Posted by Dave H (MI) on September 12, 2007 at 10:12:33 from (64.12.116.73):
Still trying to get my mind around a few things so I can solve my starting issues. Tractor was inside last night so I thought my starting troubles would be at an end but they are not. Hit the starter this AM and, once again, it cranked and cranked but no sign of any ignition. Then a pop and some white smoke, followed by a increasing pops and eventually a start with lots of white smoke. Liquid sprays out from around the base of the muffler onto the hood. I ran a finger thru it and it is gas, not water. It dries quick so I don't think there is water in it anymore....but why would gas not fire in the presence of spark unless maybe, two much gas?
My own logic (and others) tells me to check to see if there is spark but of course there is because it runs. I just timed the engine a while back and got it starting great, rebuilt the carb and it starts like described. Why would there be no spark for 20 seconds and then suddenly spark? This is the puzzle I cannot get around.
OR...it was mentioned the float was set too high. Is it possible that this puts too much gas in the mix and overwhelms the spark making it not fire? Then one happens to catch and the engine slowly evens out while blowing the excess gas (the liquid) and vapors (the smoke) out the exhaust?
Can't work on it today but I am thinking about it a lot. Either of those two ideas make any sense? The spark idea seems like a long shot to me but the presence of liquid gas in the exhaust seems to me like I may be drowning my spark. Am I starting to make sense?
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