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Old 02-25-2006   #8 (permalink)
TBAbob
Senior Member
Supersport 600
 
Join Date: May 2005
Location: Eastern Pennsylvania
Posts: 139
Tomo,

God, I almost hate to post this but there is a very good chance that there is a much easier fix for the idle problem!!

I had this problem last summer. Every once and a while, the idle would "hunt" all over the place! On some occasions, the bike would actually die if I didn't manually feed in a little throttle. No fun in heavy traffic where, of course, it happened once. BTW, the idle was dying right from the beginning of the ride, long before I got into the traffic. It also happened other times on open roads with the temp in the 70's. I saw no relation to temperature at all.

The idle is controlled by the ECM thru the idle speed stepper motor located just in front of the throttle bodies. Since the ECM is a computer and computers have a nasty habit of going insane for no reason apparent to us mere mortals, the programming might just be the culprit.

I took the bike back to my dealer (Hermy's) and had them reprogram the ECM's idle speed setting. This involves popping the seat off and attaching the controller that every dealer has. Took about 5 minutes. That was early last August and, after several thousand miles, the problem hasn't reared it's ugly head! Admittedly, this was an intermittent problem and could happen again but I'm really starting to think that this was the solution. My dealer had one other bike with the same problem, did the same fix and, as far as I know, that ended it as well.

This is a very simple and quick shot at a cure. You might want to give it a try before going to a lot of trouble. My dealer didn't think of charging me for the re-tune and no other responsible dealer should either.

Cogito ergo equito

Bob

[ This message was edited by: TBAbob on 2006-02-25 08:59 ]
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