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  #17   IP: 172.95.97.58
Old 06-12-2018, 12:20 PM
Dave Neptune Dave Neptune is offline
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If an a-4 starts instantly it is way to rich. Be sure the choke is opening. You could also easily have an air jet plugged in the idle circuit or main sequence. Also check to be sure the flame arrester is clear.

A good running A-4 BY DESIGN with an updraft carburetor should take a few turns just to get fuel UP to the manifold then into the cylinders. Quick starts and fouled plugs indicate a very rich condition. Have you tried to adjust the idle air screw?

Dave Neptune
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