[. . . ] [. . . ] 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, 46, 50-53) 610676 Flywheel Key 181501 Starter Housing Screw Set 610309 Crankcase Seal 181599 Clutch Springs (Qty. 2) Items Not Shown Issued 10/98 BOOM AND TRIMMER PARTS - MODEL 790r 2-CYCLE GAS TRIMMER (Serial Number 810046371 and greater) 1 1 9 11 8 7 12 10 2 3 4 5 6 18 13 19 20 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. 182079 610314 181556 182068 610327 180339 181099 612831 612021 683295 181811 181812 181813 181814 181815 145569 181616 182057 181617 181618 181886 180804 613300 683304 683299 682061 147539 147677 147488 147492 147489 147490 612483 683301 612026 610636 147495 180814 145873 613231 181699 180014 613226 682075 Description Throttle Housing and Trigger Assembly (includes 2 & 3) Throttle Trigger Spring Throttle Trigger Throttle Cable Assembly Harness Clip Upper Drive Shaft Housing Assembly J-Handle Assembly (includes 8 & 9) Grip Tube Closure Handle Bracket Assembly (includes 11-16) Screw Upper Handle Clamp Middle Handle Clamp Lower Handle Clamp Nut Anti-Rotation Screw Click-Link Coupler (includes 18-21) Screw Bolt Adjustment Knob Knob Retaining Nut Lower Drive Shaft Housing Assembly Lower Flexible Drive Shaft Shield Mounting Screw Shield and Blade Assembly (includes 26) Blade Assembly Blade Shield Mounting Hardware Mounting Hardware and Grease Plug Gearbox Assembly (includes 28, 31, 32 & 41 Blade Shield Shaft Bushing Retaining Washer Spool Shaft Outer Spool and Eyelet Assembly Retainer Spring Inner Reel Bump Head Knob Assembly 4-Tooth Blade (includes 40) Blade Cover Nut Blade Retaining Kit (includes 32 & 41) Locking Rod Tool Shoulder Harness 14 15 16 17 21 22 23 27 24 26 28 29 25 30 26 29 40 39 31 32 32 41 33 34 35 36 37 Optional Accessories * * * * * 612454 Replacement Line, 0. 095 Diameter 147345 Reel and Line Assembly 147498 Bump Head Assembly (includes 33-38) 147543 Ryobi 2-Cycle Oil Items Not Shown 38 Issued 10/98 [. . . ] [. . . ]