Down is 1st, up is 2nd to 5th and between 1st and 2nd is neutral. (I hope you didn't mean clutch plates).
no the 1985 kx 125 cylinder will only fit years 85-87 kx 125s
no i have a 2000 yz 125 and can beat a kx 125 blind folded
Yes
5 gears
Kawasaki kx 125 is the best
The seat height on a 1991 kx 125 is 37.1 inches
kx 125 is better because KTM 125 or any ktm snap so go with kx 125
4
No it won't only 1999-2002
6
play with the carb and or change the plug gap accordinglly?
No you cant.