2016 yamaha 200 crank shaft failure

[wavetamer]

Has any one had this issue , have had a crank failure and am being told the cause was valves tightening. a little confused, going by Yamaha tomorrow for visual

[ausnoelm]

Not too sure what you mean by valves tightening, or how that will damage a crankshaft

[boscoe99]

I am not seeing any connection between valves being adjusted with too little clearance and a crank shaft failure.

[99yam40]

let us know where it failed,
maybe close to a failed bearing?
pictures would be nice

[robert graham]

Just curious, but where did it fail/break?....in the center, or at one end?.....maybe just a bad casting/forging???.....Guess it's too late for any help from Yamaha?...but maybe worth a phone call....

[ausnoelm]

Has any one had this issue , have had a crank failure and am being told the cause was valves tightening. a little confused, going by Yamaha tomorrow for visual

Tap, tap, tap.....is this working? are you going to let's us know what you meant, or what actually happened?

[pstephens46]

Posted same thing at TOS.....

I’m guessing he meant the check valves got a little tight on the emasculator.

[ausnoelm]

Appears like we will never know what went on.

[pstephens46]

Appears like we will never know what went on.

If anything at all.