The Wiseco Garage Buddy Complete Engine Rebuild Kit, part number wisPWR100-645, provides the essential components for rebuilding compatible Yamaha YFZ350 Banshee engines. Designed to simplify powersports engine maintenance, this kit combines precision-machined rotating and reciprocating components with the gaskets, seals, piston hardware, and assembly supplies needed for a complete top- and bottom-end rebuild. It is engineered for applications using a 64.50 mm bore and is suitable for select 1987–1996 Yamaha YFZ350 Banshee models.
The included complete crankshaft assembly features precision-machined crank webs for strength and durability, along with a copper-plated, heat-treated, and shot-peened connecting rod designed to reduce residual stress and promote smooth surface transitions. OEM-quality main bearings and a complete gasket, seal, and O-ring selection help support a reliable rebuild, while the Wiseco forged piston kit includes piston rings, wrist pin, and circlips. A small-end bearing is included for applicable two-stroke motorcycle configurations.
This Wiseco Garage Buddy kit also includes assembly lubricant and a complimentary Wiseco hour meter with mounting bracket, allowing you to track engine operating time and plan maintenance intervals more effectively. The complete component package helps reduce the time spent sourcing individual parts and supports an efficient installation when used with proper service procedures and vehicle-specific specifications.
The Wiseco Complete Engine Rebuild Kit is covered by a 90-day or 10-hour limited warranty against manufacturer defects. It fits 1987–1996 Yamaha YFZ350 Banshee applications. This product is not CARB approved; verify vehicle compatibility and applicable emissions requirements before installation.
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