Don't forget to change fuel filter!
Club Member
Joined: Feb 2008
Posts: 11,483
Likes: 39
From: Passaic County, NJ
I do most of the work on my bike (07 FXD) and have never really thought about the fuel filter as it is inside the tank. Well I decided to change it out and glad I did. I don't know how the bike kept running. The old filter was so clogged up you could not even get air through this thing! I have a little more than 30,000 miles on the bike but will be changing the fuel filter more often for sure. Just thought some of you might be interested. 
I had a tiny bit of rust in my tank and it was only 3yrs old. Who knows how much of it made it's way passed the filter into the engine.
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,624
Likes: 6,442
From: Honah Lee
Sorry (IAC= Idle Air Control) It sits on top of the throttle body. Its a v-shaped pintol valve driven by a electrical stepper motor. You can see it sticking thru on the front side of the throttle body at top sticking thru. Ever time you turn off it pops closed. No run on. Soon as you key on it resets and positions for idle air depending on temperature. It allows a controlled air past throttle plate (plate is complete sealed at idle) You can see this reset motion with air filter off and is part of a check of the system. Do not hard spray carb cleaner straight up thru this on a regular basics. It will drive crude up thru seal and into stepper motor. It will fail shortly if you do this.
Last edited by Jackie Paper; Aug 27, 2011 at 07:17 AM.
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