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Re: Problem with a Kohler 12 Horse
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Posted by Jim S. on May 16, 2003 at 07:47:47 from (206.166.252.100):
In Reply to: Problem with a Kohler 12 Horse posted by Red Dave on May 14, 2003 at 18:34:37:
Here's the fuel drill: 1.) Remove fuel line 2.) Open valve 3.) If gas runs out line strongly, yer OK to there, replace line 4.) Start engine and squirt gas in carb, as explained before. If it runs OK that way, you have a blocked carb inlet or main jet. Electrical checks: 1.) Check point gap. 2.) Be certain points are NOT dirty 3.) Did you for some reason remove the wires from coil? If so, wire to + terminal is the one from the switch. Wire to - terminal goes to points. If you reverse them, you will get these symptoms. 4.) A condenser can quit after it gets warm, gets a short and quits. But you swapped that. 5.) REPLACE THE PLUG WIRE. You can get singles at places like O'Reilyy's Auto Parts for $4 that will work with Kohlers. Frequently overlooked. If you are getting shorts in the wire, raw gas enters the muffler and it will backfire. Could also be a sticking exhaust valve. Suspect that especially if it runs good til it warms up. The valve sticks, that kills the engine, raw gas is pumped directly into the muffler and it backfires. Classic sticky exhaust valve symptom. To fix, remove valves, clean stem and guides of both, inspect valve seat and valve unbrella for wear. If they are OK, relap valves, reinstall, reset lash, replace cover and head and all, and go.
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