PWC Forum: The best hang-out for Personal WaterCraft enthusiasts - View Single Post - x2650--> js550 motor swap. is it possible?
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Old 06-28-2010, 03:59 AM   #3 (permalink)
prickofmisery
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Join Date: Jun 2008
Location: Ventura County - SoCal
Posts: 64
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You can run the 550 electrics however you must change the 550 voltage regulator (V/R) to a 650 V/R. You will also need a 650 specfic pipe. The other member is correct you will need an adaptor plate to bolt the 650 motor to the 550 bedplate.
You will also need to increase the pitch of the impeller in the 550 pump to a 17 or greater.

Rock Couty Jet Sports in WI. makes a high quality adaptor plate.
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