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We're ready to torch this 656. Help please!!!!
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Posted by BRSIL on April 26, 2006 at 15:26:37 from (205.188.116.133):
We overhauled this gas 656 with a standard trans this winter and it runs great. We use it as a loader tractor 99% of the time, but this spring we decided to pull a disk with it and after working it a couple of minutes it looses power, pops and bangs, then dies. We threw it on the dyno to try and replicate the loaded conditon and sure enough, a minute or two on the dyno and she looses power, pops thru the carb, and dies. Unless you put her right back to idle she will die. Here"s what we done so far. We double check all ignition system, points, plugs, cap, rotor, mechanical advance, coil, and that all has checkout fine. We have had the carb apart 6 times double checking everything and cant find anything wrong with it. We have a bunch of old part left over for one of these carb so we start changing things inside. It seems to us that it is starving for fuel. We checked the fuel supply from the tank, sediment bowl, and threw the needle and seat and that all seems to be fine. We drilled out a old seat to increase fuel volume and it seem to help but instead of dying after 2 minutes it dies after 4 minutes. The tractor is also low on power, it only dynos at 58HP. The thing runs great as a loader tractor no problems at all, untill you put a heavier load on it. Any help will be much appreciated.
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