Hi Grumpy, have tried running it without exhaust,smoothed it out just a fraction and no popping but instead had little puffs of blueish grey smoke, i'm guessing i had them instead of the popping as no exhaust. Could this come back to valves, should i check the setting even though i have had to set them or take the head off to check they are sitting right,, but knowing it has good compression theres not any need is there.
Cant believe it,with all the stuff i have got laying around i dont have a float or spring to suit what i need, am going to town tomorrow will see if i can pick something up. I was looking for a float that would be a couple of mm's smaller then the original, is that the right way to go.
