2010 TE/TXC250 hesitation fix... maybe

[Motosportz]

While my bike does not seem to have the hesitation issues some report (mine will do it very slightly) I spoke with a new customer of mine about his 2010 TE250 hesitation. He installed one of the new Rekluse EXP deals and said he could not get it to stop dragging as set up. So he lowered the idle to about 1800 via the knob on the side of the EFI body and said it eliminated his hesitation altogether. He also said his riding buddy has the same bike (2010 TE250 EFI) which is all stock and also has the hesitation, lowered the idle to 1800 and bam, fixed it. I have not tried this on mine but he thinks the slight butterfly opening while setting the TPS is the issue. Wonder if you backed it all the way out and reset the TPS if that would do it? Just passing info along to those having issue for a possible solution.

 

[ioneater]

Hmmm, do we have to reinstall the o2 sensor to set tps? I'm too lazy to go try the iBeat. I've definitely got the hesitation, but idle is set around 2000. Hmmmm...

Thanks for the word

 

[raisrx251]

I just rode my bike down the street with the new ECU from the pipe kit and no hesitation. Too soon to say if it makes any more power riding here. It looks like Sundays trail ride is going to be washed out.

 

[ioneater]

Ok, I just messed with idle and iBeat. TPS is set. CO1=99, CO2=101, CO3=101. 1800 is now set. Will have to ride it to see, though. I like what I'm reading about these exhaust/ECU upgrades........except for the price! Holy cow!

 

[R_Little]

How do you set the TPS with I-Beat?

 

[ioneater]

After warming up the bike, shut it off, plug in if not already. Power up the bike with the kill switch and click the TPS icon shown on top of iBeat page. Click through the "consult workshop manual" pop-up and then click read. The current and set values will appear. Click on set and they will both become the same! You're now calibrated. Sorry for no screen shots, but it is very easy.

 

[ioneater]

Oh BTW, bog is still there after setting idle to 1800. I can kill the bike with it if I wick the throttle hard off idle several times in a row.

 

[raisrx251]

When Ioneater says "power up the bike with the kill switch", you turn the switch on but do not start it to read the TPS value. It will not read it with the engine running (I believe).

 

[Motosportz]

When Ioneater says "power up the bike with the kill switch", you turn the switch on but do not start it to read the TPS value. It will not read it with the engine running (I believe).

Correct.

Good stuff Greg, thanks for the feedback.

 

[Darkside]

Oh BTW, bog is still there after setting idle to 1800

Yep. I tried 1800 idle also. Didn't work for me either. I did richen CO1 to 102 and that helped. It doesn't stumble on technical stuff but can still be made to hesitate by wicking on the throttle quickly.

 

[Motosportz]

OK, never mind then

 

[ioneater]

This is a good thread

OK, never mind then

Hey, at least you got us posting what we're setting and how it responds! I just set mine to- CO1-> 102, CO2-> 101, CO3-> 101 after Darkside's experience.

Idle is still 1800ish. Hesitation is much reduced in the garage with multiple wicks of the throttle and a quick zip around the block. We'll see what it does on the trail.

Note: Only thing I changed was CO1; it was 98.

 

[ioneater]

Ok, just did 40+ miles of Nirvana near Shelton with the above settings. More gooder! Low rpm stumble didn't bite me at all today and I was in that range quite a bit. I screwed up and forgot to check my mileage when refueling at pump. Upper 20's as a guess.

Some of this may be a function of break-in as well. Got around 200 miles (30 hrs) on it now.

 

[Darkside]

I'm experiencing something more pronounced now. The bike is cutting out and popping very badly at small throttle opening. Sort of like I experienced when I start the bike too quickly before letting the FI build up pressure but worse. If I turn off the bike and then reset the power and wait 3-5 seconds before starting it used to go away, but it's getting worse. I did notice that the negative post on my Turntech battery is loose and may have intermittent connection inside the casing. I'll have to contact Turntech for a repair. Hopefully it's something that simple.

 

[Motosportz]

I'm experiencing something more pronounced now. The bike is cutting out and popping very badly at small throttle opening. Sort of like I experienced when I start the bike too quickly before letting the FI build up pressure but worse. If I turn off the bike and then reset the power and wait 3-5 seconds before starting it used to go away, but it's getting worse. I did notice that the negative post on my Turntech battery is loose and may have intermittent connection inside the casing. I'll have to contact Turntech for a repair. Hopefully it's something that simple.

also if you have access to iBeat hook it up and see if there are error messages. Mine told me my temp sensor went bad. it ran kinda like that right before it died completely.