Namura Standard Bore Top End Rebuild Kit Size C for Yamaha YZ85 2019-2025 47.5mm

Standard Bore Top End Rebuild Kit Size C for Yamaha YZ85

This top end rebuild kit from Namura is a high-quality replacement for the Yamaha YZ85, providing everything needed to restore cylinder and piston assembly on 2019-2025 models with a 47.5mm bore.

Overview

The Namura Standard Bore Top End Rebuild Kit Size C is a complete solution for rebuilding the top end of the Yamaha YZ85 engine. This top end rebuild kit includes a piston, rings, wrist pin, and circlips, ensuring a reliable rebuild. Designed for Yamaha YZ85 models from 2019 to 2025, this kit uses a 47.5mm bore size to match OEM specifications.

Built For Performance

• Forged piston construction for high-strength and durability
• Plasma-coated ring set for reduced friction and improved seal
• Precision-machined wrist pin for smooth operation
• Includes all necessary circlips and retaining clips
• Designed for high-RPM two-stroke operation
• Bore size matched to standard factory specifications

Fits These Machines

• for Yamaha YZ85 (2019-2025)

On-The-Job Use

• Motocross racing requiring top-end refresh between events
• Trail riding and off-road competition
• Engine rebuild after piston seizure or wear
• Preventative maintenance for high-hour engines

Specs At A Glance

Good To Know

Q: What is included in this top end rebuild kit? A: The kit includes a forged piston, piston rings, wrist pin, and circlips – all necessary components for a complete top end rebuild.

Q: Can this kit be used with a modified cylinder? A: This kit is intended for standard bore cylinders. For oversized or modified cylinders, select a corresponding oversized kit from Namura.

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