ENGINE PARTS - MODEL 780r 2-CYCLE GAS TRIMMER 3 41 (Serial Number 810205234 and greater) 4 5 19 6 18 17 7 37 11 38 39 3 21 13 8 14 9 2 41 22 10 1 52 20 12 23 26 15 42 28 50 48 40 27 16 32 29 51 30 24 33 49 44 34 31 32 47 46 36 45 43 32 25 Item Part No. Description Item Part No. 1 2 3 4 5 6 7 8 182059 180350 180351 180352 182061 182070 182060 182062 34 35 613103 181443 9 10 11 12 13 14 15 16 610675 181860 181558 182063 684451 181498 612115 180026 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 612134 181438 181559 181168 682039 145308 153520 181861 182064 180929 181065 181597 613102 611061 181441 181442 181079 Air Cleaner/Muffler Cover Assembly (includes 2 & 41) Air Cleaner Filter Carburetor Mounting Screw Assembly Wavey Washer Choke Lever Assembly (includes 6) Choke Knob and Screw Choke Lever and Plate (includes 5) Carburetor Assembly W/Limiter Caps (includes 9 & 21) Carburetor Gasket Carb Mount Screw Primer and Hose Assembly Carb Mount Assembly (includes 10) Reed Assembly Power Shaft Assembly Carburetor Mount Gasket Crank Case Service Assembly (includes 10, 14 & 24) Rear Mounting Pad Fuel Tank Assembly (includes 19-21) Fuel Cap Assembly Fuel Return Line Fuel Line Assembly Front Mounting Pad Shroud Assembly Shroud Screw Shroud Extension and Stand Flywheel Assembly Spacer Recoil Pulley Assembly Recoil Spring Rope Guide Pulley Retainer Assembly Switch Assembly (includes 43) Pull Handle 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 * * * * * * * * * * * * 35 41 Description Rope Starter Housing Assembly (includes 28-34 & 43) 181862 Housing Screw 181074 Clutch Washer 181445 Clutch Rotor Assembly 153592 Clutch Drum Assembly 180098 Clutch Cover Assembly 181345 Cover Screw 153597 Upper Clamp Assembly 180036 Wire Lead 181937 Module Assembly 610311 Spark Plug 182065 Exhaust Gasket 182066 Muffler Assembly (includes 48) 147575 Muffler Mounting Bolt Assembly 181622 Cylinder Assembly (includes 52) 684449 Piston and Rod Assembly 610674 Cylinder Gasket 181870 Cylinder Bolt 180011 Engine Gasket Kit 180602 O.E.M. Carburetor Repair Kit (Walbro) 180090 O.E.M. Carburetor Repair Kit (Zama) 181873 Gasket Diaphragm Repair Kit (Walbro) 180091 Gasket Diaphragm Repair Kit (Zama) 180530 Piston Ring 181623 Short Block Assembly (includes 10, 14, 16, 24, 45, 49-52) 610676 Flywheel Key 181501 Starter Housing Screw Set 610309 Crankcase Seal 181599 Clutch Springs (Qty. 2) Items Not Shown Issued 4/99 BOOM AND TRIMMER PARTS - MODEL 780r 2-CYCLE GAS TRIMMER (Serial Number 810205234 and greater) 1 1 9 1 Part No. Description 182079 12 Throttle Housing and Trigger Assembly (includes 2 & 3) Throttle Trigger Spring 2 3 4 5 6 Throttle Trigger Throttle Cable Assembly 13 Harness Clip 14 Drive Shaft Housing Assembly 15 J-Handle Assembly (includes 8 & 9) Grip 16 Tube Closure Handle Bracket Assembly (includes 11-16) Screw Upper Handle Clamp Middle Handle Clamp Lower Handle Clamp Nut 20 Anti-Rotation Screw Flexible Drive Shaft Shield Mounting Screw Shield and Blade Assembly (includes 20) 19 Blade Assembly Shield Mount Screw Assembly (1 piece Gearbox) Shield Mount Screw Assembly (2 piece Gearbox) Gearbox Mounting Hardware and Grease Plug (1 piece Gearbox) Gearbox Mounting Hardware (2 piece Gearbox) 20 Anti-Rotation Screw (2 piece Gearbox) 1 piece Gearbox Assembly (includes 21a, 22a, 26a & 36) 2 piece Gearbox Assembly (includes 21b, 22b, 26b & 36) 34 Blade Shield Blade Driver (1 piece Gearbox) Blade Driver (2 piece Gearbox) Retaining Washer Spool Shaft Outer Spool and Eyelet Assembly Retainer Spring 27 Inner Reel 36 Bump Head Knob Assembly 4-Tooth Blade (includes 35) Blade Cover Nut Blade Retaining Kit (includes 27 & 36) Locking Rod Tool Shoulder Harness 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21a 21b 22a 610314 181556 182068 610327 147486 180286 612831 612021 683295 181811 181812 181813 181814 181815 145569 181817 683304 683299 682061 147539 182200 147677 22b 23 24a 24b 25 26a 26b 27 28 29 30 31 32 33 34 35 36 * * * 182195 145569 147488 182193 147492 147489 182196 147490 612483 683301 612026 610636 147495 180814 145873 613231 181699 180014 613226 682075 41 39 22b 7 11 Item 40 24b 8 22b 37 23 10 42 38 26b 21a 17 21b 26a 22a 21a 18 22b 24a 23 25 35 21b 26b 27 28 29 2 Piece Gearbox Assembly Parts – Item 24b 37 38 39 40 41 42 182191 182192 182194 182199 182198 182197 Left Housing Right Housing Pinion Gear Assembly Output Shaft Bushing Output Shaft Gear Output Shaft Assembly (includes 40 & 41) 30 31 32 Optional Accessories * * * * * 612454 Replacement Line, 0.095 Diameter 147345 Reel and Line Assembly 147498 Bump Head Assembly (includes 28-33) 147543 Ryobi 2-Cycle Oil Items Not Shown Issued 4/99 33