WANTED YAMAHA MX250/MX360 GEARBOX OR MOTOR

[jimg1au]

hi
looking for a gearbox for 1973/74 mx250 or mx360.just the shafts and gears would be ok.or a 360 motor to pull apart for spares is ok as well
cheers
jimg

[Freakshow]

what happened to the one you got from the states ?

been looking for a 250MX on here for a while, no luck, so id go to plan b, try a DT250 gearbox prity much rhe same except i think one ratio and fits straight in.

[mx250]

what happened to the one you got from the states ?

been looking for a 250MX on here for a while, no luck, so id go to plan b, try a DT250 gearbox prity much rhe same except i think one ratio and fits straight in.

In the DT box, 1st is lower and 5th is higher. The centre three are identical (and in my book identical across DT1/RT1, DT250/360 and MX250/360 (and I think YZ250/360)). There maybe a variation in the primary ratio (clutch basket and primary drive).
 
For mx racing, and racing in general, the close ratio mx box is much more perferable. With the DT box and low seconary gearing (making the centre three effective), first gear is unusable, and top is not much better. The wide ratio DT box would be a limitation and frustration of your tuning efforts.

[jimg1au]

mx250
4th is the only identical gears in my 2 books
1st mx 36\16 dt38\15
2nd mx33\20 dt 34\17
3rd mx29\23 dt 30\23
4th 26\26 dt 26\26
5th 23\29 dt 23\30
freaky
the motor is on the way but that is for somthing else i just want mx gears for my dt360a.i have pistons and barrels but no gearboxes
cheers

[BETRIC]

I USE A DT GEARBOX IN MY MX360A, WITH NO PROBLEM, ONE TOOTH DIFFERENCE IN PRIMARY GEAR BETWEEN THE 250/360,  WENT ONE TOOTH LOWER ON THE FRONT SPROCKET, IT PULLS LIKE A TRACTOR, THE WEBCO HEAD MADE A DIFFERENCE, CIRCLE F PIPE IS NEXT ON THE SHOPPING LIST.