Low idle
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Stage II
Joined: Oct 2010
Posts: 2
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Low idle
When I first start my bike, a fuel injected 99 eg classic, the idle is about 1k. If I blip the throttle, it drops to 400 to 500 rpm and remains there untiil I ride for about 20 minutes. After that, it idles at 800 to 900 rpm and stays there. The bike doesn't stall, but it shouldn't idle that low and I'm concerned. Can anyone help?
Road Master
Joined: Jul 2007
Posts: 1,009
Likes: 4
When I first start my bike, a fuel injected 99 eg classic, the idle is about 1k. If I blip the throttle, it drops to 400 to 500 rpm and remains there untiil I ride for about 20 minutes. After that, it idles at 800 to 900 rpm and stays there. The bike doesn't stall, but it shouldn't idle that low and I'm concerned. Can anyone help?
Also remove the air cleaner and clean the throttle body with an spray cleaner. Be sure to put the straw into the two holes at the top of each throat, these are the idle bleed holes.
Road Warrior
Joined: Nov 2007
Posts: 1,984
Likes: 7
This might not apply to a 99 but you said FI.
On later bikes I know the start idle is set higher at first. It will hold higher, longer, till the throddle is moved. I try not to move the throddle, at first, long as I can. Let things settle down first so to speak. but only maybe 30 sec or so.
On later bikes I know the start idle is set higher at first. It will hold higher, longer, till the throddle is moved. I try not to move the throddle, at first, long as I can. Let things settle down first so to speak. but only maybe 30 sec or so.
Tourer
Joined: May 2005
Posts: 473
Likes: 8
From: Chelsea, AL
On the end of the throttle shaft there is a plate that the IAC uses to control the idle speed. You can squirt some lube like WD40 on it and see if your idle speed improves. If it does then you may have the mini bearing in your plate needs replacing. You can find them at most any bearing supplier, and they're pretty cheap too. If the IAC senses any resistance it will back off and let your idle speed drop.
It's another thing to consider with thw MM systems. I had to change mine after it would keep losing the correct idle speed after I reset it several times.
It's another thing to consider with thw MM systems. I had to change mine after it would keep losing the correct idle speed after I reset it several times.
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