I just put an order in for a ‘22 390 RR-S. I Downloaded the owners manual to get familiar with the bike.
I am really surprised at the maintenance requirements at 90 hours of use.
The manual shows these items should be replaced at 90 hours:
Countershaft & crankshaft bearings
Connecting rod
Piston
Gearbox bearing (crankcase side)
Water pump seals
Oil pump control gears
I have never owned a vehicle that needed this level of ‘maintenance’
Am I missing something or is this implying a complete engine rebuild after 90 hours of ‘normal’ use?