Posted by JRSutton on September 21, 2011 at 17:37:41 from (75.130.109.233):
In Reply to: 2606 won't start posted by bc on September 21, 2011 at 12:25:43:
The fact that it runs with starting fluid makes me think you're not getting enough gas into the engine through the carb.
If the timing is at least in the right ballpark, and you've got some kind of spark, you should be good enough to start.
Can you explain more what the original problem was? If you're leaking air into the manifold, that could certainly be a problem.
Aside from that, just because you cleaned the carb, doesn't mean you got all the little passageways truly clean, and it's also possible that you got junk lodged in there after you cleaned it from a dirty fuel tank/line. Might want to try again and actually poke out all the little holes.
The other possibility is that you're flooding the carb. All the cleaning in the world won't help a bad metering valve seat that lets too much gas in.
However, if it starts for a while on the starting fluid, it should draw out enough of the gas and clean up the plugs enough to run ok, even if it was flooded... but that's not an absolute.
I'd try starting it with the gas off, fully choked. If it does eventually start after a while, you can assume you had too much gas in there to beign with
If you didn't use a carb rebuild kit, I'd start there. Personally I consider the cost an eventual necessity anyway, and wouldn't consider it a waste even if it doesn't solve the problem.
It's also possible you just have bad gas. I'd drain it and put fresh gas in (save the old stuff of course, if it turns out to be bad you can still mix it in with good stuff). I'd put brand new fresh, high octane gas in just to rule that out, even though it's not likely the problem.
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