I see a whole assortment of ideas. With my Gravely Commercial C-10 machine it was driving me crazy. It is a magneto coil under the flywheel type Kholer K series engine. In cold weather I was toast because it had the snow blower on it. You need to try HI-Test gas for a few weeks. Drain the tank and pour in several gallons of hi-test. Set the air mix screw and main jet correctly for a higher umph gas. I have my magneto on the "L" Gravely machine set to klick just before TDC by maybe 2 degrees. The Commercial Gravely with the Kohler engine in winter wouldn't start at all in real cold weather. Changed to 5-20 synthetic blend oil. But the next step fixed it. Bought 5 gallons of 100 octane gas at the airport. Machine starts everytime you push the button. Like magic. All of my lawn and Garden tractors I only run Hi-Test .Please Try it. As others have said you need to find the throttle, choke, and lolliop set of magic settings.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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