Carb Jetting
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Intermediate
Joined: May 2011
Posts: 48
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From: usa
Carb Jetting
Ok, so my 97 wide glide is running lean. I checked the plugs today after riding for a month or so on new pipes. I have a stock motor, vance and hines straight shots. Stock Carb. My question is, should I do both jets, or just the pilot jet, or something else? Thanks.
Road Captain
Joined: May 2006
Posts: 720
Likes: 2
From: Kansas
use a 45 slow (pilot) jet.
adjust the mixture screw for idle quality and slow speed driveability.
you could try is a N65C needle that was stock for an '88 Sporty and that's about all I would do on a stock 80" Evo.
most ppl jet their carbs waaaay to rich, with just pipes on a stock motor, you don't need to do much for it to be right, actually it may be very close with just turning the mixture screw out a half to 1 turn (from where it's at stock) with no other changes.
adjust the mixture screw for idle quality and slow speed driveability.
you could try is a N65C needle that was stock for an '88 Sporty and that's about all I would do on a stock 80" Evo.
most ppl jet their carbs waaaay to rich, with just pipes on a stock motor, you don't need to do much for it to be right, actually it may be very close with just turning the mixture screw out a half to 1 turn (from where it's at stock) with no other changes.
Stage II
Joined: Aug 2011
Posts: 2
Likes: 0
From: chicago unfortunately
My 96 FXD with drag pipes liked the reversion cones and 48 primary jet and 180 main jet. Thru trial and error, I went thru the 45, 46, and settled on the 48 primary. It responds best with this setup. I can hear a slight softening of the exhaust note with the 185 main jet, but I'm not wanting to over-jet myself.
Just remember that each bike is different- and jeep an eye on your intake gaskets at the cylinders- just a slight air leak causes more grief than you'd ever imagine!
Just remember that each bike is different- and jeep an eye on your intake gaskets at the cylinders- just a slight air leak causes more grief than you'd ever imagine!
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