twm442 I would NEVER use starting fluid around any motor except to start it. You are right are KABOOM with a motor running and a possible poor spark plug wire insolation of the outter cover. I have found that WD-40 doesn't always help with the finding of a vacuum leak, in some cases it swells gaskets or seals and stops the leak until it drys out or burns off.
Carb cleaners are better but back to the hot motor KABOOM thing. Saw a kid working on a hot motor looking for a leak and sprayed everything, 2 seconds later he was missing eyebrows, part of his beard, and front hair line.
Lucky he didn't loose a eye. I try and find most leaks with a stephoscope and my ears. I use the propane as a last trick. How is the flounder fishing in Quincy??
My dad used to go every year and did well. They now have limits on the fish?? They do down here but it is OK for the commercial to go crazy. They get a limit in tons, we get 5 or 7 fish. Cheaper to buy the fish at the fish market than go fishing on a charter boat. CG loves to check boats for over catching the limit and impound everything. 3-10 grand fines are being handed out in some towns, 2 guys lost there boats to the state for repeated law breaking. Stupid people, loss a 30-50 grand boat over $100.00 of fish at market price.
Rick L.