Stepper motor

[dinonz]

Hi ive got the throttle high idling problems . when its warm its idles at 2000 + revs . ive been hard out looking the the stepper motor .im only a dumb plasterer so bear with me haha . why cant i take the stepper motor out all together would that fix the idle problem. i disconnected it today and it seemed fine it only had the light on the dash on but the bike went well ??? any info would be great . Its already had the triumph fix yesterday and that lasted 20 km then back to th old **** again. thanks Dino

 

[Cobba]

Gday Dino.
Am having the same problem myself at the mo.
Was reading somewhere here in the past few days (have done a lot of reading so can't tell you exactly where) of someone who removed the stepper off the throttles and tucked it away in a safe place but still connected so the ECU still thinks it's working.
He then just set the idle using the adjuster screw on the front of the first throttle body.

I thought about doing that but would rather fix it than keep removing things myself.

 

[Gothlander]

Usually the stepper motor is ok and the TPS is the problem. When the Tps is replaced you need to recalibrate it with the stepper motor.

 

[Pig9r]

+1 on the Primary TPS.

 

[dinonz]

Thanks for that im going to play with it today again.itll either fix it or wreck it haha

 

[captain jack]

I had the same problem some months ago, still under warranty it was in & out of the dealers until he eventually found out that the clearance between the stepper motor plunger & the action plate is critical. He set it to listed tollerance + a couple of thou. that has fixed it but he also cleaned & lubricated the shafts for the baffles as he thought they were sticking a bit but he found no sticktion when he looked into it. All in all the problem has gone away for several months now & it looks like the stepper motor tollerance was the problem. BTW he also changed the TPS but that made no difference.

 

[dazzybabie]

Tps?

Hi All,

My '05 rocket has just started doing the idle @2000rpm thing. if i pull the stepper motor back then the revs drop. Should i whip it off and give it a clean and lube incase its sticking???

Also whats the TPS? where do i find it, whats it do etc etc etc

Thanks

Dazzy

 

[warp9.9]

TPS = Trottle Position Sensor. It tells the ECU what %position the Throttle is in so the ECU can send the right fueling signal when riding. Plus its signal is used with the idle parameters to sync the idle stepper motor with it for changes in temperature and atmospheric conditions so the bike idle can be varied as need to meet the conditions.

The TPS is located on the #3 throttle body midway up and on the rear, just under the rear of the bear claw.

You can live without the stepper motor but you will loose the cold start up control the ECU performs.

 

[dazzybabie]

Aha...

So reading this thread...
http://www.r3owners.net/general-tech-talk/11317-high-idle-eratic-tacho-2.html
I could have problems with either the Stepper motor or the TPS.

If i push the Stepper motor back, the revs drop, but as soon as i release it they go back up again.

As with the above thread, if i stop the bike it starts up and is fine for a while then back to 2000+ rpm.

if i take a looksie at the TPS will their be any obvious things to see?

Thanks

Daz

 

[britman]

Long Gone

I have been living without the stepper motor and manually setting the idle for about 5 thousand miles now. Best thing I ever did, no more low or high idle surges. Starts great, even on cold mornings once you develop a technique. I have my bike back......