RE: Life of a glow engine
Hi khozu,
If what you are saying is that the engine runs ok for 3/4 of the tank capacity then, I don't think you have a problem with the engine. That being said when I run into this kind of a problem I disassemble, inspect, clean and reassemble the engine and complete fuel system. I suspect you have a problem with the fuel tank lines. A pinhole in the pickup line (in the) tank will produce exactly the problem you are talking about.
Darren