Theres a carbon Gen 2 BOB hull for sale in my area setup for Yamaha drivetrain. Im looking to swap my 2011 sxr engine and pump into it and I was wondering if they make adapter plates for the Kawasaki engine. I tried calling the ski clinic and they are closed today. he's asking 4500 with a pole bracket and no pole.
To answer the OP questions -
1 - if it is set up for Yamaha drive line, a Kawasaki pump will not bolt straight in.
2 - it it is set up for Yamaha drive line, a Kawasaki engine will not bolt straight in.
To make a Kawasaki engine work with a Yamaha based hull, you will have to find or fabricate a bed plate that will use the Yamaha motor mount pattern to the Kawasaki engine, and use a Yamaha midshaft housing.