[fmtx]

I have a 98 125 and everything is fine when the bike is started. When I go to adjust the idle...it doesn't adjust. I can turn it clockwise and counterclockwise, and there's no change. What can I do to get the idle screw to work again? Thanks!

 

[Knoc]

my guess would be your adjusting the wrong screw, probably the air mixture screw. i did the same thing when I 1st got mine. Do you have a manuel?? Id check that out. What carb ya got? A Mukuni??

 

[crazyman]

The current issue {Dec} of "Transworld Motocross" has a killer article about Carbs/Jetting {Pg.92}, written by a Pro Mechanic, that I found interesting and helpful. Give it a look and see for yourself. Good luck and keep riding!!!