Final Drive Noise On CenterStand(ad infinitum)

[thatmanstu]

2006 R12RT . Bike has over 102k miles and runs like a dream. Has never had any FD issues across previous two owners.
Recently detected noises from FD/DS...Removed Swing Arm and DS to find a fish-mouthed front boot on Trans end and typical resulting corrosion on DS U-Joint(Trans end). Sent the DS away and received and re-installed a Rebuilt DS(not same one). With bike on Center Stand and running in gear, lots of clanking. Test riding(no helmet or earplugs) produces nothing abnormal. Coasting at speed in Neutral produces nothing abnormal. Coasting from speed to full stop with engine off produces nothing abnormal.

 

[deilenberger]

The clanking isn't the driveshaft. It's the gears inside the transmission and rear-drive. There has to be free-play in gear drives for them to work and be able to shift. The free-play can "stack up" (ie - add up) enough that you can get significant clatter from the gearbox area or rear-drive area when the engine is running, the bike is in gear and the clutch is engaged (ie - engaged as in "coupled").. and the rear wheel is turning. This can be made worse if your engine is idling a bit rough, since it's continually accelerating and deaccelerating as each cylinder takes it's turn to fire.

The bike isn't really made to run in gear on the centerstand. If it sounds normal under normal riding conditions - chances are excellent - it's normal and there is nothing to be done.

 

[thatmanstu]

Thanks very much...

Have received like responses elsewhere and just came back off a nice ride after several weeks of downtime. This explanation/reassurance was just what I needed as well as what I suspected. The affirmation is right on time. Thanks again for taking the time to respond and share...most appreciated...