'88-'89 ATK250

[YUMASTEPSIDE]

Anyone got a manual for an 88-89 ATK 250 air cooled ?? or at least a manual or some sort of instructions for the Rotax motors they used in them.This one came in a box along with a complete.....well, pretty much complete.....roller, even has that weird primary sprocket mounted disc brake

                      Roger

..........come on Nathan, this should interest you !!

[Nathan S]

Sounds good Roger. I can even get it back to Australia this week.
Thanks!

[evo550]

Here's one for a 406, same motor but with a bigger slug ?
http://auto.manualsonline.com/manuals/mfg/atk_motorcycles/406.html?p=21

[HeavenVMX]

I thought the 250 engine is rotary disc valve while 406 is crank case reed valve?

[mustanggrahame]

Yes

[YUMASTEPSIDE]

...........correct! thanks for the link, but unfortunately the two motors have different types of induction.

                           Roger

[Lozza]

Rotax engines don't usually have manuals as such just exploded parts books. Good news is they are similar across the range with many common parts.

[YUMASTEPSIDE]

............OK,so does someone have an exploded parts diagram book for an '88-'89 ATK250 air cooled?   

                    Roger

[HeavenVMX]

http://oldknobblies.com/tips/swm-engine-manuals

[Lozza]

the exploded diagram in the "engine tech notes" should be very close for any rotary valve rotax .The gearbox should be the same for a reed valve

thanks for the link

[evo550]

Go here www.atkusa.com

[supermotomc]

Not a problem Disc timing  is the paramount, there  are  3 possible all marked by casting marks, would need to see your Dise to confirm which one is for yours
there early TNT - late Canam  THEN SWM

[evo550]

Not sure if this is still needed, original post was over 12 months ago, but I think this is what your looking for Yumastepside..
http://www.atkusa.com/manuals/Rotax/Service/250-406AC%20Rotax%20Repair%20Manual.pdf