Re: Frustrating little Cub

[JAY T. WALLS]

Hi, I would like to ad that the piston cylinder fit needs to be tight on the smaller motors. I’d say .003 skirt clearance on a cub and the rings need to tight on their butt gap also. I’d say.005 would be nice. The piston that is loose can be built up with Teflon coating today where knurling was the only way years ago. There is nothing you can do with poor fitting rings except replace.