Drive sprocket nut

[TonyW]

New owner here. I've just bought a 1999 Fzs 600 that's only done around 4000 miles. I've not passed my test yet (start training on the 23rd) so I'm using the time to fettle it a bit (not that it needs much) Just freeing off a sticky front brake piston and re-painting the main stand so far. On the advice of a forum member, I pulled off the drive sprocket cover and checked the drive sprocket nut. Its a 9mm thick nut. There's no sign of movement between sprocket, lock tab and nut. I'm pretty sure its the original chain and sprockets. So do I get a new 12mm thick nut and change it now or wait until I need a new chain/sprocket set and do it then?

[noggythenog]

Best change it asap, it only costs about £10,youll need tools to get it off & then back on at the right torque settings.


It was the first thing i did, not worth the riskofit coming off.


Tryusing the search function & type "fromt sprocket nut"


Youll get loads of info then.


Glad you cought it before it damaged anything 8)

[nick crisp]

I agree with Noggy, and I'm sure others will too. Bearing in mind that a well looked after chain kit can last thousands of miles, and from what I've seen and read about the damage a failure can cause (worst case you end up needing a new output shaft + what if it comes off when you're riding?), I'd just get the nut changed. Then at least you know you can relax on that issue. It's a pretty cheap bit of preventative maintenance, and whilst maybe not urgent right now, why wait til it is?

[noggythenog]

Attention-fazersharp is now kindly "bumping" his recent discussions on the issue for you to see.


What a good bunch we are on here.


No payment required, all i ask is that you welcome other new members & advise them the same when thetime arises.


Someone recently joined because their foxeye fazer 600 had stripped the shaft with the old nut on & it saddens me that good bikes are being trashed through no fault of their owners.


Theres allot of fazers out there & plenty still with the 9mm nut kick just waiting to happen.

[Buzz]

EDIT: Just noticed you were going to get the nut anyway so just ignore this.


Here's the link to the nut on Wemoto.  It IS the upgraded 12mm one (90891-10124-00) as I've stuck one on mine.

http://www.wemoto.com/bikes/yamaha/fzs_6...t_kit_oem/

[fazersharp]

I have another question on this. The yam tech bulletin for the 04 at least says for the garage to use loctite 620 on fitting the new nut. What have people used here

[Dead Eye]

I used elbow grease :|

I just tightened the nut up to 90Nm and have left it at that. I check it periodically with a torch and some prodding to make sure its still tight and haven't had any issues

[fazersharp]

and some prodding

Ok thanks --- but could you tell me were I can get this prodding from as I have looked everywhere and canot find any.

[Dead Eye]

Forgive me if that was sarcasm but the internet sucks at conveying that sort of thing...

Prodding (or poking) = I poke it a bit with a screw driver / socket / something to see if its loose. If the nut doesn't move then it isn't loose and all is fine

[darrsi]

Forgive me if that was sarcasm but the internet sucks at conveying that sort of thing...

Prodding (or poking) = I poke it a bit with a screw driver / socket / something to see if its lose. If the nut doesn't move then it isn't lose and all is fine

:lol

[fazersharp]

Sorry if it came over sarky as it was ment as a joke - should of put one of these  :lol  to make it clear, but that is like canned laughter on crap sit-coms when you do it yourself
seriously now -- what size socket will i need for the nut

[richfzs]

Divvent worry, fazersharp, it came over as a joke to me anyway :-) think Mr Eye must have spent too long on his computer last night :-)

[darrsi]

Sorry if it came over sarky as it was ment as a joke - should of put one of these  :lol  to make it clear, but that is like canned laughter on crap sit-coms when you do it yourself
seriously now -- what size socket will i need for the nut

http://foc-u.co.uk/index.php/topic,3432....l#msg27880

[Buzz]

...and I bought one of these on which to stick the nut.  Block of wood in the rear wheel and it came off easily.

[fazersharp]

Got it 32mm socket needed
There should be a seperate forum section where all of these nut threads can be put all in one place yes all the info is there but its all over the palce

[darrsi]

Got it 32mm socket needed
There should be a seperate forum section where all of these nut threads can be put all in one place yes all the info is there but its all over the palce

As in the service manual section!

[CRH]

I used elbow grease :|

I just tightened the nut up to 90Nm and have left it at that. I check it periodically with a torch and some prodding to make sure its still tight and haven't had any issues

....+1...did exactly the same and never budged 

[Dead Eye]

Sorry if it came over sarky as it was ment as a joke - should of put one of these  :lol  to make it clear, but that is like canned laughter on crap sit-coms when you do it yourself
seriously now -- what size socket will i need for the nut

Haha, no that was the problem, I honestly thought you were dead serious in your question  :lol

Figured I'd answer just in case you were - I'm always at my PC - its my default position

[fazersharp]

[quote author=fazersharp link=topic=9856.msg101143#msg101143 date=1379079817]
Got it 32mm socket needed
There should be a seperate forum section where all of these nut threads can be put all in one place yes all the info is there but its all over the palce

As in the service manual section!
[/quote]where that then

[Dead Eye]

In the Downloads section

http://foc-u.co.uk/index.php?action=down...iew;down=8