MAIN JET SET M5 PWK 140-158

Changes to the jetting are necessary to optimally tune your carburettor.

To make this easier for you, Naraku has put together various sets of carburettor jets suitable for all PWK type carbs.

Main jet set with sizes 140, 142, 144, 146, 148, 150, 152, 154, 156 and 158 for all PWK type carburetors.