JD Seller, My 2004 20 hp kohler has 1500 hours on it. I bought it used with 400 hours on it. The left cylinder plug was fouled out. Replaced it, but the left side would carbon up. Never burns oil. I did a leak down test, showed good. So I would rotate spark plugs. Put the left side in the right side, where the right side would burn the carbon off. About a year later I discovered the carb needed cleaned. That somewhat fixed the carbon on the tip of plug, but not everything. I no longer have to rotate plugs.
I just wish the carb had adj jets. Engine would diesel and run backward when I shut it off after a good workout.
Now I'm experimenting with making 94 octane E15. That seems to help cool things down. Still not 100% there, but an improvement. No loss of power, seems to like what I've done.
Now I have something weird happening. Ever hear of the kill wire on the mag not working? The kill wire on just one coil works, other doesn't. So when I turn key off, engine keeps running on one cylinder. I replaced the wires going from switch to mag coils. Still runs on one cylinder. I removed the kill wire from switch, shorted out kill wire, same problem, so it's not my switch.
My tractor came with a gas solenoid valve. When I turn the key off engine runs out of gas in 5 seconds, no way to diesel. George
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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