Weird sound

[Michael Esfeld]

I've been hearing this sound coming from the rear recently. I'd characterize
it as kind of a clicking/grinding sound that occurs only at slow speeds and
in first gear. I took it to a Yamaha dealer and one of the tech guys rode it
and couldn't figure it out, thought it was the ABS activating. I don't think
so. Bike has 14k on it. Chain isn't loose. Anyone else experience this
sound? Maybe if I get down to Goldendale next week we could figure it out?