These came off a running 1994 Polaris slt 750 jet ski.  They are Bolt on ready . . Meticulously rebuilt by a master aircraft mechanic. Pictures show what he wrote down when receiving them . they have been set to factory specs. These carbs are bolt  on ready and need nothing. 

We found that the JetSki we pulled it off of had a bad magneto so we did not continue to fix and decided instead to part the ski out.