Possible chain stretch? How do I tell?
Hi folks - my Wee, now with 26,000 miles or so on it, seems to have picked up an odd... pulse. When accelerating hard from a stop, I definitely feel and hear a weird sound from the drive train. I wish I could identify it, but it's part pulse, part "grunch" sound, and sometimes it's regular and sometimes it's choppy. It's almost always when I push hard.
Now, the reason I think it might be chain stretch or damage is that I was able to even out on a slow stretch of road, and felt a regular pulse that did NOT match the revolution of the rear wheel. It was slower. 1-1.5 revolutions of the rear tire and I'd get another 'pulse'.
I'm guessing my chain is on the way out or out of alignment or something.
What's the best way to start debugging this problem? I am mechanical, but I no experience on the 650, and most of my motorcycle work has been on engines, not on drivetrains. If the answer will be "Buy a new chain, remove the rear wheel, and change the chain out" I may ask for someone in the Boston area to come over and help supervise. "nonononono, don't tighten that like that, do it like this."
(If anyone wants to do this this weekend, I'd be up for it - ya'll can also listen to my engine and tell me if the motion / 'clacking' noise I'm hearing is normal for the VStroms. I've never heard one running, so I'm not sure if the engine noise I'm hearing is correct).
So, anyone wanna listen to my bike, help diagnose a possible drive train problem?
Dave Shevett - KB1FWR - Berlin, MA
'04 DL650 "The Wee"
'78 GS850 "The Beast!"