BOLD MAGENTA part numbers are new for 2023 ENGINE PARTS-UNLIMITED.COM STREET | 2023 1355 DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. SEE PAGES 4-5 FOR IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. HYPER RACE KIT • Complete 70cc cylinder kit • Features a redesigned cylinder head, lighter flat-head piston and special porting to increase power • Race crankshaft is made of special steel that is machine-forged for added strength and features a 12mm wrist pin • Lighter connecting rods have full rounds and special needle bearings to reduce crankshaft volume • Full exhaust system included • Center stand must be removed when race pipe is installed • Included 19mm Dell’Orto carburetor provides optimal airflow to match the increase in engine performance • Replacement carburetor and throttle cable available separately • All necessary gaskets included 70CC BOLT-ON BIG BORE CYLINDER KITS FOR SCOOTERS • Kits come complete with aluminum cylinder (with a nickel carbide-plated 47.66mm bore), cylinder head, piston assembly (piston, rings, 10mm wrist pin and circlips), carbon reeds and all required top-end gaskets • Optional high-performance crankshafts (sold separately) replace OEM and are manufactured to Athena’s highest standards WRIST PIN BUSHINGS FOR TRIUMPH 650/750 63-83 • Machined from solid proprietary bronze alloy bar stock with an exceptional Rockwell hardness rating • Highest-quality wrist pin bushing available • Sold each • 0.814”OD x 0.688” ID; 1.031” overall length • Made in the U.S.A. FITS MODEL BIG BORE KIT SUG. RETAIL CRANKSHAFT SUG. RETAIL REPLACEMENT TOP-END GASKET KIT SUG. RETAIL MALAGUTI F10 (air cooled) 0931-0077 $211.95 0921-0020 $176.95 0934-0639 $10.95 F15/Italjet Dragster (liquid cooled) - - 0921-0020 176.95 - - YAMAHA BW/Zuma1 98-01 (vertical engine) 0931-0076 211.95 0921-0019 176.95 0934-0638 10.95 Vino 50/Jog/Zuma2 02-05 (horizontal engine) 0931-0077 211.95 0921-0020 176.95 0934-0639 10.95 HIGH GEAR BUSHINGS FOR TRIUMPH 650 63-72 • Replace single, OEM-style bushing • Maintain bearing surface while the gap between each bushing provides a large cavity for oil to pool, aiding in lubrication of the shaft • 0.910”OD x 0.810” ID; 1.100” overall length FITS MODEL PART # SUG. RETAIL YAMAHA Jog/Vino/Zuma 02-05 (horizontal engine) race kit 0903-0617 $1,092.95 Repl. 19mm Dell’Orto carburetor 1002-0031 215.95 FITS MODEL PART # SUG. RETAIL YAMAHA (CONT) Throttle cable 0650-1034 $28.95 REPLACEMENT PISTON KITS (FOR ALL SCOOTER MODELS LISTED ABOVE) SIZE PART # SUG. RETAIL Std. 0910-0581 $48.95 + .01mm 0910-0582 47.95 PART # SUG. RETAIL 0923-0318 $16.95 REPLACEMENT REEDS DESCRIPTION PART # SUG. RETAIL Repl. reeds for PART #0931-0077 1008-0280 $12.95 Repl. reeds for PART #0931-0076 1008-0281 14.95 PART # SUG. RETAIL 0926-2854 $23.95 • Replacement top-end gasket kits and piston kits also available separately NOTE: It is recommended that Athena’s 17.5mm or 19mm Scooter carburetor be used with these bolt-on big bore kits. See Fuel Systems section. 0934-0639 0921-0020 0931-0076 0910-0582 0903-0617
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