Originally posted by pttf
ok i think i found the problem. I noticed when the engine is running there are bubbles in the fuel line which are not moving. So i gather there is lack of compression somewhere. So this should narrow the problem which is causing the engine to run high. Any suggestion's
Check your tank, lines and filters - a leak in any of these will result in bubbles - especially if you have one of those cheesy priming buttons - they always leak. Also check to make sure your fuel isn't foaming.
Then double check the engine is sealed, carb, backplate etc.