranty applies to all RYOBI Products  
manufactured by RYOBI and sold in the United  
States and Canada.  
To locate your nearest service dealer dial  
1-800-345-8746 in the United States or  
1-800-265-6778 in Canada.  
In addition, this warranty does not cover:  
A. Tune-ups - Spark Plugs, Carburetor  
Adjustments, Filters  
B. Wear items - Bump Knobs, Outer Spools,  
Cutting Line, Inner Reels, Starter Pulley,  
Starter Ropes, Drive Belts  
RYOBI OUTDOOR PRODUCTS  
550 N. 54th Street  
Chandler, AZ 85226 U.S.A.  
RYOBI reserves the right to change or improve the  
design of any RYOBI Product without assuming any  
obligation to modify any product previously  
manufactured.  
RYOBI CANADA INC.  
275 Industrial Rd  
Cambridge, Ontario N1R 6K2 CANADA  
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.  
FOR QUESTIONS CALL 1-800-345-8746 IN U.S.  
OR 1-800-265-6778 IN CANADA  
OPERATORS MANUAL PART NO. 181961  
PRINTED IN U.S.A.  
REV. A (7520)  
1/98  
 

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