Naraku 09310921 Cylinder-piston kitRef : NARK00292A / 09310921

Manufacturer's ref: NK102.35 — NARAKU 70 cm³ cylinder kit for air-cooled Peugeot engines (horizontal engine). Designed for urban scooters, this cast iron kit offers a simple and reliable increase in engine capacity for daily use.

• Compatibility: air-cooled Peugeot 50 cm³ engines, horizontal configuration (e.g. Citystar 50 AC).
• Kit contents: cast iron cylinder, piston with molybdenum coating, pin, clips, rings, and gaskets.
• Piston coating: molybdenum film to protect the piston and cylinder during the running-in period; this coating wears off over time.
• Exhaust: suitable for both original exhausts and performance silencers.
• Carburation advice: if you keep the original carburettor, increase the main jet by about 7–10%; a carburettor of 17.5 to 19 mm is recommended for optimal performance.
• Important note: for proper installation, the optimised reference NK102.42 must be installed inside.

This Naraku 70cc kit represents a robust solution for those looking to improve acceleration and responsiveness of the scooter in urban use, while remaining based on a simple installation. Follow the running-in procedures and carburation adjustments to achieve clean operation and maximum longevity of the cylinder-piston assembly.