WR had to teach us..........
How to start it.......but that said, we noticed our KS lever getting the notch, so with all the options, blames (Yamaha, kicking too hard etc) I had some real good radiator hose, cut two bout oh........3" pieces, slit them lengthwise, put one on, zip tie'd it top and bottom, then slipped the second one over it, 3 zip ties....... and it works super, kind of a custom KS bumper.
Granted, I was notching the KS lever (and my son) already, due to not knowing how to start these things.
We do now and it is a one kick affair, cold or hot, and an easy kick (ala KDX 200).
Good luck, hope the "groove" thing stops!.......parts aint cheap!
I know this probably doesnt help much now (oooops) but after repairs, prevention is strongly recommended.......my $.02....
Good Luck on the fix, hope it is not toooooo terminal.....
HR
:cool: