No Toil 3805 Pre-Oiled Air Filter fuel-air-carburetors-accessories 5:1 compression (w/ stock 85cc

5:1 compression (w/ stock 85cc heads) makes for a very streetable and dependable engine that also responds well to performance cams

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No Toil 3805 Pre-Oiled Air Filter fuel-air-carburetors-accessories 5:1 compression (w/ stock 85ccPre oiled and ready to go. Better airflow for greater horsepower. Superior foam strength for long life (40+ non toxic washes). Clean easily with No Toils biodegradable foam filter cleaner. Vehicle Fitment: 1988 1989 Yamaha YFM200 Moto 4 1988 Yamaha YFM225 Moto 4 1989 1991 Yamaha YFM250 Moto 4 1988 1991 Yamaha YFM350ER Moto 4 1987 1999 Yamaha YFM350FW Big Bear 4x4 1996 1999 Yamaha YFM350U Big Bear 2x4 1996 1999 Yamaha YFM400F Kodiak 4x4