Posts: 952
Joined: 12/9/2009
Location: Mattawa, WA USA
My KTM 125 is a pretty bad shifter and is very difficult to shift from 1-2 without ending up in neutral. I've heard that I can polish the star and also alter the neutral bump to help out.
Can anyone offer any advice on what exactly to do. Luckily I have a few to practice on..
Thanks 
Posts: 1141
Joined: 1/3/2011
Location: USA
I'm not an expert, but I would think you want to round off the edges on these two parts to make it easier to skip over that whole section.
Posts: 952
Joined: 12/9/2009
Location: Mattawa, WA USA
Right...but I'm worried about doing too much...because if those are rounded off wouldn't it also make it easier to slip into neutral from 1st or 2nd?
Posts: 293
Joined: 1/9/2017
Location: Indianapolis, IN USA
Ha, those old Ktooms weren't the best shifters for sure.
If your willing to send me one I can chuck it in the the gear polisher at a race shop I visit and have them apply their surface treatment.
Worth a shot...
Posts: 1141
Joined: 1/3/2011
Location: USA
Yes, I would think so. BUT - that's a two edged sword right? And you have a few to practice on.
I would also think whatever spring is applying tension to hold the roller in each gear location could be modified for extra tension.
Posts: 94
Joined: 2/11/2018
Location: Puyallup, WA USA
I remember installing a shift kit in my 1993 KTM 125 which consisted of a new spring/roller and a new star which made a big difference. I dont remember if it was a KTM kit or made by Factory Pro.
When in doubt gas it! It may not cure the problem but it will end the suspense!
