Dreaded front sprocket nut issue

[fazersharp]

Whether the sprocket has been replaced or not, or whether the nut has been under or over torqued, the fact remains it'll still have the same shaft and the same 9mm nut

Its not the torque or the nut - its the shaft that is wrong. The talk about torque is that if someone has reported a 98 with the issue but then it transpired that the sprocket has been replaced before and so it canot be rulled out that the last owner did not re torque it properly.

No I don't trust yamaha but no one has reported a 98 with the issue - on an original untouched factory fitted nut.