Author Topic: Question on needle and seat size  (Read 1514 times)

Offline Frank400

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Question on needle and seat size
« on: August 31, 2015, 06:34:40 PM »
May sound like a stupid question, but does the size of the needle and seat have an influence on part throttle cruising and heavy load primary ?  I'm talking stock  street engine here.

Offline Cliff Ruggles

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Re: Question on needle and seat size
« Reply #1 on: September 08, 2015, 04:38:26 AM »
The size of the hole can have a very minor impact on fuel level at any float setting or fuel pressure, so yes.

It can also effect the fuel level at heavy load or full throttle.  If the carb doesn't stay full then fuel delivery to the engine will change.....Cliff

Offline Frank400

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Re: Question on needle and seat size
« Reply #2 on: September 10, 2015, 06:14:37 PM »
Ok thanks Cliff.  Makes sense.  Frank.