Quote:
Originally Posted by
Shambles25
Hi, I had a 3rd gear failure on 2012 xt660z. 3 No. dogs were found in crankcases when clutch cover was removed. Gearbox started making clacking noises which at first I thought was chain clatter, however as noise got worse it became apparent it only happend in third gear. As I was on a european trip I carried on riding the bike for a further 2000 miles with third gear getting harder to select and not being able to change up to 4th. Fortunately the bike made it home and on removing the clutch cover and clutch I found the broken gearbox parts sitting on the bottom of the cases. I haven't got round to stripping the engine yet to see the full extent of the damage. miles 18000.
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Thanks for this information. I will add it to the database.
I am still waiting for a reply from Yamaha relatinging to my last communication, which was three months ago! Time to chase them up again me thinks.
BTW, your bike is very unlikely to be a 2012 model as its engine number comes from a sequence issued in... you guessed it 2009! It falls slap bang in the middle of the range of bikes that have exhibited this problem. I would guess that it was unregistered old stock in 2011 and then bought and registered?
FYI - The affected engine range based on data collected is: M311E-006404 to M311E-0009244
Note: I've removed the frame and engine numbers for security - we don't want anyone cloning your bike!