Up for auction is a Dale's Jet Sport Bad Attitude ignition coil for any Kawasaki 650 jet ski engine and would work with a 750 or 800 running a 650 flywheel and stator. This coil has no rev limiter and gives the boat an added 3 miles an hour to top speed. 

ww.dalesjetsports.com/tutorials/replacing-the-bad-attitude-cdi-igniter/