Wiseco Std Piston Crankshaft Gasket Set for Yamaha YZ250F 2016-2018 77.00mm 13.5

Wiseco Std Piston/Crankshaft/Gasket Set for Yamaha

This Wiseco Std Piston/Crankshaft/Gasket Set for Yamaha YZ250F provides a complete engine rebuild package with a 77.00mm standard bore piston at 13.5:1 compression, a crankshaft assembly, and a full gasket set for 2016-2018 models.

Overview

This Wiseco Std Piston/Crankshaft/Gasket Set for Yamaha YZ250F is a full rebuild kit pairing a 77.00mm standard bore piston with a crankshaft and gasket set. It is built for motocross riders and engine builders refreshing 2016-2018 YZ250F engines that need renewed compression and bottom end integrity. Every part in the set is matched to work together for a straightforward rebuild.

Built For Performance

• 77.00mm standard bore piston matched to OEM cylinder dimensions
• 13.5:1 compression ratio for strong mid to top end power
• Forged piston construction for durability under race conditions
• Included crankshaft assembly for complete bottom end service
• Full gasket set covers top and bottom end sealing
• Designed for 2016-2018 Yamaha YZ250F applications

Fits These Machines

• for Yamaha YZ250F 2016
• for Yamaha YZ250F 2017
• for Yamaha YZ250F 2018

On-The-Job Use

• Top end rebuilds after compression loss or piston wear
• Bottom end service when crankshaft bearings or rods need replacement
• Race season engine refresh and preventative maintenance
• Motocross and off-road rebuild projects
• Shop and DIY garage engine work

Specs At A Glance

Good To Know

Q: Does the 13.5:1 compression ratio require race fuel? A: Higher compression ratios like 13.5:1 typically call for premium or race fuel, so confirm your fuel setup and jetting before running this piston.

Q: Do I need to measure my cylinder before ordering? A: Yes, always verify bore size and condition since this set uses a 77.00mm standard bore piston and cylinder wear may require machining or an oversize option.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.