or the exhaust valve is burned out. When I pulled the head on my 4-cyl
140 the #4 cylinder had a big V-notch burned in the valve, and a burnt
gasket between 2 and 3. Head was warped out about 10 thousanth's. New
valves, seats, and gaskets and planed. I havent put it together yet,
but I'm looking forward to having it run by the weekend.

Tim