Ha. I thought that was the only way to do a wiring project!

 

Adjusted the mixture 1/2 out, rode 25 mi. only noticed 1 hiccup and engine runs much better, def noticeable diff. Guess i could go another 1/2 turn out..? FYI, in order to rmv the mix screw plug I just loosend the boots, rmv throttle cables and rotated the carb about 90*, enought to drill + pull the plug.....thx for the help

 

Good things will happen when that screw is two to three turns out, you might seat it gently as you count your turns so you know where you are with it. I run three turns out.

 

ROFL, lol, when you told us it didnt work right I was thinking you had to have grounded the wrong end, cause mine worked for over 5hrs yesterday. haha, way to go

now to me...I got an fmf Q4 used($100) off a ktm450 and a KN air filter. Ive got the box cover off. Wow its loud(intake). I have the DJ132 main and needle set to 3rd and a/f 3 turns out
Sounds like its running outta power around 8500. Still lean? will placing the box cover back on help at upper range?

I could start my own tread but am really only asking 2 of the guys that have been keeping up on this thread and I will just remove my question when I figure it out. Unless some1 could point out where this has already been asked

 

I really hope I don't jinx myself here, but I'm pretty sure my bike is 100% fixed now due to this thread.

I had the same higher RPM stumble that has been reported by many and just assumed that I didn't have my jetting exactly right.

After Maine250SF posted about the electrical mod that his dealer performed, I did the mod today the way David R posted.

I made a jump wire out of decent gauge wire and soldered a ring connector on one end. I removed the black w/yellow wire from the harness and soldered my jump wire to it. The clear plastic harness protector even has a neat pre existing hole that I snaked the jump wire through. Then, just connected it where the existing ground wire mounts to the engine case.

Connected it all back together and went for a test ride. NO surging whatsoever at any RPM. The stumble/surging at higher RPM's is gone as well as an intermittent low RPM stumble I had from goosing it hard from a stop.

All I can say is this simple mod made my bike a new bike.

Thanks to Maine250SF for posting the original info and for all the guys who did the mod and their posts that I used to then do my own.

This is an awesome forum with really great people!

 

they need to sticky this thread so new comers can find it. alot of help in this thread.

Thanks guys the surge seems to be gone I've rode all week with no stumble.

 

Hey guys I'm glad the repair seems to be working for everyone. I don't think the dealer would have figured it out with out the tips i got from all of you and pointing at the regulator. So I also thank all of you and glad the bikes seem to be better!

 

Accually maybe someone should rewrite the question/problem and the fix all together with referances to posts by other users of the issues from this thread. And have THAT a sticky.?

 

Thanks Main250SF and David R for the input on the bucking problem. I bought my 2009 250S early this spring and had the bucking problem from the getgo. I first thought the previous owner had a pipe on it and took it off when he sold it to me and never rejetted it back to stock. I couldn't understand why a relatively new bike with only 800 miles on it would run so poorly. Love the bike otherwise. I had a '94 Yami XT225 but needed an updated bike with some more umph (longer legs on the highway). I'm going to try the regrounding idea. Thanks again...just wish I read this before I had my husband tear the bike apart to get the carb off.

 

I hope this can be made into a sticky with the fix easy to find at the top of the page.