Impressive!Thats a standard head the was welded up by my father. He gave me squish size and combustion chamber volume specs, I created a model of a combustion chamber that met those specs. I then used that model to create the program to mill the combustion chambers and spark plug holes, as well as face the head off and take care of a few other little things.
Here's the head before being machined.
Thanks Teazer (and Savor)... makes sense nowPrimary drive is between two and three to keep the clutch tucked in and transmission centered. Kawasaki triples have the drive off the crank end and need a longer gearbox output shaft to get the chain run right. This arrangement is nice but makes the crank longer.
So to keep it as narrow as possible, the transfer ports are twisted (rotated) and that complicates things a bit more.