KTM 350 - 500

[scottm]

Can anyone tell me how to tell if a motor in a 1989 ktm 2 stroke is a 500  /  350.( any marks on head / barrel )

Thanks

[oz555ktm]

You can tell by the Engine Number the first 3 numbers 

 Firts number year
  2nd engine Family  350cc  =  55
                            500cc =  56

     Eg   9555****     is a 1999   350cc


     Eg   8664****      is a 1988  500cc

  by the late 80s ktm whent to Vin Numbers (17 of them) on the head stem the first letter is the Year

     1990 = l
        91 = m
        92 =  N
        93 = P
        94 = R
        95 = S
        96 = T
        97 = V
        98 = W
        99 = X
     2000 = 1     
                     My Brain Bank stops at 1985 I bleave this to be 90% wright ...

[scottm]

Thanks oz555ktm will do some home work ps/ 81 250 mx any gearbox problems or anything that i should look for.

[oz555ktm]

All good made strong .....

Clutch Dragg nomal ..  Must use Tran Oil Dexton 2
 
Top Bike ..
Need More Info Books

Pm me for a Phone Number ....

[bigk]

Our '81 390's clutch doesn't drag. We use Belray gear saver 75 & an easy pull clutch lever. Light as any modern bike or 125 and works a treat.
Cheers,
K

[ozktm]

on the 81 250 - the kick start idler gear can cause some grief. I have two that have broken this gear.