Flywheel Key

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20550 Fits GX160 & GX200. Depending on the supplier we use, the key you receive may be shorter than your stock key however it will serve the same purpose which is to align the flyw heel at a specific timing position. Timing key tuning info: Flywheel key can be filed to advance timing. Every 0.006" you file off is equal to 1* advance. Example: remove 0.048" for an 8* advanced timing key. See "Advance Timing in our Performance Basics section. Show more