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There are no more items in your cartFor installation this set to Yamaha 3WF Jog90 crankcase boring is not required.
Pay attention: to install this set to 3KJ Jog50 crankcase enlarging is required.
Big bore kit for Yamaha Jog90 3WF engine upgrade to 105cc.
It includes: ceramic cylinder kit 54mm, cylinder head, long stroke crankshaft 44mm, racing clutch, variator, long belt, torque driver with high angle grooves, spring 1500 RPM, bigger manifold, carburetor 28/29mm, air filter.
For installation this set to Yamaha 3WF Jog90 crankcase boring is not required.
Pay attention: to install this set to 3KJ Jog50 crankcase enlarging is required.