89 kx125

[85 250sx]

ok well i just bought a 89 kx125 roller from my nieghbor for $100 its in pretty decent shape everything works just needs a motor. it came with a parts motor thats all torn apart missing a crank and some gears are missing teeth. anything you guys can tell me about these bikes? or other forums to go to for help and parts for them?
ive been looking on ebay but havent had to much luck seems like parts arnt as readly available as i thought they would be . also what other year parts will fit on this thing? i have an 85 tecate engine laying around i might try and see how it fits in the cradle tomarrow and see how much work it would take to try and use it

[Brad200X]

My Brother has an '88 KX125. They're awesome bikes. Fast and nimble, and they feel low, which is nice when your used to riding 3 wheelers. As for parts interchange, if its anything like the other KX years, I believe the side number plates and fenders interchange with the '89 KX250 and KX500, and I know most of the KIPS parts interchange with the '88, but the valves themselves are a little less restrictive on the '89 ones. What parts in particular are you curious about?

[85 250sx]

just curious as to witch year engines and exhaust will bolt right in. also what size carb do these normaly run?

[Brad200X]

Looks like the pipe and silencer will interchange between the 88-89 125 as well. The motors are probably pretty close, too.

[Brad200X]

Not 100% sure on the carb size, but its a Keihin PWK style. I think its an 34mm? The '88 and '96 have almost the same carb, so I'd say that any year in between these will work. The only difference with the '96 is that it's an updated version of the same carb.