Cylinder Head Naraku Performance 50cc GY6 \/ 139QMA \/ 139QMB

Common problems with the original cylinder heads of Chinese 4-stroke engines are well known, and it is expensive and time-consuming to solve them. The Chinese replacement heads for GY6 engines are only of moderate quality, too.
A solution to this problem is the top class replacement head from NARAKU, produced in Taiwan according to ISO 9002. With its 39mm liner, this head is identical to the original head as it is already known from Kymco Filly. The cylinder head comes complete with mounted valves and springs and is thus ready to be installed.
The connection for the secondary air system has been eliminated for a purpose: This gives a slight performance plus and the head can be mounted to any GY6 50cc \/ Kymco 4-stroke scoot, no matter whether with or without SAS – if the scoot does have a SAS, it can simply be blinded off.

Fits 50cc GY6 4-stroke engines of Chinese manufacture and 50cc Kymco 4-stroke engines.
Without base and head gasket; please make sure to include them in your order if you need them. A suitable gasket set is available under “Replacement Parts”.