08 SMR510 popping sputtering mid throttle

Great, have to find a lambda sensor now!
Thanks for the clarification.

could be a bad fuel map, u map need to dyno tune it with ibeat or load differant map,

last time i trimed my base map (00) using a autotune i had a big mid range misfire when driven hard

Ok, I'm getting somewhere. I now have an iBeat and have set the TPS but cant set the FB without an o2 sensor. I mounted the JD on the bars to see where it was stumbling (because it still was after the TPS adjustment) and it was in yellow mode 2. I had to adjust it to 1 to get it to run right. The FB1 is set at 102-100-100 and I have read that 97-100-100 are the numbers. I set the TPS by getting the wot to 100.2% then excepting the tps mv which was 1001.

I am 90% there and need an o2 sensor to finish it, if anyone has one they would like to sell please let me know.

3 cheers for Bill and good thoughts go out to Tepco on getting close to solving his problem!

WOW, that was insane fast shipping! Got it today, will be hooking it up and adjusting this evening.
Huge thanks Bill!

Now you know why I buy all my Husky parts from Bill and Bryon

Lookin' for an update.......

So what was the fix?

Bumping, for the fix, or an update, also, what fuel filter did you end up putting into this bike?

I guess he got it fixed, this from SMJ: