Re: fuel line
did u ever mess with th magneto? what kind of spark plug? running the crappy chinese spark boot and wire?
i had a similar situation before. Had a spark but engine would not start. i looked down and saw my wires got disconnected at one point. plugged it and it started! Another incident I had was the spark plug. chinese spark plug wasnt giving me "enough" spark till i switched over to an NGK. Then it hapoened again after the spark plug and changed out the chinese boot and wire with an automotive one and never had a problem again.