Description
Yamaha Blaster Crankshaft Kit – Rebuilt OEM
This Yamaha Blaster crankshaft kit combines a professionally rebuilt genuine OEM Yamaha crankshaft with bearings, sealing components and locking hardware for bottom-end assembly.
What’s included
- Rebuilt OEM Yamaha Blaster crankshaft
- KOYO main bearings
- Bottom-end gasket and seal set
- Clutch hub lock washer
- Balance shaft lock washer
- Crankshaft key
- Kick idle gear snap rings
Fitment and component identity
For 1988–2006 Yamaha YFS200 Blaster engines.
The crankshaft is a rebuilt original Yamaha component. The main bearings are manufactured by KOYO and supplied through Wiseco. This is a KOR-selected package containing components from multiple manufacturers.
Planning your rebuild
Inspect the crankcases, transmission, balance shaft and related components before assembly. Repair damaged bearing seats, sealing surfaces or threads before installing the replacement parts.
Use the Yamaha service manual for crankshaft installation, locking hardware, tightening specifications and final checks. After assembly, verify engine sealing with a Yamaha Blaster leak down tester.
Shop more Yamaha Blaster parts at The Blaster Store.
Questions about your rebuild? Contact KOR or call (860) 230-5003.









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