Carb adjustment

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Apr 5, 2014 | 03:42 AM

Banditsghost

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Intermediate

Joined: Mar 2014

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From: South West Wyoming

Carb adjustment

Okay y'all, I am currently working on a 01 Fatboy, basically stock for a friend. Problem is bike is real lazy when you twist the throttle, under load or sitting. When you snap the throttle there isn't a lot of response, it tries to bog out. Now from my experiences, racing cars and auto mech, this should be a air fuel problem and a simple fix, but on the stock carb I have no idea where the dang adjustment screw is. Did HD hide it and I am not seeing it or is it behind a factory plug? Am I missing something.

Thanks

Apr 5, 2014 | 06:02 AM

Dan89FLSTC

Seasoned HDF Member

Joined: May 2008

Posts: 21,190

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From: South Carolina

Remove the air filter and check to see that the accelerator pump squirts gas into the throat when you twist the throttle. Keep a safe distance the first time you give it a twist just to be safe...

Also check for an intake leak.

It never hurts to disassemble the carb and clean it.

Apr 7, 2014 | 12:18 AM

Banditsghost

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From: South West Wyoming

Ok, I'll check that.

Apr 7, 2014 | 07:14 AM

nhrider1

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Joined: Jul 2012

Posts: 1,566

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From: Londonderry, NH

Quote:

Originally Posted by Banditsghost

Idle air adj. screw is located on the bottom of the carb behind the float bowl. It's capped on stock bikes, but easily removable with a drill and a sheet metal screw. It only affects from idle to about 1/8 throttle.

Sounds like you have a midrange problem. Yes... check the accelerator pump, but you will probably need to rejet and change or raise the needle.

Apr 8, 2014 | 01:15 AM

Banditsghost

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From: South West Wyoming

Thanks, I will look into that. My bet it was never re jetted after the bigger pipe and air cleaner were installed. While I got it apart to do that I'll get that plug removed from the bottom of the float bowl too.