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Old 03-30-2019, 11:31 AM   #21
Solo_909
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Join Date: Oct 2016
Location: NorCal East Bay
Posts: 409
Default Re: 1951 mercury carburetor choke adjustment

Quote:
Originally Posted by 51 MERC-CT View Post
To check one source of "stumbling". The normal position for the accelerator pump adjustment is the center hole on the plate. If it is on the center hole move the pin to the outer hole or if in the inner hole move one hole outwards. (use a screwdriver to pry away and drop into hole)


It’s on the center. Just for my knowledge what exactly does switching holes do to the acelerator pump?

Also why would it stumble only until I drive it hard and getting into higher RPMs and then clear up?
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