42mm reed conversion kit for the Morini m01/m02/m03/m04 family of engines. Same design as the big 45mm kit but now 42mm! Fits most cases. Fun reed power without the headache of adapting the 45mm kit. 

Do note- either the reed OR the cylinder will need to be slightly modified for the reed to fall in place. Nothing you couldn't do with a file but a rotary tool would be easier.

Comes with cylinder, piston, pin/clips, ring, reed valve, intake, and gasket set.