Posted by Jason IH on April 15, 2011 at 04:20:16 from (99.160.63.208):
I rebuilt my Zenith carb # 12613 A. Not the first one I have rebuilt, but also not a pro. They only had a "economy" carb kit for it. I cleaned it all up, and rebuilt it, then mounted it back up. The tractor started without choke, right up. If I move the throttle up, the tractor rises up in rpm, but if I lower the throttle, the RPM's won't lower to LOW. The RPM's will lower from high, but not low. I turn the idle screw in and out and it doesn't change anything. What is wrong? My H I can get it so low, that it will sit there and just HUmmmmmmmmmmmmmmmmmmmmm and puff smoke circles. SO whats going on? Any ideas?
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Today's Featured Article - A 1937 John Deere Unstuck - by Gary Hickman. Here is my story of how I got the pistons out of a 1937 JD B that the engine had been stuck for about 14 years: About 12 years ago my Dad gave me one of the tractors I ran as I was growing up on our farm in central Nebraska. The engine on this tractor, a 1937 John Deere "B", had been stuck for 2 years before he gave it to me. This last spring (1999) I hauled the tractor to our 2 acre lot in St. Libory Nebraska where it joined my antique machinery collection, at that time a 1929 Caterpillar T
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