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Old 05-31-2026, 07:03 PM   #2
hueyhoolihan
Senior Member
 
Join Date: Dec 2024
Location: central coast california
Posts: 598
Default Re: engine will not run smoothly

my flathead does too when cold unless i have the choke set at exactly the right place. and will continue to be sensitive to the choke setting until it's completely warmed up. and even then, if i leave it on too long, it will create additional problems. it's a sensitive as a thirteen year-old ingénue. it's taken me a while to know where to set it, and when it needs to be adjusted.

IOW, i've found the choke to be much, much more sensitive on my '41 flathead than on any of the other manually choked engines i've owned. and i've owned a lot of 'em.

Last edited by hueyhoolihan; 05-31-2026 at 08:49 PM.
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