Naraku 09311173 Cylinder-piston kitRef : NARK00089A / 09311173

Manufacturer's ref: NK102.76.2 — Brand: NARAKU

70 cm³ cylinder kit for Minarelli horizontal liquid-cooled (LC) engines. Designed for urban riding and daily use, this cast iron kit enhances acceleration and responsiveness compared to a 50 cm³ configuration while remaining compatible with Minarelli LC engine architectures.

• Complete cast iron body, ready to mount on the original cylinder head.
• Piston equipped with a molybdenum coating: effective protection during the running-in period (this coating wears off with use).
• Supplied with pin, clips, rings, and gasket set as illustrated.
• Compatible with original exhausts and performance silencers.

Installation tips: if you keep the original carburettor, plan for a jet approximately 7 to 10% larger. To make the most of the kit, NARAKU recommends a carburettor of 17.5 to 19 mm. The original cylinder head is reusable, facilitating power increase without heavy modifications.

This kit is aimed at users looking for a simple and reliable upgrade for the city: sharper starts, better acceleration, and a more dynamic ride in daily use. Common compatibilities: YAMAHA Aerox/Ns 50, MBK Nitro 50, BETA Ark 50 LC (check engine compatibility before purchase).