front sprocket nut

[chrischristopherson1313]

Nut on the front sprocket it's loose. I can screw it with my fingers (not even using power)
Is it normal or it should be tight.
The screw it's still on the shaft hold by washer

[Fazerider]

It should be tight, but it is a common problem.
http://foc-u.co.uk/index.php?topic=92.0

[chrischristopherson1313]

Ok luckily the nuts didnt come of yet
I have ordered bigger nut from yamaha.
Do you think it's safe to run a bije for those couple of days until new nut come?

[Fazerider]

No, it's really not to be recommended.
Having said that, the early Fazers have a plate screwed to the inside of the sprocket cover which prevents a loose nut from actually falling off the end of the shaft and a lot of us have probably ridden quite a long way with it in that condition without realising.

[His Dudeness]

What condition are the threads in?

[chrischristopherson1313]

Was trying unscrew with fingers only. Although it's loose doesn't come of so proboly thread it's damaged a little. Will wait for new nut first and then will try to unscrew it.

[darrsi]

Can i just ask what the exact year of your bike is please on behalf of someone elses curiosity?

[chrischristopherson1313]

1988

[tommyardin]

These front sprocket nuts are a real problem it seems. As I mentioned in another post on here my 2003 FZS600 foxeye still has the original 9mm nut fitted, I have the upgrade kit 12mm nut and washer on the bench in my shed ready to go, but, try as I may I cannot undo the one that's on the bike.
I have straightened out the lock/tab washer 32mm socket with 500mm bar and put all the pressure I can on it, had a mate sit on bike, in gear, brakes on and fucking near burst a blood vessel trying to loosen that bastard to no avail. One of the other foccers in here came up with the solution which I have yet to do, that is ride down to a friendly mechanic pop the sprocket cover off the bike and get him to put his air/impact wrench on it, nip it back up tight by hand ride home and complete the task. I thought KingKong was an American but the cupid stunt worked for Yamaha in the front sprocket nut department when they built my bike.


But what a great bike they are though, great for pottering about in town and great for tear arseing about down country lanes, basically a brilliant all rounder with a nod towards the retro look, I love it.

[tommyardin]

The fact that Chris's nut rotates but does not actually come off does not bode well, if it was the threads in the nut that were gone the nut would come off easily, because the orifice in the nut would be larger. It points to the threads on the shaft being stripped  :'( I really hope for his sake that is not the case as I understand it is a complete strip down to replace the shaft.
Although one member in here tack welded the nut on his shagged shaft and has ridden the bike for a number of years like that. (Not ideal though, but a solution as a cheap but practicle workaround)


Good luck Chris keep up posted as to how it pans out  :thumbup

[darrsi]

1988

Okay, i'll meet you half way and we'll call it a 1998.

FAZERSHARP, are you reading this?  :pokefun  :rollin

[chrischristopherson1313]

would be almost my age
Yep it's 98 typed it wrongly

[fazersharp]

[quote author=chrischristopherson1313 link=topic=19958.msg230465#msg230465 date=1461740975]
1988

Okay, i'll meet you half way and we'll call it a 1998.

FAZERSHARP, are you reading this?  :pokefun  :rollin
[/quote]
Im here ---- before we go to deathcon 5
Chrischristopherson could you tell us (me) how many miles your bike has done

[darrsi]

[quote author=darrsi link=topic=19958.msg230474#msg230474 date=1461750093]
[quote author=chrischristopherson1313 link=topic=19958.msg230465#msg230465 date=1461740975]
1988

Okay, i'll meet you half way and we'll call it a 1998.

FAZERSHARP, are you reading this?  :pokefun  :rollin
[/quote]
Im here ---- before we go to deathcon 5
Chrischristopherson could you tell us (me) how many miles your bike has done
[/quote]

What's that gotta do with the price of fish?  :lol

[fazersharp]

[quote author=fazersharp link=topic=19958.msg230479#msg230479 date=1461757799]
[quote author=darrsi link=topic=19958.msg230474#msg230474 date=1461750093]
[quote author=chrischristopherson1313 link=topic=19958.msg230465#msg230465 date=1461740975]
1988

Okay, i'll meet you half way and we'll call it a 1998.

FAZERSHARP, are you reading this?  :pokefun  :rollin
[/quote]
Im here ---- before we go to deathcon 5
Chrischristopherson could you tell us (me) how many miles your bike has done
[/quote]

What's that gotta do with the price of fish?  :lol
[/quote]
Ok I am waiting for him to say 24k or more in which case the nut will of been off to already replace the sprocket---- meaning it is not a factory fitted un touched nut that has came loose, and therefore still maintaining my pet theory.

So chris do you actually know if it has had a new chain and sprocket set in the past

[chrischristopherson1313]

28k but the nut it's still there just loose a bit.
It's original nut and sprocket looks as it was changed

[chrischristopherson1313]

Will wait for new nut and then see
I am optimistic

[fazersharp]

28k but the nut it's still there just loose a bit.
It's original nut and sprocket looks as it was changed

Ok thank you for the info

Just as I thought 28k and already been replaced

DARRSI. are you reading this?  :pokefun (I believe it goes  ) :nana

[fazersharp]

chris
for some background info on this banter see here http://foc-u.co.uk/index.php/topic,19504...#msg225613

[darrsi]

[quote author=chrischristopherson1313 link=topic=19958.msg230482#msg230482 date=1461761379]
28k but the nut it's still there just loose a bit.
It's original nut and sprocket looks as it was changed

Ok thank you for the info

Just as I thought 28k and already been replaced

DARRSI. are you reading this?  :pokefun (I believe it goes  ) :nana
[/quote]

The sprocket may have been replaced, but still the original nut!
Hardly surprising it's done over 24K on an 18 year old bike!