It seems all my issues revolve around freaking carburetors.I have a tecumseh LEV120-361502a on a craftsman mower. The problem is that it keeps leaking gas out of the Idle restrictor screw housing there is no O-ring to replace . I have found that the float level was of and have reset it using an 11/64 drill bit .I am wondering if this is the right size because I read on anothersite that it should be 7/32 or something like that. Any suggestions? Thanks for all the past help.