R3 High idle after warmup, kill switch temporarily corrects

[boogerdave]

Throttle cable is too tight. It wont allow the stepper motor to reset which the kill switch does. Had the same issue.

I did the same thing with the re-routing of the cables and re-adjusted with the Rivco risers. As soon as the cable was adjusted with a little slack . . problem solved.

 

[britman]

The Fix

After reading about doing away with the stepper motor entirely and manually setting the idle I finally went for it. My stepper motor is living happily under the seat in the old air cleaner holder and my bike has been running perfectly for about 3 thousand miles now. **** if it doesn't work..............

 

[Georgia Cruiser]

Thanks for the advice. I took it into the shop for the third time. They downloaded a new tune and ran all the diagnostics, and re-set everything. It seemed to be running fine when I left the shop, but sure enough, about 20 minutes down the road, it started running at 1200 rpm and had a hanging idle. I rode it back and they told me it was probably a faulty idle stepper motor since the diagnostics failed to show anything wrong. They insisted it was not TPS, or there would be readings on the computer. The tech just came back from Triumph fuel injection school, so I am being guardedly optimistic. Now I am back in the cue once again behind tons of other bikes, and I have lost almost a whole season of riding. I will keep everyone posted.

 

[zimtuff]

T Now I am back in the cue once again behind tons of other bikes, and I have lost almost a whole season of riding. I will keep everyone posted.

I would be jumping up and down about that. You were in the cue before them and as they havent fixed your bike yet,you should still be ahead of them

 

[tdragger]

I'm still betting on the Primary TPS. If the TPS hasn't been replaced previously, it is the old style with the black interior. The new TPS has a blue interior.

The symptoms you describe are classic TPS symptoms. Mine never showed any codes or other irregularities while in the shop or connected to TuneECU. Only after turning the throttle up high enough to have the TPS reach it's flat spot does it hang up.

I don't recall seeing how many miles on your '05. Once you reach around 15k miles, the TPS issues start to show up. The TPS is a rheostat and it develops a flat spot at the rotation that corresponds with normal cruising speed (1800-2200 rpm).

Check you throttle cables as others have suggested but insist that the dealer install a new TPS and go out and try it. That's where my money would be on this scenario.

 

[Georgia Cruiser]

High Idle Problem on 2005 Solved-Idle Stepper Motor the culprit

Thanks for all the advice everyone. I took it to the dealer four different times. We tried downloading different tunes, which didn't help. We tried the 12 minute tune up, replaced TPS, re-routed the throttle cables that were attenuated b/c of RivCo risers, adjusted throttle bodies and cables and applied lubricant, disabled Power Commander, all to no avail. They finally replaced the idle stepper motor, and now it runs like a charm.

Life is good again!