Blinkers

I assume you want neutral ,2,3 . This is what you do split engine down to the shift drum (shift cam) remove from motor. You will notice three groves around the circumference these groves move the shift forks to their appropriate positions . drill holes in these grooves at the appropriate places to create stops(use roll pins in the holes) and wont allow the gearbox to change to the gears you don't wont.

If you have early R1 calipiers they are a straight bolt on to any of the YZF750s however there are some other models that have the same design of caliper but the mounts are different. I would say you have picked up the wrong calipers. Why are you doing the conversion? Apart from looks the original six spots work a treat with the right pads (DBR racing) Hope that helps cherrio