Originally Posted by sargek

OK, my idle issues are obviously most noticeable stopped at a light but even moving when I let off the gas, it is still idling high - same high idle as standing still. I have thought about removing the piggyback tuner but the detonation is terrible, especially in this summer heat. Battery connections are tight, I checked them wen I had the seat off while doing the IAC valve/stepper. Battery is about 3 months old and cranks just fine: it's a "Big Crank" since I gave up on the overpriced stock batteries.

TPS sensor is on the way next week since the dealer didn't carry them so I'll see how she does after that install.

Thanks for all the advice, appreciate it.

Originally Posted by iclick

I'm starting a new thread on this topic because I think it deserves one. Over the past few months I've emailed probably 20-30 PDF copies of HD's TT410 that addresses idle issues on '07 bikes, and new problems and requests pop up nearly every day. This tech tip bulletin covers low-idle problems, but I'm having a sporadic high idle issue.

In my case the bike will occasionally--maybe once every couple of weeks in winter, less-often in summer--start-up idling at around 2000 rpms. This started late last summer. No amount of throttle blipping will make it idle down to its usual 950 rpms, and if I don't stop the bike it will stay idling at that level until I turn it off. Usually I can turn it off at the handlebar switch, then off at the ignition switch, and when restarted will usually idle normally for the rest of the day and probably for quite a few days thereafter. For me it is more of an irritation than a real problem.

OTOH I have had a very few cases (maybe 3-4 over the last year) of poor idle that causes it to idle low and roughly, usually for only a short time that clears up on its own. It's never died during one of these rare spells, though. A tech at the local HD shop that I respect has an '07 and said he fixed his problems by replacing the IAC valve on the throttle body. I tried spraying some carb cleaner and lubricant into the IAC orifice just inside the throttle body and that seemed to help for a short time. A second application didn't seem to help, so I'm not sure my particular problem involves a sticky IAC valve. If I thought it was I'd swap it out in a second. If this was the culprit I would think blipping the throttle and/or just riding the bike would shake it loose, but it doesn't.

Someone on one of these threads mentioned that a download existed from HD that helped with these idling problems, but I haven't been able to verify this. Dawg? Hogdoc? Have you or any of our other resident techs ever heard of this?

Anyway, maybe by starting a specific thread on this issue we'll make some headway in finding out how to fix these problems, as it is affecting many '07 owners.

Anyone commenting on this topic please mention whether it is low- or high-idle, what you've tried to fix it, and if anything has worked.