Well, first of all, this bike in it's orginal form, REALLY sucks for a trail bike. it is WAY too pipey for a trail. so far, I have dropped the pilot jet and the main jet and it is still TOO rich in the low end. the float is on the money. {i got one too} the next thing I am gonna try is dropping the front drive sproket one tooth, and raising the rear one tooth, and go up on a chain value. just no low end power, as I'm sure you are aware of. the stock chain appears to be stretching pretty quick as well. I thought I would work up to a pipe for my boy, so I will try other stuff first, then a pipe. the stock shifter is a little weak too. I'm not too sure how far I would go on droppin the fork, it is already what, 20mm?? we reset the ride sag to 100mm
If you come up with something that works, PLEASE! pass it on to me. very large change for velcroboy from a TTR125L to a YZ
Thanks.