MOTO1988 Yamaha G Series Piston & Ring Kit JR7-11631-00-A0 High

Description

Product Overview

The MOTO1988 piston and ring kit is a direct‑fit replacement designed for a wide range of Yamaha G series models, including G21A, G22A, G23A, and the U Max series. Constructed from forged aluminum and high‑strength steel rings, the kit provides superior sealing and durability. Each package contains one piston and a complete set of rings, matching the OEM specifications of part number JR7-11631-00-A0. The lightweight design (1.04 lb) and compact dimensions (4.8 × 4.76 × 3.46 in) make handling and installation straightforward.

Usage

This kit is intended for use in Yamaha off‑road and trail motorcycles that require a reliable piston replacement to restore compression and power. Whether you are rebuilding a 2004‑2009 G27A U Max or maintaining a 2007‑2013 YDRA The Drive, the kit fits seamlessly into the existing engine architecture. It is suitable for both seasoned mechanics and hobbyists who prefer a DIY approach, offering a cost‑effective solution without compromising on performance.

Why Choose Us

MOTO1988 has a reputation for producing OEM‑grade components that meet rigorous quality standards. Each piston undergoes a multi‑stage heat‑treatment process to achieve optimal hardness, while the rings are precision‑ground for a perfect seal. Our kits are backed by a 12‑month warranty and responsive customer support, ensuring you receive assistance throughout the installation process and beyond.

Key Features

• Exact OEM fit for Yamaha G series models eliminates modification needs
• High‑grade forged aluminum piston resists wear and heat deformation
• Precision‑ground steel rings provide superior sealing and compression
• Lightweight design improves engine balance and overall bike handling
• 12‑month warranty and dedicated after‑sales support for peace of mind

FAQ

Is this kit compatible with my 2008 Yamaha G28A U Max?

Yes, the kit is listed as compatible with the G28A U Max model years 2004‑2008, providing a direct replacement without any machining.

Do I need any special tools to install the piston and rings?

Standard piston ring compressors, a torque wrench, and basic hand tools are sufficient. Detailed installation instructions are included in the package.

What warranty does MOTO1988 offer on this product?

The kit comes with a 12‑month limited warranty covering manufacturing defects. Contact our support team for claim procedures.

Can I use this kit on a modified engine?

The kit is designed for stock engine specifications. For heavily modified engines, consult a professional mechanic to ensure proper fit.

How does this kit improve engine performance?

By restoring proper piston-to‑cylinder clearance and providing fresh, high‑quality rings, the kit improves compression, reduces oil consumption, and delivers smoother power delivery.