Description
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. Note: Product images may only represent the class of product and not the specific model.
Why choose LA Sleeve, LA Sleeve Cylinder Sleeve for Yamaha 701 61X SuperJet/WaveBlaster/WRIII/VXR Pro (701cc 81mm)? This sleeve is engineered for riders and builders who want reliable performance without sacrificing serviceability. Its construction makes it ideal for freestyle, freeride, and closed-course racing on the legendary 61X platform.
- High quality chrome moly / cast-iron alloy construction for excellent wear resistance and heat stability.
- Precision centerless ground outside diameter to simplify machine work and ensure proper interference fit in OEM cylinders.
- Accurately machined port windows to maintain correct timing and easy port match up during assembly or performance porting.
- Boreable sleeve so future rebuilds are simple, cost effective, and do not require re-plating after hard riding.
- Manufactured in the USA by LA Sleeve, a family owned company with decades of cylinder sleeve experience.
- Ideal replacement for scored, seized, or overbored 61X cylinders needing a fresh, reliable liner.
Fitment and notes: Always verify clearances and piston size before final assembly. Professional installation and proper boring and honing are recommended for best ring seal and durability on part number YA-5187.
LA Sleeve cylinder sleeves are trusted by engine builders around the world for consistent wall thickness, clean machining, and predictable installation results in powersports applications.




