Just bought a 92 Nighthawk 750, about 20k miles on it. The owner had recently changed the oil. I noticed some high-rpm clutch slip, only when you are really banging on it. Apparently this bike is a little more difficult to change the clutch on than your average Japanese standard, so I'd like to try changing the oil first in the hopes that maybe the guy just put some 5w-30 car oil in there or something.
So the question is - I was going to go with Rotella 15w-40 dino oil, run for a bit and then change the oil again. Is there anything I can add to the Rotella to "clean" the clutch plates? Like Sea Foam, Marvel Mystery oil, eye of newt, wing of bat, etc.?
So the question is - I was going to go with Rotella 15w-40 dino oil, run for a bit and then change the oil again. Is there anything I can add to the Rotella to "clean" the clutch plates? Like Sea Foam, Marvel Mystery oil, eye of newt, wing of bat, etc.?