90 sp carb help

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murphn8r

New Member
So I'm rebuilding this carb. And I'm curious if this diaphragm is supposed to have all these gaskets. It has the two brown and the clear one that came off it when I pulled the cover. Is it really supposed to have that many? 20230811_202859.jpg20230811_202910.jpg20230811_202621.jpg20230811_202645.jpg
 
Bump. Trying to get it on the water tomorrow would love to know for sure. I've looked online and all I keep getting is the same pick that came with the mikuni carb rebuild kit but it's not quite the same.
 
I wish I could help, but I really know anything about your carbs. They are pretty rare. But I took a look at OSD marines website and they only include one of those brown round gaskets in their kit.

OSD Sea Doo Complete 587 Round Body Single Carb Pkg (1988-1990) [OSD1100] - $44.99

I also looked at the shop manual and it only shows the one brown gasket as well. You can download the manual here:

1990 SeaDoo SP, GT Service/Shop Manual - FREE PDF Download!

This leads me to believe you have too many pieces in yours.
 
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