Re: H carb rebuild

Posted by Theman on June 16, 2005 at 06:51:59 from (65.248.77.5):

In Reply to: H carb rebuild posted by bhb on June 15, 2005 at 18:24:03:

You are on the right track. The brass tube (idle jet) is indeed 1/8" OD and threaded #5 NC (40 threads per inch). I had to drill and re-tap my carb because of the same problem. When you are finished, the new brass jet should nearly come up to the top of the hole. Functionally, the jet delivers fuel from the bowl past the throttle plate and is mixed with air controlled by the idle mixture screw. When you open the screw, more air mixes with the fuel to lean out the mixture. This means it works backward from your standard automotive carburetor idle adjustment.

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