batman wrote on 08/21/16 at 20:23:35:Locked up,you mean seized ? tell us more ,were you riding at the time?
Yep....help us know what happened. These engines die one of a few ways. Some folks seize the piston/cylinder when they run the engine out of oil. Some die when the cam chain tensioner comes apart. A few have died when an exhaust valve comes apart. Many more have died when the cam/rockers wear out from using oils with low ZDDP levels, and many more have died when they ran too low of idle speed and ruined the head where the cam journals spin in the head. There have been a couple of engines whose counterbalancer bearings have come apart and become really noisy, and a couple of bikes have had loose flywheel nuts that makes a horrible racket.