Thanks for that. I always wondered why you shouldn’t aim the lobe directly away from the bucket/shim.
I always use factory recommendations but now I know.
If you want the BEST cam positioning method for adjusting the valves, look up the later year KZ1000 method. This method, which coincidentally is identical to the Suzuki GS method, has the cams positioned so two adjacent valves are both on the base circle at the same time, thus the valves are adjusted two at a time. This method is dead easy to remember and execute, too.
Rotate engine until #4 exhaust cam lobe is pointing forward, at the gasket surface, then measure #4E and #3E clearance.
Rotate engine until #1 exhaust cam lobe is pointing forward, at the gasket surface, then measure #1E & #2E clearance.
Rotate engine until #1 INTAKE cam lobe is point upward, 90 degrees to the gasket surface, then measure #1I & #2I clearance
Rotate....................#4 INTAKE cam.................................................................................................................#4 & #3I clearance
It couldn't be easier. No messing around looking at the 1T or 4T marks on the crank indicator. Just look at the cams and go...