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View Full Version : Idle adjustment how to ?


Marc B
06-21-2008, 09:56 PM
My 1250 has a little sound now with the new scorpion but seems a little busy at idle, Is there a screw in there somewhere that can turn it down just a hair ? Thanks SZ.

MetrickMetal
06-21-2008, 10:32 PM
My 1250 has a little sound now with the new scorpion but seems a little busy at idle, Is there a screw in there somewhere that can turn it down just a hair ? Thanks SZ.


My engine didn't idle any higher with the Scorpion on it. The engine should idle at 1200 rpm +/-100 rpm, so is it idling higher than than 1200 rpm?

I believe that the idle speed is controlled by the ECM. :rider:

Arbee
06-22-2008, 12:58 AM
http://pic70.picturetrail.com/VOL1838/8177960/19918229/322280438.jpg

It would seem idle adjustment is out of our hands, but that could mean one of
the sensors is misbehaving... start with the air filter.

Roy
06-22-2008, 07:13 AM
Idle is ECM/ISC controlled, can't be adjusted. Mine is idling high now also 1300+/- 50. I suspect ISC valve is going out similar to other Suzuki's that have already been recalled for ISC faliure. They replace the ECM and ISC valve under those recalls.

I really hate this new ECM controlled setup. Bright side is ride it a while your ECM may adjust itself. I have had mine do this twice after a throttle body sync and the idle came back down over a period of time. This time around after 60 miles its still idling high. I put it on SDS yesterday everything looked fine except my idle which was over 1300 at times. Spec is 1200+/- 100r/min so they ain't going to replace any sensor until its idling at 1500 or higher.

Marc B
06-22-2008, 08:16 AM
Thanks for the info, Its at or around 1200, Its just if there was an adjustment, I was gonna play with it a little to see how it would do around 1k or sound, I didnt know that it is the way it is, I'll live with it.

Roy
06-22-2008, 08:21 AM
Thanks for the info, Its at or around 1200, Its just if there was an adjustment, I was gonna play with it a little to see how it would do around 1k or sound, I didnt know that it is the way it is, I'll live with it.

I will tell you this the tach is not accurate at all. I have compared it too the laptop and it was off 100 rpm (low) compared to SDS.

Roy
06-22-2008, 08:22 AM
I was gonna play with it a little to see how it would do around 1k or sound,

Foot on the rear brake and slowly let the clutch out in gear that'll drop it to 1k rpm:trust: been there done that already.