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6615-H3 Billet Flywheel for GX340 and GX390This finless flywheel is designed for the Junior Dragster & 1/8 mile Mini Bike engines. It has an adjustable hub that allows timing changes at 1-degree increments in as little as 90 seconds without the use of offset keys or having to take anything apart. No fins for methanol applications.
Will not work with stock recoil.
Note: Requires the use of the #555681 (or other Briggs PVL Coils). Coil sold separately. Click here for coil.*Picture is for reference only. Actual part may differ from picture. WARNING: No returns on flywheels that have been removed from packaging. Be sure to know what type of motor you have.