I gave my laser z hp engine to a friend to rebuild. It's a Kawasaki fh680 v 23 hp. Well he is a professional motorcycle mechanic and took the entire engine apart and started making a parts list which I ordered all except what he called crank or main bearings.
I looked online and figured out that they don't have a main bearing on crankshaft instead a sleeve that fits in the cases and the crank rides on that.
So my problem remains he removed only one of these ( thank god) and Kawasaki doesn't offer it as a separate part. They want you to buy the entire case for $450.
Does anyone know where I can find that sleeve/ bearing or any other help or solutions would be greatly appreciated. Thanks