English Operator’s Manual Curved Shaft, 4-Cycle Trimmer Model YM26CS IMPORTANT: Read safety rules and instructions carefully before operating equipment. NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington. All U.S.
TABLE OF CONTENTS Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Know Your Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Adjusting the J-Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
SECTION 1: RULES FOR SAFE OPERATION READ ALL INSTRUCTIONS • This unit was not designed to be used as a brushcutter. Do not attach or operate this unit with any type of brushcutting blade or brushcutting attachment. WARNING: When using the unit the safety rules must be followed. For your own safety and that of bystanders please read these instructions before operating the unit. Please keep the instructions safe for later use.
SECTION 1: RULES FOR SAFE OPERATION • Be sure the cutting attachment is not in contact with anything before starting the unit. • Allow the engine to cool before storing or transporting. Be sure to secure the unit while transporting. • Use the unit only in daylight or good artificial light. • Store the unit in a dry area, locked up or up high to prevent unauthorized use or damage, out of the reach of children. • Avoid accidental starting. Be in the starting position whenever pulling the starter rope.
SECTION 1: RULES FOR SAFE OPERATION 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.
SECTION 1: RULES FOR SAFE OPERATION SYMBOL MEANING • 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 or cylinder. You may get burned. These parts get extremely hot from operation. When turned off they remain hot for a short time.
SECTION 2: KNOW YOUR TRIMMER Spark Arrestor APPLICATIONS As a trimmer; • Cutting grass and light weeds. • Edging • Decorative trimming around trees, fences, etc. Other optional accessories may be used with the 875r. See list of add-ons on page 13.
SECTION 3: ADJUSTING THE J-HANDLE 3. While holding the unit in the operating position (Fig. 3), position the J-handle to the location that provides you the best grip. ADJUSTING THE J-HANDLE 1. Loosen the four (4) screws holding the J-handle in place (Fig. 1). Do not completely remove the screws. J-Handle (4) Screws Fig. 1 2. Slide the J-handle in or out until the arrow/white line on the decal touches the clamp assembly (Fig. 2). Fig. 3 4. Tighten the clamp screws evenly, until the J-handle is secure.
SECTION 4: OIL AND FUEL INFORMATION 4. Pour the entire bottle of oil into the oil fill hole (Fig. 6). DANGER: OVERFILLING OIL CRANKCASE MAY CAUSE SERIOUS PERSONAL INJURY! The importance of checking and maintaining the proper oil level in the crank case cannot be overemphasized. Check oil before each use and change as needed. See Changing the Oil in the Maintenance and Repair Instructions section. RECOMMENDED OIL TYPE Using the proper type and weight of oil in the crankcase is extremely important.
SECTION 4: OIL AND FUEL INFORMATION FUELING UNIT 2. Place spout of gas container into the fill hole on the fuel tank (Fig. 7) and fill tank. WARNING: Gasoline is extremely flammable and its vapors can explode if 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. WARNING: Add gasoline in a clean, well ventilated area outdoors.
SECTION 5: STARTING/STOPPING INSTRUCTIONS 6. Squeeze the throttle control to the wide open (full throttle) position. 7. With the unit in the starting position (Fig. 10) 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. 8. Move the choke lever to the PARTIAL (B) position (Fig. 9). 11. Release the throttle control to the idle position and begin operation.
SECTION 6: OPERATING INSTRUCTIONS 2. While firmly holding the add-on, push it straight into the EZ-Link™ coupler (Fig. 12). OPERATING THE EZ-LINK™ SYSTEM EZ-Link™ The system enables the use of these optional add-ons. Blower/Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . BV720r Cultivator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GC720r Edger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LE720r Hedge Trimmer . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6: OPERATING INSTRUCTIONS HOLDING THE TRIMMER Each time the head is bumped, about 1 inch (25.4 mm.) of trimming line is released. A blade in the cutting attachment shield will cut the line to the proper length if excess line is released. For best results, tap the Bump Head™ on bare ground or hard soil. If line release is attempted in tall grass, the engine may stall. Always keep the trimming line fully extended. Line release becomes more difficult as the cutting line becomes shorter.
SECTION 6: OPERATING INSTRUCTIONS 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. 15). Fig. 15 SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to an authorized service dealer.
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS LINE INSTALLATION FOR THE SPEEDSPOOL® Always use genuine Ryobi 0.080 inch (2.03 mm) replacement line. Line other than specified may make the engine overheat or fail. Trimming Line Eyelet WARNING: Never use metal-reinforced line, wire, or rope, etc. These can break off and become dangerous projectiles. There are two methods to replace the SpeedSpool® trimming line.
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS INSTALLING A PREWOUND REEL 1. Turn the bump knob counterclockwise and remove the bump knob, spring and foam seal (Fig. 22). 7. Repeat procedures 4-6 with the second piece of line. 8. Hold the outer spool. Wind the inner reel counterclockwise until approximately four (4) inches (102 mm) of line remain (Fig. 20). NOTE: Do not wind the inner reel before installing the second piece of line. Bump Knob Foam Seal Spring Inner Reel Fig. 22 2.
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS CLEANING THE SPEEDSPOOL® Cleaning the SpeedSpool® may be necessary: • To remove jammed or excess line, or • If the SpeedSpool® becomes difficult to wind or does not operate correctly when bumping the head on the ground. 1. Hold the outer spool, and unscrew the bump knob counterclockwise (Fig. 24). 5. Clean the shaft and the inner surface of the outer spool. To clean the shaft underneath the plunger, press down on the plunger (Fig. 26).
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS CHECKING THE OIL LEVEL DANGER: OVERFILLING OIL CRANKCASE MAY CAUSE SERIOUS PERSONAL INJURY! The importance of checking and maintaining the proper oil level in the crank case cannot be overemphasized. Check oil before each use and change as needed. See Changing the Oil below. CAUTION: To prevent extensive engine wear and damage to the unit, always maintain the proper oil level in the crankcase.
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS 4. Wipe up any oil residue on the unit and clean up any oil that may have spilled. Dispose of the oil according to Federal, State and Local regulations. Choke Lever Air Filter 5. Refill the crankcase with 3.4 fluid ounce (100 ml) of SAE 30 SF, SG, SH oil. Air Filter Cover NOTE: Use the bottle and spout saved from initial use to measure the correct amount. 3.4 ounce (100 ml) is approximately to the top of the label on the bottle (Fig. 31).
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS 5. Squeeze the filter to spread and remove excess oil (Fig. 36). Clean Air Filter The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict air flow and change the air/fuel mixture. This is often mistaken for an out of adjustment carburetor. Check the condition of the air filter before adjusting the idle speed screw. Refer to Air Filter Maintenance in the Maintenance and Repair Instructions section.
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS 3. Remove the screw behind the engine cover (Fig. 40). ROCKER ARM CLEARANCE 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 25 hours of operation thereafter. Screw • The engine must be cold when checking or adjusting the valve clearance.
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS 9. Slide the feeler gauge between the rocker arm and the valve return spring. Measure the clearance between the valve stem and rocker arm (Fig 42). Do both intake and exhaust valves. Rocker Arms 10. If the clearance is not within specification: a. Turn the adjusting nut using a 5/16 inch (8 mm) wrench or nut driver (Fig. 42). • To increase clearance, turn the adjusting nut counterclockwise. • To decrease clearance, turn the adjusting nut clockwise. b.
SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS REPLACING THE SPARK PLUG SPARK ARRESTOR MAINTENANCE Use only genuine MTD spark plugs. The correct air gap is 0.025 in. (0.655 mm.). Remove the plug after every 50 hours of operation and check its condition. 1. Stop the engine and allow it to cool. Grasp the plug wire firmly and pull the cap from the spark plug. 2. Clean dirt from around the spark plug. Remove the spark plug from the cylinder head by turning a 5/8 in. socket counterclockwise. 3.
SECTION 8: CLEANING AND STORAGE LONG TERM STORAGE CLEANING If the unit will be stored for an extended time, 1. Drain all gasoline from the gas tank into a container . Do not use gas that has been stored for more than 60 days. Dispose of the old gasoline in accordance to Federal, State, and Local regulations. 2. Start the engine and allow it to run until it stalls. This ensures that all gasoline has been drained from the carburetor. 3. Allow the engine to cool. Remove the spark plug and put 1 oz.
SECTION 9: TROUBLESHOOTING ENGINE WILL NOT START CAUSE ACTION Ignition switch is OFF Turn switch to ON Empty fuel tank Fill fuel tank Primer bulb wasn't pressed enough Press primer bulb fully and slowly 5-7 times Engine flooded Use starting procedure with choke lever in the RUN position Old gasoline Drain fuel tank / Add fresh gasoline Fouled spark plug Replace or clean the spark plug ENGINE WILL NOT IDLE CAUSE ACTION Air filter is plugged Replace or clean the air filter Old gasoline Drai
SECTION 10: SPECIFICATIONS ENGINE ENGINE Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 4-Cycle Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 cu. in. (26.2 cc) Clutch Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 11: PARTS LIST FOR PPN 41AD26CC401 2 1 3 4 18 19 20 21 22 5 8 26 24 23 25 6 28 27 91 7 12 45 29 9 13 41 46 30 10 31 32 40 11 14 35 15 38 33 42 43 44 39 47 34 16 53 48A 37 17 48B 36 49 54 90 52 87 55 57 89 87 88 50 56 51 86 79 60 78 61 58 80 77 72 59 70 76 74 62 75 73 63 84 64 92 93 85 65 71 70 94 81 69 83 82 68 67 66 Reissued 5/02 28
SECTION 11: PARTS LIST FOR PPN 41AD26CC401 Item Part No.
SECTION 11: PARTS LIST FOR PPN 41AD26CC401 4 8 7 6 10 1 11 9 2 17 3 18 12 5 19 13 14 Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Part No.
California / EPA Emission Control Warranty Statement; Your Warranty Rights and Obligations The California Air Resources Board, EPA (Environmental Protection Agency), and MTD Southwest Inc. (MTD) are pleased to explain the emission Control System Warranty on your 2000 and later small off-road engine. In California and the 49 states, new small off-road engines must be designed, built and equipped to meet the state’s stringent antismog standards.
MANUFACTURER’S LIMITED WARRANTY FOR: The limited warranty set forth below is given by MTD SOUTHWEST INC (“MTD”) with respect to new merchandise purchased and used in the United States, its possessions and territories. MTD warrants this product against defects in material and workmanship for a period of one (1) year commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in material or workmanship.
