billet aluminum couplers question

looking to make all my skis so I can interchange the motors easy
Are all billet yamaha couplers with the kawi biscuit interchangeable
could I install a motor with an ada coupler into a ski with umi or since I have umi I need to stay with that

That being said does anyone have any for sale or want to trade for riva couplers
 

Matt_E

steals hub caps from cars
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at peace
Be careful.

The billet couplers I know of will work only on the later, thicker midshaft.
I believe those started in 95.
 
Be careful.

The billet couplers I know of will work only on the later, thicker midshaft.
I believe those started in 95.

interesting my blaster is a 94,now I remember another post you made similar to this. The blaster mid shaft may be different

If so that will be ok ,at least I could make the sj interchangeable
 

RMBC Freeride

Vintage
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Pueblo, CO
In my experience they are not all the same. for some reason each company decided to use a slightly different outside diameter. So if you mix them up, its hard to use a straightedge across them to check alignment
 
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