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Old 12-19-2019, 10:07 PM   #18
Merc Cruzer
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Join Date: Jul 2010
Location: Conifer, Colorado
Posts: 2,431
Default Re: Hesitation when accelerating from stop - Holly 1901 carb

53MERC-CT,

Thank you for the explanation for the three holes. My book on the carb doesn't address them at all. I can see now why most cars use the center hole. Sounds like I need to get the book you use for carbs.

I have been doing the test runs, in temperatures of the 30's and 40's. It is supposed to get to the high 60's this Sunday, so I will get her out in warmer air for a run.

RalphG,

I have dual exhausts, so my original heat riser valve is gone. I do have the two heat risers on each side of the carb, but they are blocked off for summer, so the tabs need to go, until warmer weather.

It is a shame to waste the nice days and not drive it.
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