
CYLINDER SLEEVE FOR YZ125 2003 — Manufacturer part number: YA5487
Brand: LOS ANGELES SLEEVE | Category: Cylinder Sleeve
This part is dedicated to the repair of motocross engines; it is designed to replace a damaged or worn cylinder wall on treated or sleeved engines. It is installed during an engine overhaul to restore a clean bore surface before fitting a new piston and rings. Sold individually, it is suitable for 5UN type cylinders.
Before installation, check the bore size and the condition of the bottom end. Installation requires mechanical tools and precise piston/sleeve clearance control; it is recommended to follow the workshop manual or to entrust the operation to a specialized workshop. Ideal for motocross riders looking for a reliable solution to get their YZ125 back on the track after wear or damage to the cylinder.