139QMB 63cc Cylinder Kit Naraku V.2 - Complete race cylinder upgrade by Naraku Scooter Parts 63cc for GY6, China 4T QMB139, Kymco 50 2V
With the latest V.2 cylinder kit series from NARAKU, we can offer a product that has been further developed in many details. Especially for the sensitive running-in phase of the cylinder, the piston was provided with an extra molybdenum coating. The cylinder with 44mm bore and 63cc is a lively cylinder with a lot of driving fun and is extremely easy to tune.
On the drivetrain no changes need to be made. If necessary, only the carburetor main jet should be slightly enlarged, but in most cases this is not necessary.
Fits all 2-valve 139QMB/QMA engines.
With the latest V.2 cylinder kit series from NARAKU, we can offer a product that has been further developed in many details. Especially for the sensitive running-in phase of the cylinder, the piston was provided with an extra molybdenum coating. The cylinder with 44mm bore and 63cc is a lively cylinder with a lot of driving fun and is extremely easy to tune.
On the drivetrain no changes need to be made. If necessary, only the carburetor main jet should be slightly enlarged, but in most cases this is not necessary.
Fits all 2-valve 139QMB/QMA engines.
![top end gasket set NARAKU [44,00mm]](https://www.racingplanetusa.com/images/gross/NK100.39_1.jpg?language=en&shop_ID=1 "top end gasket set NARAKU [44,00mm]"){kind=small}
