Glixal GY6 80cc Big Bore Cylinder Kit 47mm — Complete Rebuild with Piston & Gaskets

Glixal ATMT1-008 is a complete 47mm big-bore cylinder rebuild kit that upgrades GY6 50cc engines to an 80cc performance displacement.

This high-quality cylinder kit is built to replace worn GY6 49–60cc components and deliver greater displacement, improved throttle response, and longer service life for many Chinese-made scooters and ATVs. Supplied as a full rebuild package, the kit includes the machined aluminum cylinder, matching piston and rings, wrist pin and clips, gaskets, stud hardware, and seals so you can swap parts without sourcing additional components.

How does this kit increase engine performance?

By raising the bore to 47mm and supplying a compatible high-compression piston, the kit increases total cylinder volume to roughly 80cc. The larger displacement allows the engine to ingest and burn a greater fuel/air charge per cycle, producing stronger low- and mid-range torque for quicker acceleration off the line.

• 47mm inner cylinder diameter for 80cc displacement
• Precision-machined piston and rings for improved sealing
• Includes gaskets and studs to maintain proper compression
• Designed for GY6 49–60cc platform compatibility

What components are included, and why does that matter?

The Glixal kit ships as a complete rebuild bundle so you avoid compatibility mismatches and extra sourcing. Every critical wear item is included, from the piston and rings to intake and exhaust studs, letting a mechanic or DIY installer complete the job in one session.

• Cylinder, piston, piston pin, and pin clip
• Piston rings and valve oil seal for reliable sealing
• Full set of gaskets, tensioner gasket, and exhaust gasket
• Intake/exhaust studs and exhaust nut to reinstall hardware

Which scooters and ATVs does this fit?

This kit is engineered for the common Chinese-made GY6 platform: most 49–60cc GY6 engines can accept the 47mm bore upgrade with minimal modification. Popular compatible brands include Jonway, JMStar, Roketa, Sunl, Tank, Peace, and Taotao, but you should verify head and crank clearances before installation.

• Intended for GY6 49cc–60cc engines
• Common fits: JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO
• Check crankcase and head clearance during installation
• May require rejetting or carb tuning after upgrade

What should I know before installing the kit?

Installation requires basic engine teardown skills and standard tools. Inspect the crankshaft, bearings, and head for wear; replace any worn parts to avoid premature failure. After assembly, set correct timing, valve clearances, and adjust carburetion for the larger displacement to ensure smooth running.

• Requires engine disassembly and mechanical experience
• Inspect crank bearings and seals before fitting
• Rejet carburetor and tune ignition for optimal performance
• Use supplied gaskets and torque specs for reliable sealing

Who is this for? The Glixal ATMT1-008 47mm 80cc cylinder kit is aimed at riders and mechanics who want a reliable big-bore upgrade for Chinese-made GY6 scooters and lightweight ATVs. It's ideal for experienced DIYers, repair shops, and enthusiasts who prefer buying a full rebuild package to avoid parts-mismatch and minimize downtime. If you value a complete kit with quality piston rings, matched hardware, and clear fitment for common GY6 models, this upgrade delivers a practical path to stronger acceleration and refreshed engine life.