Front sprocket nut

[Val]

I clean and inspect after or before every 3 or so rides as I don't use it as an everyday bike so I like I keep it clean (that's actually dirty at the moment).
I thought it shouldn't move but thought I'd check. Right off to the dealer to pick up the new nut and washer tomorrow then.
Thanks guys

Just make sure they give you 90179-18006 nut. There has been a cases when Yamaha has sold the old 8mm nut.

http://www.ebay.co.uk/itm/141276105948?_...EBIDX%3AIT