Walt, thanks for the advice its helped alot. Tony, I rebuilt the carb now it wont start unless I choke it by placing my hand over the carb. Once it starts I have to keep my hand somewhat over the carb to keep it from reving to infinity. I tried adjusting the carb door and it appears to be closed all the way; same idling issue. If I hold my hand like halfway over the carb it idles . Starter seems to be okay. Any ideas ?