Idle High and then low and high then low.
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Stage I
Joined: Aug 2017
Posts: 1
Likes: 0
From: Mairena del Aljarafe Sevilla Spain
Idle High and then low and high then low.
I have a 2007 Heritage and at times, my idle races for a few seconds then drops back to normal..then races again, then drop back to normal...What could be the problem here?
Road Warrior
Joined: Aug 2015
Posts: 1,712
Likes: 410
From: Puyallup, WA
First problem is you posted in the Sportster section, should be in the Softail forum.
Problem with your bike is probably the idle air control (IAC). The IAC is small thing inside the top of the intake manifold just behind the air cleaner. It probably needs cleaning.
Remove the air cleaner, and use some "mass air flow sensor" cleaner. Spray cleaner on the IAC while turning ignition switch on and off. Cycling the ignition on and off will activate/deactivate the IAC, you will see it move.
Problem with your bike is probably the idle air control (IAC). The IAC is small thing inside the top of the intake manifold just behind the air cleaner. It probably needs cleaning.
Remove the air cleaner, and use some "mass air flow sensor" cleaner. Spray cleaner on the IAC while turning ignition switch on and off. Cycling the ignition on and off will activate/deactivate the IAC, you will see it move.
HDF Community Team
Joined: Dec 2011
Posts: 8,512
Likes: 3,924
From: San Diego, CA
Problem with your bike is probably the idle air control (IAC). The IAC is small thing inside the top of the intake manifold just behind the air cleaner. It probably needs cleaning.
Remove the air cleaner, and use some "mass air flow sensor" cleaner. Spray cleaner on the IAC while turning ignition switch on and off. Cycling the ignition on and off will activate/deactivate the IAC, you will see it move.
Remove the air cleaner, and use some "mass air flow sensor" cleaner. Spray cleaner on the IAC while turning ignition switch on and off. Cycling the ignition on and off will activate/deactivate the IAC, you will see it move.
John
Seasoned HDF Member
Joined: Jan 2010
Posts: 7,379
Likes: 3,347
From: usa
It could be a hole in your fuel line inside your gas tank . Does your gas tank sound like a hiss for more then 3 or 4 seconds when you turn the ignition switch to ON . You can also look inside the tank when the gas is very low for this problem. There should be NO gas sparying anywhere inside the tank .
Last edited by Iron lHorse; Aug 26, 2017 at 10:03 AM.
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