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.
Engine No: M311E0007353
vin No: ZD0DM021000007619
1st Reg:16/03/2011
Country: UK
Mileage 18000
3rd Gear