9 foot-lbs torque on the cover bolts. There is no adjustment on the cam chain tensioner, its all automatic. The tensioner is under the cylinder and the chain is inside the front engine cover behind the centrifugal clutch. Haven't seen anything like your describing. If the chain was loose I wouldn't think you would hear it by turning the motor over by hand, only when the engine is running.
Possibly the valves are sticking in the guides?? Maybe the valves are bent and won't return unless the piston pushes them back up and the click you hear is the valves hitting the seats??? Just a guess at this point.
Does the machine run ok??
Possibly the valves are sticking in the guides?? Maybe the valves are bent and won't return unless the piston pushes them back up and the click you hear is the valves hitting the seats??? Just a guess at this point.
Does the machine run ok??