These are my notes on the '95 SeaDoo XP that I removed pump from
Oil Injection Pump
To disable the pump on your engine you must pull the intake manifold & remove the drive gear,
If using oil pump as block off plate, then hook the two oil nipples together with a piece of the oil hose to prevent air from being pulled in
You may also need to add some tension to the carb return spring as the oil pump spring is part of the return tension for the throttle cable
Good time to rebuild carb, New carb filter, New fuel diaphragm
Oil tank
You must leave your oil tank in because the rotax engine's rotary valve chamber must be kept submerged in oil.
Leave the 2-oil lines attached, one to the motor, and one leaving the motor, going back up to the reservoir (on top)
That is how the main bearings are lubricated.