Ok.. so it's not what you're thinking.
I mentioned that I had a compression problem to the mechanic up the road. He said to try this trick.
If it's carbon build-up in the valves, get the engine running and heated up. Find a vac-line and put it in a mason jar with about a half quart of water. Let the water be drawn into the engine and it will "steam clean" it. It'll blow a bunch of steam all over and probably run pretty bad while the water's being pulled through, but it "should clear out any carbon build-up in the valves."
I offer this up to the 'Bolt. Is it worth a shot?
Fire away
-J
