Looking for input from the Pelican brain trust...
My Brothers 1983 Honda VF750F is now running well after 25 years of sitting in his garage and it has 21,633 on the odo.
He always used Honda brand 10-40 conventional oil in it, and was good about changing it on schedule right up till he parked it.
I'm currently playing a caretaker part for the bike, I intend to ride it some over the next couple years and then transfer it to my Nephew when he's ready for it.
The motor is not leaking or seeping any fluids after a full R&R of oil, antifreeze and hydraulic fluids, valve adjust and complete hydraulic systems rebuild.
History shows this type motor had a habit of eating camshaft bearings... I looked at them closely and don't see any abnormal wear on the lobes or any of the bearing surfaces I can see without pulling the camshafts.
I would like to help insure the internals are protected as best as I can, I've heard stories over the years that going from a conventional oil to a full synthetic can cause leaks and to "always stay with the same brand of oil".
If that is true and good practice, is there anything that I should add to the conventional oil that will help protect internals and not cause havoc with the wet clutch?
Top left on the cam is some break in grease, I smeared a little on all the polished surfaces before turning the motor over...
