OzVMX Forum

Marque Remarks => Yamaha => Topic started by: VMX Andrew on June 23, 2012, 05:55:25 pm

Title: 80 model yz250g vs 81 model yz250h
Post by: VMX Andrew on June 23, 2012, 05:55:25 pm

Hi chaps, would anyone no if a 250g 6 speed gearbox fit inside a 250h motor?? 

Title: Re: 80 model yz250g vs 81 model yz250h
Post by: Nathan S on June 23, 2012, 08:32:25 pm

Yes.

Title: Re: 80 model yz250g vs 81 model yz250h
Post by: VMX Andrew on June 23, 2012, 09:48:12 pm

Thanks for clearing that one up for me nathan.
Always thought those parts were interchangable.
Just having a few problems at the moment trying to put those parts together.
Some shafts on the dogs wont mate up when we close the 2 crankcases together for some reason,
might have to get a reputable bike mechanic to do the job. ;D     

Title: Re: 80 model yz250g vs 81 model yz250h
Post by: VMX Andrew on June 24, 2012, 10:26:00 am

Bump! Anyone done this conversion before ??
If so did you have any trouble ??

Title: Re: 80 model yz250g vs 81 model yz250h
Post by: maico police on June 24, 2012, 12:54:34 pm

I dropped my g box into my h cases last time I had it apart just to see. Everything seemed to slide into place. I didn't run with it simply because the h gears were in better shape. The cases are exactly the same (apart from the breather hole).
It should go together.....

Title: Re: 80 model yz250g vs 81 model yz250h
Post by: VMX Andrew on June 24, 2012, 07:43:43 pm

Quote from: Mont on June 24, 2012, 12:54:34 pm

I dropped my g box into my h cases last time I had it apart just to see. Everything seemed to slide into place. I didn't run with it simply because the h gears were in better shape. The cases are exactly the same (apart from the breather hole).
It should go together.....
Thanks for that info Mont im sorta in the same postion with my old G cases all cracked around the sprocket leakin oil
so i decided to buy a set of H cases that were in pretty good order and cheap as chips.
The Gs internals are in top condition and thats why id like to stick with them even the clutch basket
looks near new with no grooves in.
Ill have another close look at it tomorrow.