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Needle point, fuel-air ratio

Posted: Mon Aug 12, 2024 11:19 am
by jaybee47
Which figure would provide a finer adjustment for the fuel-air ratio?
Needle valve point.JPG

Re: Needle point, fuel-air ratio

Posted: Mon Aug 12, 2024 11:36 am
by Daisy Mae
Finer/longer the taper the slower the change per twist...
Shorter the taper doesn't take much to twist full open...
Figure B = finer degree of adjustment, presuming threads being equal.