Engineered for the 1994-95 Yamaha YZ250, the L.A. Sleeve Two-Stroke Cylinder Sleeve (YA5258) is the ultimate remedy for damaged or worn-out factory bores. This high-strength chrome-moly alloy liner features an outside diameter precision ground for a flawless press-fit into your engine block. To ensure maximum flow and throttle response, the ports are pre-machined to exact OEM shapes, aligning perfectly with your cylinder's architecture. Designed with a 68mm standard bore that requires a final bore and hone to match your piston, this sleeve restores the high-compression seal necessary for both technical trails and open tracks. Get your Yamaha back to peak performance with this durable solution from Cheetah’s Powersports.
Features:
- Cylinder sleeve made from chrome-moly alloy
- Outside diameter precision centerless ground
- Ports cut to precision dimensions and shapes for ease of installation and port match-up
- Inside diameter must be bored and honed to size piston after installation
- Standard bore size 68mm
- Fits cylinder # 4JX and # 4MX
- Original cylinder bore is alloy-chrome plated, Nikasil, or electrofused.
- The cylinder must be bored to accept the new cylinder sleeve.
- For liquid cooled engine.
- Inside diameter must be bored and honed to size piston after installation.
- Product images may only represent the class of product and not the specific model.
