I've never used it before, but I'm trying Dupont Teflon spray now with no complaints so far. I clean with a rag "lightly" saturated with mineral spirits, dry with a clean rag, and re-apply the Teflon. Not enough miles on my '09 to determine if it affects wear.
WD-40 should keep it clean of debris, but I'm not sure about it's long term lubricating qualities. I'd probably follow up with a chain lube that's a bit higher in viscosity. I figure the WD is flung off pretty quickly once you ride.
I'd be hesitant using a power washer on any part of my bike. Something about forcing water into areas it wasn't meant to be, puts me off. I hand wash with water under faucet pressure only. Takes a little longer, but is part of that karma thing I've always had with my machinery.
Everyone has their own procedure and preferences. Go with good common sense and you'll be fine.
On point: Unless you plan ratio changes, why bother using anything other than factory sprockets and chain?
"I don't want a pickle, I just want to ride my Motor-sickle"
Last edited by VerstehenZee; 09-22-2010 at 12:13 PM.