Maintenance & Technical > KX250 / KX125

1985 kx 125

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500freak:
hey guys i just bought a 85 kx125 and i need a rear wheel with hub. it has rear drum breaks and cant find one anywhere. if you got one shoot me a line. but over all it is great. i was told it didnt run. i changed the reeds and it came to life. is there any must do's or dont do too these bikes? i have 2 k5's but i dont know about the 125's.

byron909:
there is few  drum rear wheels for 85 kx125 on ebay right now. my first motocross bike was a 85 125, currently restoring it, must have owned 10 different 80's era kx125 when i was younger. i remember just about every one i owned had powervalves not in right.  not sure of any must do's, but all of mine really took to port work, and head work. i just remember 84-87 had vm 34 mikuni that had no air screw. i had to tap the thing and rob parts from yamaha models to make work. usually went leaner on everything in carb. if you need any parts, i have alot of 125 stuff i won't need for my build.

500freak:
i need a set of power valves for an 87 kx125. if you have any pm me.

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