Thanks Joe, have had a look at the crank seals, no leak there. What i did notice though was that the carby body leaked a small amount of petrol. The g3 carby is made up of 2 halves separated by a gasket. I changed the gasket, lapped the carby, tightened the 2 screws as much as they could go but a small amount of petrol is still getting out which means there is a small gap there, could that be the air leak? I can't tighten the screw anymore, what can you do to make it air tight?
There are gasket sealants out there, not sure if they work well with petrol, anyone had any experience with them?
