OzVMX Forum

Marque Remarks => Other Makes (CanAms, Coopers, etc) => Topic started by: YUMASTEPSIDE on October 18, 2015, 01:55:38 pm

Title: '88-'89 ATK250
Post by: YUMASTEPSIDE on October 18, 2015, 01:55:38 pm

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 :o ???

                      Roger

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

Title: Re: '88-'89 ATK250
Post by: Nathan S on October 18, 2015, 04:04:26 pm

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

Title: Re: '88-'89 ATK250
Post by: evo550 on October 23, 2015, 11:50:01 am

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

Title: Re: '88-'89 ATK250
Post by: HeavenVMX on October 23, 2015, 09:00:02 pm

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

Title: Re: '88-'89 ATK250
Post by: mustanggrahame on October 23, 2015, 09:45:33 pm

Yes

Title: Re: '88-'89 ATK250
Post by: YUMASTEPSIDE on October 24, 2015, 05:50:01 am

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

                           Roger

Title: Re: '88-'89 ATK250
Post by: Lozza on October 24, 2015, 11:08:53 am

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.

Title: Re: '88-'89 ATK250
Post by: YUMASTEPSIDE on October 24, 2015, 05:36:47 pm

............OK,so does someone have an exploded parts diagram book for an '88-'89 ATK250 air cooled?   8) ;) ::)

                    Roger

Title: Re: '88-'89 ATK250
Post by: HeavenVMX on October 24, 2015, 06:17:35 pm

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

Title: Re: '88-'89 ATK250
Post by: Lozza on October 26, 2015, 06:54:19 pm

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

Title: Re: '88-'89 ATK250
Post by: evo550 on September 15, 2016, 09:33:57 pm

Go here www.atkusa.com

Title: Re: '88-'89 ATK250
Post by: supermotomc on November 09, 2016, 11:43:39 am

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

Title: Re: '88-'89 ATK250
Post by: evo550 on November 09, 2016, 11:56:36 am

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