Namura .100 Over Bore Top End Kit for Honda FourTrax TRX200SX 1986-1988 67.5mm

.100 Over Bore Top End Kit for Honda

This .100 Over Bore Top End Kit is a complete replacement top end assembly for the Honda FourTrax TRX200SX from 1986 to 1988, featuring a 67.5mm piston for an oversize bore restoration. The .100 Over Bore Top End Kit restores lost compression and power in worn engines, making it an essential .100 Over Bore Top End Kit for ATV rebuilds.

Overview

This .100 Over Bore Top End Kit contains the piston, rings, wrist pin, circlips, and cylinder gaskets needed to rebuild the top end of a Honda FourTrax TRX200SX (1986-1988). It is designed for engines requiring a .100 oversize bore to clean up cylinder wear and restore factory compression. The kit is intended for Honda models and is a direct-fit replacement for the original top end components.

Built For Performance

• Piston bore size of 67.5mm for .100 overbore
• Includes complete piston, ring set, and wrist pin assembly
• Precision-machined cylinder gaskets included for a proper seal
• High-strength aluminum alloy construction for durability
• Direct replacement for 1986-1988 Honda TRX200SX top end

Fits These Machines

• for Honda FourTrax TRX200SX 1986
• for Honda FourTrax TRX200SX 1987
• for Honda FourTrax TRX200SX 1988

On-The-Job Use

• Rebuilding worn ATV engines that have lost compression
• Restoring power and performance to farm or trail-use TRX200SX
• Replacing damaged or scored cylinders after a top-end failure
• Routine engine overhaul during a full vehicle restoration

Specs At A Glance

Good To Know

Q: Will this top end kit fit a 1985 TRX200SX? A: This kit is designed specifically for 1986-1988 models; earlier years may differ in cylinder dimensions, so confirm your machine's year before ordering.

Q: Does the kit include a cylinder jug? A: No, this is a top end kit that includes the piston, rings, pin, circlips, and gaskets; the cylinder jug is re-used or sourced separately.

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