Dan17

Hmm... yeah righto. i think i might check mine just for the heck of it, now that i think about it my brother might have done it for me when my bike was throwing up the TPS fault code and running rough...turns out it was just a loose terminal, causing low voltage.... I'll check it again anyway.
Looks like ur having fun with that JD tuner

Palle

Hmm mine was correct this weekend. Could set it in the range. Now my meter shows 2.000. Cant get that low. And ideas?

Palle

Hmm. Runs perfect at 2,601 now. Im gonna get another voltmeter just to make sure. I Never had the tps off. So it cant have changed inside physicly.
Can Be broken, but The odds of being broken excactly 2,0 volts up?

Palle

Same deal with another voltmeter. why is it working? Should run to fat now in my opinion.

jon andersson

Have you made any other changes on the engine?

Palle

No. None at all. Its all original now

scorpion

Can the TPS be set from the dealer or is the JD jetting tool required?

Going to throw a new CA fuel pump at my flame out/hard start issues but now thinking the TPS may be the issue.

tourist

TPS can be DIY'd! - posts on it here iirc, also it's the same procedure as on KTMs which is a good search term

Palle

I use Needles or Steel thread to measure from the cdi.

dgangle

long read but good.

In short there is a guy in FL who sells a Y harness that makes it very easy to measure and adjust. Factory setting is 0.601VDC +/- 0.004

The TPS adjustment thread - Page 4 - 250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes) - ThumperTalk