It is the ethanol in the gas. It evaporates and what is left doesn't burn very well and is sticky. On my gas engines that I don't use very often I try to get gas without the ethanol and put "Sea Foam" gas treatment in every tank. I get about one carburetor a week that just needs the stale gas cleaned out of it. You need a good carb. cleaner too. I was using a cheap brand and if you checked the parts after they dried off they where still sticky. I use Gum out brand now and it seems to clean better. I even had a new tiller that was used once last fall. It had the kill switch on the spark plug. So when you killed it the engine draws gas in as it spins down. That raw gas gummed up the intake valve so bad by this spring that I had to remove the head and valve to wire brush the varnish off of it. The tiller would hit once and coast to a stop. Then the valve would slowly return and it would hit once again. I fear that in a few more years that our older gas engines are going to be hard to keep going with the gas available.
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Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
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