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.
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.
