Originally Posted by FreeWheeler
I've read some about how to find air leaks and where they occur, but I still have a question. I have seen suggestions that the cap that holds the throttle cable and carb slide in place is a source. I have seen it suggested that some kind of sealant should go on the cap threads.
1. How can this be when it is connected/inline to the same pipe as the air cleaner?
2. Does this blown head cover show signs of running lean from an air leak?
That might assist in keeping the cap from loosening , and that would be a something to consider . As for sealing it because it is letting air in even when it is secure , that sounds like overkill . That head shows signs to me of being rich . Is the head itself ruined for some reason or just the gasket ?