Naraku cylinder kit 180cc forged piston for GY6, Kymco AC

Here you will find a big bore cylinder kit for engines with forged pistons from Naraku.

• Technical details:
• 180cc big bore kit for GY6-based engines from 125/150cc  
• Bore: 63mm (so the crankcase has to be machined slightly to accommodate the cylinder)
• outer diameter of the cylinder liner (this protrudes into the crankcase) is 65mm
• can be used with original cylinder head
• with forged piston for more resilience and reduced friction values
• raised piston crown ensures more compression
• suitable for many air-cooled 4-stroke Kymco engines 125-150cc (maxi scooters) and Chinese import vehicles with 125/150cc GY6 engines (scooters, quads & buggies)

To get the full power from the cylinder, a cylinder head with larger valves can also be fitted for GY6 engines (not Kymco). For those who want more, a sports camshaft with modified timing is also available.

• Scope of delivery:
• 1x complete cylinder kit (new)

Here is a helpful link to the piston ring assembly:

http://www.youtube.com/watch?v=sS_99EB4KTw