MOTOJOY Yamaha YZ 80 Big Bore Cylinder & Piston Kit Barrel Bore Jug Block Piston Rings 47.5mm Nikasil YZ80 1993-2001

‘Motojoy’ 47.5mm Big Bore Cylinder & Piston Kit – Yamaha YZ 80 (1993–2001) 

Rebuild your engine with confidence using the Motojoy Cylinder Kit, designed specifically for Yamaha YZ 80 models from 1993 to 2001. Making it an ideal solution for full top-end rebuilds on modern two-stroke engines.

This kit includes:

• Cylinder Barrel (Nikasil Plated)
• Piston & Rings Set (Cast)
• Piston Pin & Circlips
• Gaskets

Featuring a precision 47.5mm bore with a durable Nikasil coating, the cylinder provides excellent wear resistance, reduced friction, and efficient heat dissipation. Manufactured by Motojoy to meet OEM specifications, this kit ensures accurate piston fitment, stable compression, and smooth, reliable power delivery across trail, enduro, and race conditions.

Key Features:

• Direct Replacement for Yamaha OEM Parts: 4ES-11311-30 + 4GT-11311-10 + 4GT-11311-00

• Fits Yamaha YZ 80 models from 1993 to 2001

• 47.5mm bore with high-quality Nikasil coating

• Manufactured by Motojoy

• OEM-spec design for precise fitment and easy installation

• Improved heat control, durability, and engine longevity

A dependable and cost-effective Yamaha YZ 80 cylinder kit for riders looking to restore performance, reliability, and confidence in their engine rebuild.