Posted by CNKS on November 08, 2012 at 09:57:17 from (216.144.104.128):
In Reply to: Re: Farmall 300 Carb posted by Sparky2 on November 08, 2012 at 08:19:58:
The info is in the operators manual. But, you need to remember that the Super H and Super M up changed their carburaters. The starting point for the main jet screw is 5 turns out, it can be turned in for lighter loads if you don't need full power. The carb is supposed to be set as lean as possible and still pull the load that you want it to. You do not want black smoke, and due to the design I doubt if you can get it. Jim is correct that you want to be able to pull the throttle back without stumbling, but my experience says that it will not pull any thing with the leanest setting you can get, in fact my Super H will not even go up a slight incline pulling nothing set like that. So, you will have to experiment. Instead of starting with about 3 turns out and increasing the mixture a half turn at a time, I start with 5 turns out and go a half turn in until it loses power.
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