Join Date: Jun 2011
Location: East Central Iowa
Clutch plate residue, starter ring and pinion residue, crappy designed compensator residue, general wear and tear, and condensation from short rides on humid or wet days gives you a a bunch of nasty on that plug.
Worry about it?? Maybe. I have to look at the individual pieces to see if they are identifiable, but I'd be tempted to run it another 2500mi and see what you it looks like then. If it's rippin stuff up you may find out before then, but I doubt it.
I'm running Amsoil 75-140 gear oil in my primary, I figure with the metal to metal design of the compensator(old and new design) in these bikes, a lube that is designs for high shear loads and extreme pressure is probably a better idea.
Short-medium trips in the rain or high humidity areas will eventually cause fairly large amounts of moisture buildup in your primary, engine and transmission lubes. Every time the bike is ridden the engine, trans and primary warm up and push air out through their vents, and then when you shut them off they cool down and draw humid air back into the cases where it condenses, and lands in the oil sinking to the bottom of the cases.
People will say "oh by the time I get home it gets plenty warm enough to dry out". No, unless you're running 15-20mi minimum at highway speeds on a regular basis you're probably not cooking the moisture out of the oil well enough.
2015 RGU CVO........under continuous change......