The front sprocket nut and washer saga

[Dead Eye]

Just loosen the rear axle bolts, but you may even be able to get it off without doing that to be fair. I managed it on my fire damaged one as at the time the rear wheel was stuck solid and the axle bolts weren't having any of it

[elbrownos]

I went to Loughborough Yamaha today to get the replacement front sprocket nut.
It was only 9mm so I didn't buy it. They insisted this is the current one but knew nothing of the saga.
Any ideas?

[Chris]

Make sure and quote the part number of the new one to make sure and get the right one. 

Chris

Edit: Part number for new 12mm nut + washer is 90891-10124

[darrsi]

I would've told them to make a bloody effort to find out and do their job!
Give Fowlers of Bristol a ring and order it from them, they'll ask you for your chassis number so have it ready, it's on the frame at the front of the tank.
I haven't got the part number to hand but it's on this forum so do a search for the correct part number.

[gerkin]

I went to Loughborough Yamaha today to get the replacement front sprocket nut.
It was only 9mm so I didn't buy it. They insisted this is the current one but knew nothing of the saga.
Any ideas?

granbys said the same to me ,yamaha dont want to admit there is a problem

[gerkin]

nut and washer kit part no

[darrsi]

Yeah that's the jobbie, sorry i was using my phone earlier otherwise i would've searched for the part number, but do not accept any other number than 90891-10124

[Dead Eye]

Its also available from Wemoto - purchased this myself so can confirm that it is most definitely the 12mm nut

http://www.wemoto.com/parts/picture/yh-90891-10124/

[andybesy]

Loughborough yammaha fitted new nut and washer for me few months back . It was at my request and I supplied my own part which I got from wemoto. they didn't seem very clear on the issue and said it wasn't necessary , but did fit new one without too much complaint when asked and part provided.

[andybesy]

Oh and if you have the google-fu I was eventually able to find a pdf copy of the yammaha service bulletin, technically it was for early fz6 models but same issue, had print out at ready but not needed in the end

[Andy Clap]

I contacted my local Yamaha dealer, CMC Clay Cross, Chesterfield and mentioned the inspection notice.  They knew immediately about the problem and checked if my bike had been done, it hadn't, they ordered the parts and fitted them free of charge.
Can't fault the service that I have received from CMC. 
I would advise anybody to contact their dealer and mention the inspection notice to service before buying the parts.

Ditto.  My 2002 Fazer 600, not dealer serviced since 2004, CMC Clay Cross did it FOC with no quibbles at all.  This was about September 2012.  Even got a free coffee in the cafe while waiting!

[gerkin]

Its also available from Wemoto - purchased this myself so can confirm that it is most definitely the 12mm nut

http://www.wemoto.com/parts/picture/yh-90891-10124/

thats a good price , i paid 10.50 delivered from granbys 2 years ago

[Enceladus]

can anyone tell a numpty like me wether i need to sort mine please ?
and yes, i know its mucky!
took the photo's before i cleaned the crud out!
[smg id=819 type=preview align=center caption="sprocket 1"][smg id=820 type=preview align=center caption="sprocket 2"][smg id=821 type=preview align=center caption="sprocket 3"][smg id=822 type=preview align=center caption="sprocket 4"]

[ChristoT]

can anyone tell a numpty like me wether i need to sort mine please ?
and yes, i know its mucky!
took the photo's before i cleaned the crud out!

They *look* like the new type to me, but doesn't hurt to get a proper dealer to take a peek at it.

[Foxwood]

Doesn't matter really as the nut has held. Mine was visibly loose and only the locking washer was holding the sprocket on. I'd still recommend acquiring the new nut when changing the sprockets next time. Doesn't look like the nut is flush with the axle end as the new nut is, so could be that's still the old nut type. Only measuring the thickness would tell for sure. 9 mm -> old nut and 12 mm -> new nut.

[Enceladus]

Doesn't matter really as the nut has held. Mine was visibly loose and only the locking washer was holding the sprocket on. I'd still recommend acquiring the new nut when changing the sprockets next time. Doesn't look like the nut is flush with the axle end as the new nut is, so could be that's still the old nut type. Only measuring the thickness would tell for sure. 9 mm -> old nut and 12 mm -> new nut.

thanks
i'll keep an eye on it and change it next time i do the sprockets just to be safe.

[Foxwood]

thanks
i'll keep an eye on it and change it next time i do the sprockets just to be safe.

No problem.
A good indicator that something might be going wrong is unordinary noise coming from the chains/sprockets that doesn't cease with lubing or tightening of the chains. At least that's how I caught onto my problem at first.    Oh and found a few pics of the 2 different nuts to visualize them.


Edit: Left one is old and right one is new.

[Enceladus]

[quote author=Enceladus link=topic=3710.msg73750#msg73750 date=1367698738]
thanks
i'll keep an eye on it and change it next time i do the sprockets just to be safe.

No problem.
A good indicator that something might be going wrong is unordinary noise coming from the chains/sprockets that doesn't cease with lubing or tightening of the chains. At least that's how I caught onto my problem at first.    Oh and found a few pics of the 2 different nuts to visualize them.


Edit: Left one is old and right one is new.
[/quote]
many thanks

[Enceladus]

spotted this
not sure if it will help anyone.......
http://www.ebay.co.uk/itm/230918451728

[ChristoT]

spotted this
not sure if it will help anyone.......
http://www.ebay.co.uk/itm/230918451728

Why bother paying? If it's not been done Yamaha are still changing them for free!