front sprocket nut + SERVICE NOTE 2005-12A

[Freck]

My front sprocket and nut is original I think on my 98 with 27,500 miles bike, does this, in your opinions, mean I don't need to change the nut?
I've just purchased the new nut and washer and was going to replace them next month when I get a new chain and front sprocket.
Cheers.

I think you're right to change the nut as Yamaha have highlighted the old 9mm one as a potential safety issue, I'm certainly going to make sure mine has the thicker one before I start riding it.
As an aside, when you get your new chain it's recommended that you change both front and rear sprockets at the same time ( wasn't sure whether you'd just missed that out of your post) 


Steve