LOS ANGELES SLEEVE Big Bore Ø80mm 740cc - Yamaha XS650 (Manufacturer Ref: YA132) — specially machined cylinder sleeve for Big Bore conversions on Yamaha XS650 twins. Made from chrome-moly alloy, it offers a robust wall surface and a precision ground outer diameter for accurate fitting in the engine block.

The sleeve's ports are cut and machined to strict dimensions and shapes to facilitate installation and ensure perfect alignment of passages (lubrication, cooling, and mounting). Ideal for roadster builds seeking mechanical reliability and good dimensional stability of the cylinder.

• Material: chrome-moly alloy
• Bore: Ø80 mm (Big Bore 740cc)
• Machining: precision ground outer diameter, ports cut to dimensions
• Compatibility: Yamaha XS 650 (years and models indicated below)

Check compatibility with your engine before installation — adaptation required with appropriate pistons, rings, and gaskets. Main compatible motorcycles: YAMAHA XS 650 S (1983), YAMAHA XS 650 (1981), YAMAHA XS 650 S (1982). Professional installation recommended to ensure proper clearance and engine geometry.