890r 4-Cycle Gas Trimmer/Brushcutter

OPERATORS MANUAL

FOR QUESTIONS, CALL 1-800-345-8746 in U.S. or 1-800-265-6778 in CANADA

www.ryobi.com

IMPORTANT MANUAL

DO NOT THROW AWAY

INTRODUCTION

THANK YOU

Thank you for buying this quality product. This modern outdoor power tool will provide many hours of useful service. You will find it to be a great labor-saving device. This operators manual provides you with easy-tounderstand operating instructions. Read the whole manual and follow all the instructions to keep your new outdoor power tool in top operating condition. The other manual that came with your power tool, the parts manual, contains all the information that you need to order parts.

I. II.

TABLE OF CONTENTS
California Emission Regulations. 3 Rules for Safe Operation. 4-8 A. Important Safety Information. 4-5 B. Safety and International Symbols. 6-7 C. Know Your Unit. 8
PRODUCT REFERENCES, ILLUSTRATIONS AND SPECIFICATIONS
All information, illustrations and specifications in this manual are based on the latest product information available at the time of printing. We reserve the right to make changes at any time without notice. Copyright 1999 Ryobi Outdoor Products, Inc. All Rights Reserved. Click-Link is a registered trademark of Ryobi Outdoor Products. Bump-Head is a trademark of Ryobi Outdoor Products.
III. Assembly Instructions. 9-12 A. Installing and Adjusting the J handle. 9 B. Installing the Harness. 9 C. Removing and Installing the Cutting Attachment Shield. 10 D. Remove the Cutting Attachment and Install the Cutting Blade. 11 E. Remove the Cutting Blade and Install the Cutting Attachment. 11 IV. Oil and Fuel Information. 12-13 A. Recommended Oil Type. 12 B. Adding Oil to Crankcase-Initial Use. 12 C. Recommended Fuel Type. 13 D. Fueling the Unit. 13 V. Starting/Stopping Instructions. 14-15 VI. Operating Instructions. 15-17 A. Operating the Click-Link System. 15 B. Holding the Trimmer. 16 C. Adjusting Trimming Line Length. 16 D. Tips for Best Trimming Results. 16 E. Decorative Trimming. 17 F. Using the Cutting Blade. 17 VII. Maintenance and Repair Instructions. 18-24 A. Maintenance Schedule. 18 B. Line Installation. 18 C. Installing a Prewound Reel. 19 D. Checking the Oil Level. 20 E. Changing the Oil. 20 F. Air Filter Maintenance. 21 G. Carburetor Adjustment. 22 H. Rocker Arm Clearance. 22 I. Replacing the Spark Plug. 24 J. Spark Arrestor Maintenance. 24 K. Accessories/Replacement parts. 24 VIII. Cleaning and Storage. 25 IX. Troubleshooting Chart. 26 X. Specifications. 27 XI. Warranty. 29-30 CONTENTS OF CARTON

SERVICE INFORMATION

Service on this unit both within and after the warranty period should be performed only by an authorized and approved service dealer. Dial: 1-800-345-8746 or www.ryobi.com on the world wide web for authorized service dealers in the United States Or 1-800-265-6778 in Canada to obtain the listing of the authorized service dealer nearest you. to obtain the listing of the authorized service dealer nearest you. DO NOT RETURN THE UNIT TO THE RETAILER. NOTE: PROOF OF PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE. Make sure this manual is carefully read and understood before starting or operating this equipment. THIS PRODUCT IS COVERED BY ONE OR MORE US PATENTS, OTHER PATENTS PENDING.

WHILE OPERATING WITH CUTTING BLADE
Read and understand all safety warnings before operating this unit. Always use the shoulder harness when using the brush blade accessory. Keep the J-handle between the operator and cutting attachment or blade at all times. NEVER cut with the cutting blade located over 30 inches (76 cm) or more above the ground level. Blade thrust may occur when the spinning blade contacts an object that it does not immediately cut. Blade thrust can be violent enough to cause the unit and/or operator to be propelled in any direction , and possibly lose control of the unit. Blade thrust can occur without warning if the blade snags, stalls or binds. This is more likely to occur in areas where it is difficult to see the material being cut. For operation with the brush blade, do not cut anything thicker than 1/2 inch or a violent kickback could occur. Do not attempt to touch or stop the blade when it is rotating. A coasting blade can cause injury while it continues to spin after the engine is stopped or the throttle trigger is released. Maintain proper control until the blade has completely stopped rotating. Do not run the unit at high speed when not cutting. If you strike or become entangled with a foreign object, stop the engine immediately and check for damage. Have any damage repaired before attempting further operations. Do not operate unit with a bent, cracked or dull blade. Discard blades that are bent, warped, cracked or broken. Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury. Replace the blade. Do not use the cutting blade for edging or as an edger, severe personal injury to yourself or others can occur. Use the cutting blade only for the purpose as described in this manual. Stop the engine IMMEDIATELY if you feel excessive vibration. Vibration is a sign of trouble. Inspect thoroughly for loose nuts, bolts or damage before continuing. Repair or replace affected parts as necessary.

AFTER USE

Clean cutting blades with a household cleaner to remove any gum buildup. Oil the blade with machine oil to prevent rust. Lock up and store the cutting blade in an appropriate area to protect the blade from unauthorized use or damage.

OTHER SAFETY WARNINGS

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 or transporting. Be sure to secure the unit while transporting. Store the unit in a dry area, locked up or up high to prevent unauthorized use or damage, out of the reach of children. Never douse or squirt the unit with water or any other liquid. Keep handles dry, clean and free from debris. Clean after each use, see Cleaning and Storage instructions. Keep these instructions. Refer to them often and use them to instruct other users. If you loan someone this unit, also loan them these instructions.

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.
MEANING SAFETY ALERT SYMBOL Indicates danger, warning, or caution. May be used in conjunction with other symbols or pictographs.
WARNING - READ OPERATOR'S MANUAL Read the Operators Manual(s) and follow all warnings and safety instructions. Failure to do so can result in serious injury to the operator and/or bystanders.
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 protection meeting ANSI Z87.1 standards and ear protection when operating this unit.
KEEP BYSTANDERS AWAY WARNING: Keep all bystanders, especially children and pets, at least 50 feet (15 m) from the operating area.
PRIMER BULB Push primer bulb, fully and slowly, 5 to 7 times.
UNLEADED FUEL Always use clean, fresh unleaded fuel.
SYMBOL MEANING OIL Refer to operator's manual for the proper type of oil.
THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY WARNING: Do not operate without the cutting attachment shield in place. Keep away from the rotating cutting attachment.
ON/OFF STOP CONTROL ON / START / RUN
ON/OFF STOP CONTROL OFF OR STOP
HOT SURFACE WARNING Do not touch a hot muffler, gear housing or cylinder. You may get burned. These parts get extremely hot from operation. When turned off they remain hot for a short time.
SHARP BLADE WARNING: Sharp blade on cutting attachment shield. To prevent serious injury, do not touch line cutting blade.
CHOKE CONTROL A FULL choke position. B PARTIAL choke position. C RUN position. BRUSHCUTTERS Replace dull blade. Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury.
TRIMMER/BRUSHCUTTER SAFETY WARNING: Thrown objects and rotating cutter can cause severe injury. Keep bystanders, especially children and pets, at least 50 feet (15 m.) away from the cutting area. The cutting attachment shield must be used when using the trimmer cutting attachment.
WARNING: The operation of any power tool can cause foreign objects to be thrown into your eyes. This can lead to severe eye damage. Before commencing power tool operation, always wear safety glasses or goggles that are marked as meeting ANSI Z87.1 standards, and a full face shield when needed.

Remove the cutting attachment shield from the shield mount by removing the three (3) screws with a flat blade screwdriver (Fig. 7). Store parts for future use.
Cutting Attachment Shield (3) Screws
Output Shaft Output Shaft Bushing Locking Rod Locking Rod Slot Shaft Bushing Hole

Fig. 8

2. While holding the locking rod, remove the cutting attachment by turning it clockwise off of the output shaft (Fig. 9). Store the cutting attachment for future use.

Shield Mount

Fig. 7
Locking Rod Locking Rod Slot Fig. 9
Install the cutting attachment shield when using the unit as a grass trimmer.
WARNING: To avoid serious personal injury, the cutting attachment shield SHALL be in place at all times while operating the unit as a grass trimmer.
Install the cutting attachment shield on the shield mount by inserting the three (3) screws into the shield mount. Tighten securely with a flat blade screwdriver (Fig. 7).
Install the Cutting Blade
WARNING: To avoid serious personal injury, always wear gloves while handling or installing the blade.
3. Place the cutting blade on the output shaft (Fig. 10).
Blade Retainer Blade Cover Cutting Blade Pilot Hole Nut
REMOVE THE CUTTING ATTACHMENT AND INSTALL THE CUTTING BLADE
NOTE: To make removing or installing the cutting blade or cutting attachment easier, place the unit on the ground or on a work bench. Remove the Cutting Attachment Shield See Removing and Installing Cutting Attachment Shield,. Remove the Cutting Attachment
WARNING: The gear housing gets hot with use and can result in injury to the operator. When the unit is turned off it remains hot for a short time. Do not touch the gear housing until it has cooled.
1. Align the shaft bushing hole with the locking rod slot and insert the locking rod into the shaft bushing hole (Fig. 8).
Output Shaft Locking Rod Shield Mount Fig. 10
4. Center the cutting blade on the pilot step of the output shaft bushing (Fig. 11).

Output Shaft Pilot Step

If using a torque wrench and an 5/8 inch socket tighten to; 325 - 335 inlb, 27 - 28 ft.lb, 37 -38 Nm. Without a torque wrench, use a 5/8 inch closed-end or socket wrench, turning the nut until the blade retainer is snug against the shaft bushing. Make sure that the blade is installed correctly, then rotate the nut an additional 1/4 to 1/2 turn counterclockwise (Fig. 14).

Output Shaft Bushing

Fig. 11
5. Make sure that the cutting blade is centered on the pilot step and sitting flat against the output shaft bushing (Fig. 12).
WARNING: If the cutting blade is off-center, the unit will vibrate, and the blade may fly off, which can cause serious personal injury.

Pilot Step

1/4-1/2 turn Counterclockwise

Fig. 14

9. Remove the locking rod from the locking rod slot.
WARNING: To avoid serious personal injury or damage to the unit, do not start or operate this unit with the locking rod in the locking rod slot.
10. Remove the cutting blade cover by un-snapping the plastic lock on the cover and pulling it from the blade. Store the cover for future use.

Fig. 12

6. Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing hole (Fig. 8). 7. Put the blade retainer and nut on the output shaft. Make sure that the blade is installed correctly. 8. Tighten counterclockwise against the blade while holding the locking rod (Fig. 13).
WARNING: Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury. Replace the blade.
REMOVE THE CUTTING BLADE AND INSTALL THE CUTTING ATTACHMENT

Remove the Cutting Blade

1. Install the cutting blade cover. Pull the cover around the blade and click the plastic lock. 2. Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing hole (Fig. 8).

Counterclockwise

Choke Lever

Primer Bulb

Fig. 22

6. While pressing the throttle lock-out, squeeze the throttle control to the wide open (full throttle) position (Fig. 21). 7. With the unit in the starting position (Fig. 23) pull the starter rope briskly 5 times in the FULL choke (A) position. If the engine attempts to run before the fifth pull, proceed to step 8. position 8. Move the choke lever to the PARTIAL (B) (Fig. 22). NOTE: The engine will not run in the FULL choke (A) position.

STOPPING INSTRUCTIONS

1. Release your hand from the throttle control (Fig. 23). Allow the engine to idle. 2. To stop the engine, put the Start/Stop Engine Control in the STOP [O] position (Fig. 21).

OPERATING INSTRUCTIONS

OPERATING THE CLICK-LINK SYSTEM
The system enables the use of these optional add-ons. Blower/Vacuum. BV720r Cultivator. GC720r Edger. LE720r Hedge Trimmer. HS720r Snow Thrower. ST720r Straight Shaft Trimmer. SS725r Sweeper/Blower. SB720r Tree Pruner. TP720r Turbo Blower. TB720r Click-Link 2. While firmly holding the add-on, push it straight into the Click-Link coupler (Fig. 25). NOTE: Aligning the release button with the guide recess will help installation (Fig. 24).
Release Button Click-Link Coupler Primary Hole
Upper Shaft Housing Fig. 25

Lower Shaft Housing

WARNING: Read and understand operators manual for add-on prior to operation.
Removing the Cutting Attachment or Add-Ons: 1. Turn the knob counterclockwise to loosen (Fig. 24). 2. Press and hold the release button (Fig. 24). 3. While firmly holding the upper shaft housing, pull the cutting attachment or add-on straight out of the Click-Link coupler (Fig. 25). Installing the Cutting Attachment or Add-Ons:
3. Turn the knob clockwise to tighten (Fig. 26).
CAUTION: Lock the release button in the primary hole and securely tighten the knob before operating this unit.

90 Edging Hole

WARNING: To avoid serious personal injury and damage to the unit, shut unit off before removing or installing add-ons.

Fig. 27

ADJUSTING TRIMMING LINE LENGTH
The Bump Head cutting attachment allows you to release trimming line without stopping the engine. To release more line, lightly tap the cutting attachment on the ground (Fig. 28) while operating the trimmer at high speed. NOTE: Always keep the trimming line fully extended. Line release becomes more difficult as cutting line becomes shorter

Fig. 28

DECORATIVE TRIMMING
Decorative trimming is accomplished by removing all vegetation around trees, posts, fences, etc. Rotate the whole unit so that the cutting attachment is at a 30 angle to the ground (Fig. 29).
WARNING: The blade continues to spin after the engine is turned off. The coasting blade can seriously cut you if accidentally touched.
Swing the unit in the same direction as the blade spins, which increases the cutting action. Move forward to the next area to be cut after the return swing and plant feet again. The cutting blade is designed with a second cutting edge, which can be used by removing the blade, turning it upside down, and reinstalling it.
WARNING: Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury to yourself or others. Replace the blade.
To reduce the chance of material wrapping around the blade, follow these steps: Cut at full throttle. Swing the unit into material to be cut from your right to your left (Fig. 31). Avoid the material just cut as you make the return swing.

Fig. 29

USING THE CUTTING BLADE
WARNING: Always wear eye, hearing, foot, body protection and the strap to reduce the risk of injury when operating this unit. WARNING: Do not use the cutting blade for edging or as an edger, severe personal injury to yourself or others can occur.
Before operating the unit with the cutting blade stand in the operating position (Figs. 30). Refer to Holding the Trimmer, Pg. 16. Cutting Blade Operating Tips: To establish a rhythmic cutting procedure: Plant feet firmly, comfortably apart. Bring the engine to full throttle before entering the material to be cut. The blade has maximum cutting power at full throttle and is less likely to bind, stall, or cause blade thrust, which can result in serious personal injury to the operator or others.
WARNING: Do not clear away cut material with the engine running or blade turning. To avoid serious personal injury, turn off engine. Allow the blade to stop before removing materials wrapped around the blade shaft.
WARNING: Blade thrust may occur when the spinning blade contacts an object that it does not immediately cut. Blade thrust can be violent enough to cause the unit and/or operator to be propelled in any direction, and possibly lose control of the unit. Blade thrust can occur without warning if the blade snags, stalls or binds. This is more likely to occur in areas where it is difficult to see the material being cut.

4. Use a clean cloth to clean the the inner reel, spring, shaft, and inner surface of the outer spool (Fig. 33). 5. Check the indexing teeth on the inner reel and outer spool for wear (Fig. 34). If necessary, remove burrs or replace the reel and spool.

Fig. 33 Indexing Teeth

Outer Spool

Spring Inner Reel Bolt

Fig. 34

Bump Knob

Fig. 32
6. Take approximately 25 feet (7.6 m) of new trimming line, loop it into two equal lengths. Insert each end of the line through one of the two holes in the inner reel (Fig. 35). Pull the line through the inner reel so that the loop is as small as possible. NOTE: Always use the correct line length when installing trimming line on the unit. The line may not release properly if the line is too long.

Holding Slots

Fig. 37

Fig. 35

7. Wind the lines in tight even layers, onto the reel (Fig. 36). Wind the line in the direction indicated on the inner reel. Place your index finger between the two lines to stop the lines from overlapping. Do not overlap the ends of the line. NOTE: Failure to wind the line in the direction indicated will cause the cutting attachment to operate incorrectly.

Fig. 38

INSTALLING A PREWOUND REEL
1. Hold the outer spool with one hand and unscrew the Bump Knob counterclockwise (Fig. 32). Inspect the bolt inside the Bump Knob to make sure it moves freely. Replace the Bump Knob if damaged. 2. Remove the old inner reel from the outer spool (Fig. 32). 3. Remove the spring from the old inner reel (Fig. 32). 4. Place the spring in the new inner reel. NOTE: The spring must be assembled on the inner reel before reassembling the cutting attachment. 5. Insert the ends of the line through the eyelets in the outer spool (Fig. 38). 6. Place the new inner reel inside the outer spool. Push the inner reel and outer spool together. While holding the inner reel and outer spool, grasp the ends and pull firmly to release the line from the holding slots in the spool. 7. Hold the inner reel in place and install the Bump Knob by turning clockwise. Tighten securely. Replacement Parts: See Accessories / Replacement Parts on page 24.

Fig. 36

8. Insert the ends of the line into the two holding slots (Fig. 37). 9. Place the spring in the inner reel. Insert the ends of the line through the eyelets in the outer spool and place inner reel inside the outer spool (Fig. 38). Push the inner reel and outer spool together. While holding the inner reel and outer spool, grasp the ends and pull firmly to release the line from the holding slots in the spool. NOTE: The spring must be assembled on the inner reel before reassembling the cutting attachment. 10. Hold the inner reel in place and install the Bump Knob by turning counterclockwise. Tighten securely.

This requires disassembly of the engine. If you feel unsure or unqualified to perform this, take the unit to an authorized service center. NOTE: Inspect the valve to rocker arm clearance with a feeler gauge after the first 10 hours of operation and then every 50 hours of operation thereafter. The engine must be cold when checking or adjusting the valve clearance. This task should be performed inside, in a clean, dust free area. 1. Remove the muffler cover by pressing down on the corner with a flat blade screwdriver (Fig. 49). Slide the notches on the sides of the muffler cover over the tabs on the engine cover and remove

Engine Cover

WARNING: The cutting attachment may be spinning during idle speed adjustment. Wear protective clothing and observe all safety instructions to prevent serious personal injury.
If after checking the fuel and cleaning the air filter the engine still will not idle, adjust the idle speed screw as follows. 1. Start the engine and let it run at a high idle for a minute to warm up. 2. Release the throttle trigger and let the engine idle. If the engine stops, insert a small phillips or flat blade screwdriver into the hole in the engine cover (Fig. 48). Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly. NOTE: The cutting attachment should not rotate when the engine idles. 3. If the cutting attachment rotates when the engine idles, turn the idle speed screw counterclockwise 1/8 of a turn at a time (as needed), to reduce idle speed.

Muffler Cover

Fig. 49
2. Remove the two (2) screws on top of the engine cover with a phillips screwdriver (Fig. 50).
Idle Adjustment Screw Engine Cover Top View Of The Engine Remove Screws

Muffler Fig. 48 Fig. 50

3. Remove the screw on back of the engine cover (Fig. 51).
Rocker Arms Adjusting Nuts
Feeler Gauge Gasket Fig. 51
4. Clean dirt from around the spark plug. Remove the spark plug from the cylinder head by turning a 5/8 in. socket counterclockwise. 5. Disconnect the spark plug wire. 6. Remove the engine cover. 7. Clean dirt from around the rocker arm cover. Remove the screw holding the rocker arm cover with a large flat blade screwdriver or Torx T25 bit (Fig. 52). Remove the rocker arm cover and gasket.

TRANSPORTING

Allow the engine to cool before transporting. Secure the unit while transporting. Drain the gas tank before transporting. Tighten gas cap before transporting.

TROUBLESHOOTING

ENGINE WILL NOT START
Ignition switch is OFF Empty fuel tank Primer bulb wasn't pressed enough Engine flooded Old Gasoline Fouled spark plug

ACTION

Turn switch to ON Fill fuel tank Press primer bulb fully and slowly 5-7 times Use starting procedure with choke lever in the RUN position, Pg. 14 Drain fuel tank / Add fresh Gasoline Replace or clean the spark plug

ENGINE WILL NOT IDLE

Air Filter is Plugged Old Gasoline Improper carburetor adjustment
Replace or clean the air filter Drain fuel tank / Add fresh Gasoline Adjust per instruction Pg. 22
ENGINE WILL NOT ACCELERATE
Old Gasoline Improper carburetor adjustment Cutting head bound with grass Dirty air filter Clogged Spark Arrestor Screen
Drain gas tank / Add fresh Gasoline Take to an authorized service dealer for carburetor adjustment Stop the engine and clean the cutting attachment Clean or replace the air filter Clean or Replace. See Pg. 24
ENGINE LACKS POWER OR STALLS WHEN CUTTING
Old Gasoline Improper carburetor adjustment Clogged Spark Arrestor Screen
Drain fuel tank / Add fresh Gasoline Take to an authorized service dealer for carburetor adjustment Clean or Replace. See Pg. 24
CUTTING HEAD WILL NOT ADVANCE LINE
Cutting head bound with grass Cutting head out of line Inner reel bound up Cutting head dirty Line welded Line twisted when refilled Not enough line is exposed
Stop the engine and clean cutting attachment Refill with new line Replace the inner reel Clean inner reel and outer spool Disassemble, remove the welded section and rewind the line Disassemble and rewind the line Push the Bump Knob and pull out line until 4 inches (102 mm) of line is outside of the cutting attachment
If further assistance is required, contact your authorized service dealer.

SPECIFICATIONS

ENGINE
Engine Type. Air-Cooled, 4-Cycle Displacement. 1.6 cu. in. (26.2 cc) Clutch Type. Centrifugal Operating RPM (Trimmer). 6,800-7,800 rpm Operating RPM (Brushcutter). 8,000-9,000 rpm Idle Speed RPM. 2,800-3,200 rpm Ignition Type. Electronic Ignition Switch. Rocker Switch Valve clearance (intake and exhaust).003.006 in. (.076.0152 mm) Spark Plug Gap. 0.025 inch (0.655 mm) Lubrication. SAE 30 Oil Crankcase Oil Capacity. 3.4 oz (100 ml) Fuel. Unleaded 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 ATTACHMENT
Drive Shaft Housing. Aluminum Tube (Click-Link) Throttle Control. Finger-Tip Trigger Unit Weight (No Fuel, with J-handle, Cutting attachment shield and Cutting attachment). 13.5 lbs (6.13 kg) Cutting Mechanism. 4-Tooth Cutting Blade, Dual String Cutting Head Line Spool. Bump Line Releaser Line Spool Diameter. 4 inches (101.6 mm) Trimming Line Diameter. 0.095 inch (2.41 mm) Cutting Path Diameter, Cutting Attachment. 18 inches (45.7 cm) Cutting Path Diameter, Cutting Blade. 8 Inches (204 mm) Shoulder Harness. Single Quick-Snap
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS
The California Air Resources Board and Ryobi Outdoor Products (ROP), are pleased to explain the emission control system warranty on your 2000 and later small off-road engine. In California, new small off-road 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 small off-road engine for the periods of time listed below provided there has been no abuse, neglect or improper maintenance of your small off-road engine. 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. Where a warrantable condition exists, ROP will repair your small off-road engine at no cost to you including diagnosis, parts and labor. The 2000 and later small off-road 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.
MANUFACTURER'S WARRANTY COVERAGE:
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. 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 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 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. The manufacturer is liable for damages to other engine components caused by the failure of a warranted part still under warranty. Failures caused by abuse, neglect or improper maintenance are not covered under warranty. 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. 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. 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.

RYOBI OUTDOOR PRODUCTS 550 N. 54th Street Chandler, AZ 85226 U.S.A. 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. 182436 PRINTED IN U.S.A. REV. A (9561) 10/99

ENGINE PARTS - MODEL 890r 4-CYCLE GAS TRIMMER

PPN-41CD890A034

Part Numbers On Following Page

Reissued 6/02

Part No.

Description

753-1222 791-182339 791-181025 791-182098 791-182099 791-182340 791-182101 791-182100 791-182341 791-182103 791-181038 791-182102 791-181033 791-182653 791-182344 753-1226 791-182749 753-1232 791-181034 791-182347 791-182348 791-182732 753-1225 791-181751 791-182350 791-182097 791-181750 791-181757 791-182351 791-182271 791-182352 791-182353 791-181080 791-182354 791-182355 791-182356 753-1231 791-181048 791-182359 791-180890 791-181045 791-181046 791-182361 753-04092 753-1241
Engine Cover Engine Cover Screws Valve Cover Screw Valve Cover Valve Cover Gasket Rocker Adjustment Nut Rocker Arm Pivot Rocker Arm Rocker Arm Stud Valve Spring Retainer Valve Spring Push Rod Guide Push Rod Cylinder Head Assembly Cylinder Screw Intake Baffle Carburetor Mount Gasket Muffler Baffle Nut Carburetor Mount (includes 19) Carburetor Mount Screw Carburetor Gasket Carburetor with Primer O-Ring, Carburetor Air Filter/Choke Cover Assembly (includes 29 & 30) Breather Tube Air Filter Mounting Screw Air Filter Air Filter Cover Fuel Cap Fuel Return Line Fuel Pick-Up Line with Filter Screw Washer Fuel Tank Assembly (includes 31-33) Fuel Tank Shield Throttle Cable Muffler Gasket Muffler (includes 40, 42-44) Spark Arrestor Screen Screen Cover Screw Muffler Mounting Screw Muffler Cover Nut

88 * * * * * *

791-181247 753-1199 753-1236 791-182366 791-181079 791-611061 791-613103 791-181020 753-04154
Pal Nut Retaining Ring Recoil Pulley Recoil Spring Nut Clip Pull Handle Rope Guide Rope Starter Housing Screw Starter Housing Assembly (includes 46-52) 791-182368 Clutch Washer 753-1238 Clutch with Spacer 791-153592 Clutch Drum 753-1239 Clutch Cover 791-145569 Anti-Rotation Screw 753-1240 Screw 791-181345 Clutch Cover Screw 791-182725 Ignition Module with Screws 791-181065 Spacer 791-181867 Flywheel 791-182743 Shroud Assembly with Screws (includes 86) 791-182376 Crankcase Assembly 791-Elbow 791-182379 Breather Hose 791-181015 Cam Gear 753-1242 Cam Follower 791-181013 Cam Bracket 791-181012 Cam Bracket Screw 791-181040 Valves, Intake and Exhaust 791-182374 Cylinder Gasket 791-181018 Oil Pan Gasket 791-182377 Oil Pan (includes 75 & 77) 791-181020 Oil Pan Screw 791-182378 Dipstick Assembly (includes 79) 791-182290 O-Ring 791-181009 Connecting Rod 791-181008 Wrist Pin Button 753-1243 Piston 791-181006 Wrist Pin 791-181005 Piston Ring Set 791-182409 Washer 791-181861 Screw 791-612468 Compression Spring 791-182537 Grommet 791-180852B Spark Plug 753-04087 Short Block Assembly (includes 3-15, & 66-84) 791-180142 Starter Pawl Repair Kit 753-04014 Carburetor Repair Kit Cylinder Assembly (includes 9, 12, 14, 74) 791-182745 Parts not shown
BOOM AND TRIMMER PARTS - MODEL 890r 4-CYCLE GAS TRIMMER

45 * * *

791-182801 791-182802 791-182803 791-182690 753-1231 791-182804 791-182805 791-610327 753-1247 791-181099 791-612831 791-612021 791-683295 791-181811 791-181812 791-181813 791-181814 791-181815 791-145569 791-181616B 791-182057 791-181617 791-181618B 791-181886 791-182541 791-613300 791-182200 791-182193 791-182195 791-145569 791-147492 791-182196 791-683304 791-683299 791-682061 791-147490 791-612483 791-683301 791-612026 791-610636B 791-147495 791-180814B 791-145873B 791-613231 791-181699 791-180014B 791-613226 791-682075
9 Throttle Housing and 17 Trigger Assembly (includes 2-4) Throttle Trigger Lock-Out 18 Throttle Trigger Throttle Trigger Spring Throttle Cable Assembly Lead Wire Assembly 24 Switch Assembly (includes 6) Harness Clip Upper Drive Shaft Housing Assembly 33 J-Handle Assembly (includes 11 & 12) 29 Grip 35 Tube Closure Handle Bracket Assembly (includes 14-19) Screw Upper Handle Clamp 34 Middle Handle Clamp Lower Handle Clamp Nut Anti-Rotation Screw Click-Link Coupler (includes 21-24) 35 Screw Bolt 44 Adjustment Knob 43 Knob Retaining Nut Lower Drive Shaft Housing Assembly Lower Flexible Drive Shaft Shield Mount Screw Assembly 2 piece Gearbox Assembly (includes 27, 29 & 30) Gearbox Mounting Hardware Anti-Rotation Screw 36 Blade Shield/Shield Mount 45 Blade Driver Shield Mounting Screw Shield and Blade Assembly (includes 34) Blade Assembly Retaining Washer 2 Piece Gearbox Assembly Parts Item 791-182191 Left Housing Spool Shaft 47 791-182192 Right Housing Outer Spool and 48 791-182194 Pinion Gear Assembly Eyelet Assembly 49 791-182199 Output Shaft Bushing Retainer 50 791-182198 Output Shaft Gear Spring 51 791-182197 Output Shaft Assembly Inner Reel (includes 48 & 49) Bump Head Knob Assembly 4-Tooth Blade Blade Cover Nut Blade Retaining Kit (includes 36 & 45) Locking Rod Tool Shoulder Harness