64mm Valve Springs and Clips Rebuild Kit for GY6 50CC Parts Categories

Restore peak engine performance with this essential rebuild kit, specifically designed for GY6 50CC (139QMB/139QMA) scooter engines. This comprehensive set ensures your engine's valves operate with precision and reliability.

• 64mm Overall Length: Both intake and exhaust valve springs are precisely engineered to 64mm for optimal valve seating and lift.
• 5mm Shaft Diameter: Featuring a durable 5mm shaft diameter, these springs provide robust support and consistent operation.
• 18.5mm Intake Valve Diameter: Designed to perfectly match intake valve specifications, ensuring efficient air-fuel mixture control.
• 16mm Exhaust Valve Diameter: Engineered to fit exhaust valve requirements, promoting efficient expulsion of burnt gases.
• Complete Rebuild Set: Includes all necessary springs and clips for a full valve system overhaul, ensuring a perfect fit and function.

Compared to generic or worn-out components, this kit offers factory-spec dimensions and materials for a dependable seal and responsive engine. It's built to meet the demands of daily riding and high-performance tuning for your GY6 50cc motor.

Key Technical Advantages: Technology and Performance

This rebuild kit leverages precision engineering to deliver enhanced engine responsiveness and longevity. The consistent 64mm overall length and 5mm shaft diameter across both intake and exhaust springs guarantee symmetrical valve operation. The specific 18.5mm intake and 16mm exhaust diameters ensure optimal gas flow and sealing, contributing to improved horsepower and fuel efficiency for your GY6 50cc engine.