Author Topic: sprocket nut (Read 11890 times)

Val · « **Reply #25 on:** 14 July 2015, 10:27:39 am »

Quote from: unfazed on 14 July 2015, 08:48:15 am

Quote from: Panthor on 13 July 2015, 10:25:14 pm
Quote from: unfazed on 13 July 2015, 07:18:25 pm
The video is very good, but he did not torque up the nut properly.
Can you explain as to how it wasn't torqued properly??
Also just for info my bike was on 16k miles

The old fear of 90Nm recommended and 80Nm used.

Mine failed originally at 15682miles, a friends failed at 17100miles, but I have come across one on a Thundercat which failed at 12750miles.

I have tighten all I have worked on to 90Nm withou issue

The Fzs1000 is 85 on a 9mm nut, granted the threads are coarser.

I am with unfazed on that just changed mine and used 90nm

His Dudeness · « **Reply #26 on:** 14 July 2015, 12:22:55 pm »

Quote from: fazersharp on 13 July 2015, 11:28:02 pm

Im still saying that I have not seen a single 98 owner who has had this issue with an untouched factory fitted nut.
My personal theory is that the 1st bikes came out of one factory and then when the sales took off more outsourced factory's were needed and that is why later models suffer from the wrong spec size shaft being milled from the other factory's.
My 98 17k miles no problems yet although I do have the new nut and monitor the oem one and will change when i do the sprocket and chain

fazersharp · « **Reply #27 on:** 14 July 2015, 01:13:08 pm »

It all started a couple of years ago, after reading about it here I rang local dealer who rang yam with my reg and engine number and they came back to me to say the note does not cover my bike.
Then on looking on here I started to see a pattern in that I could not find a 98 owner who had the issue, that was before sinto and snakeyprince joined so now there are another 2 98s to add to the list of (as yet ) unaffected.

If the issue is an undersized output shaft then I would deduct that those shafts were not made in the same factory as the correct ones, I propose that 98 shafts were all made in one factory and later bikes all over the place leading to a hit and miss on the shaft size / nut problem

Fazerider · « **Reply #28 on:** 14 July 2015, 01:55:39 pm »

Quote from: fazersharp on 13 July 2015, 11:28:02 pm

Im still saying that I have not seen a single 98 owner who has had this issue with an untouched factory fitted nut.

Have younger FZS600s suffered a nut-shedding incident with an untouched nut?

Dead Eye · « **Reply #29 on:** 14 July 2015, 02:00:57 pm »

Since the first ones were made in 98 I doubt it

fazersharp · « **Reply #30 on:** 14 July 2015, 02:48:20 pm »

98 is the youngest and as far as evidence (here at least ) has shown the issue has not affected them

Here is my post about this in 2013 http://foc-u.co.uk/index.php/topic,9920.msg101931.html#msg101931

Panthor · « **Reply #31 on:** 14 July 2015, 03:02:28 pm »

Wouldn't the 98 be the oldest fazer.
My 2003 is younger and the nut was untouched and I discovered the free play on it so changed it

Dead Eye · « **Reply #32 on:** 14 July 2015, 03:10:10 pm »

My bad, definitely some confusion with younger vs older haha

fazersharp · « **Reply #33 on:** 14 July 2015, 03:13:13 pm »

I think what fazer rider meant was younger being - older, as in made before 98

So the 1st fazer fzs 600s made in 98 are ok and its the later (younger ) models 99/2000/2001 etc that have the issue

Quote from: Fazerider on 14 July 2015, 01:55:39 pm

Quote from: fazersharp on 13 July 2015, 11:28:02 pm
Im still saying that I have not seen a single 98 owner who has had this issue with an untouched factory fitted nut.
Have younger FZS600s suffered a nut-shedding incident with an untouched nut?

The answer is YES and its only the younger (99 onwards) that are affected

darrsi · « **Reply #34 on:** 14 July 2015, 06:35:40 pm »

fazersharp, I wonder if the small fact your bike has never seen rain before has anything to do with all your nuts and bolts remaining firmly in place?

sinto · « **Reply #35 on:** 14 July 2015, 06:58:05 pm »

Quote from: darrsi on 14 July 2015, 06:35:40 pm

fazersharp, I wonder if the small fact your bike has never seen rain before has anything to do with all your nuts and bolts remaining firmly in place?

My nuts have seen plenty of rain and they're firmly in place I think

Oops, just realised your talking of nuts on the bike

fazersharp · « **Reply #36 on:** 14 July 2015, 07:00:24 pm »

Well that could explain mine but what about the other 98s

And you are wrong -- my bike has seen rain because I have showed it some pictures,

darrsi · « **Reply #37 on:** 14 July 2015, 07:32:54 pm »

Quote from: fazersharp on 14 July 2015, 07:00:24 pm

Well that could explain mine but what about the other 98s

And you are wrong -- my bike has seen rain because I have showed it some pictures,

You could at least drive through the odd car wash every now and then as a treat.

fazersharp · « **Reply #38 on:** 14 July 2015, 07:55:12 pm »

I sometimes ride through damp patches where the sun is shaded from the road

sinto · « **Reply #39 on:** 14 July 2015, 08:49:25 pm »

Quote from: fazersharp on 14 July 2015, 07:55:12 pm

"I sometimes ride through damp patches"

Oh no

This could start a whole new thread

anutz · « **Reply #40 on:** 16 July 2015, 09:14:06 pm »

just be careful the transmission is not in gear so you don't rive the hell out of it, make sure someone has the back brake on and use the chain to hold/oppose the thing..

paulchucky · « **Reply #41 on:** 16 July 2015, 09:27:42 pm »

best thing is to be sure your on the safe side

get it sorted !

after all a man has to be sure about his NUTS

sinto · « **Reply #42 on:** 16 July 2015, 09:30:43 pm »

Quote from: paulchucky on 16 July 2015, 09:27:42 pm

after all a man has to be sure about his NUTS

remember what you've been told about checking your nuts regularly too

anutz · « **Reply #43 on:** 16 July 2015, 09:52:18 pm »

if anything goes wrong i always reach for my nutz......look at my username "anutz"......

sinto · « **Reply #44 on:** 16 July 2015, 10:21:34 pm »

Quote from: anutz on 16 July 2015, 09:52:18 pm

if anything goes wrong i always reach for my nutz......look at my username "anutz"......

There was me thinking you couldn't spell

Freck · « **Reply #45 on:** 18 July 2015, 07:32:28 pm »

Hi fazersharp, here's my experience after your request for more info from 98 owners.

I've not long had my 98 600 and as yet haven't ridden it as I'm in the process of giving her a tidy up.
After reading about the possible issue relating to the original 9mm nut, and finding that the chain on sprockets would benefit from renewing, I opened up the sprocket cover and found the mess shown in the pics below.

It looks like the front sprocket has never been touched (bike has done about 42k

) and still has the original 9mm nut. Thankfully, it was still tight, the retaining washer folded over on 2 sides.

Flattening off the washer I undid the nut which was a little stiff but not too bad, and the threads were all intact. I'd say that it would never have come loose on its own. I will, however replace it with a new 12mm nut and retaining washer and a little loctite to be on the safe side.
Obviously, I'll be cleaning up the gunk before fitting the new c&s kit

Steve

fazersharp · « **Reply #46 on:** 18 July 2015, 08:03:22 pm »

Thanks for that Freck I dont meant to hijack the OP but as he has a 98 it is sort of relevant.
Be good to also post up your "after" cleaning photos

Freck · « **Reply #47 on:** 18 July 2015, 08:09:30 pm »

Quote from: fazersharp on 18 July 2015, 08:03:22 pm

Be good to also post up your "after" cleaning photos

Yep, no problem. It might be a while before I get to post them though as I'm currently 4000 miles away from home with work

Steve

fazersharp · « **Reply #48 on:** 18 July 2015, 08:14:18 pm »

Thats a heck of a commute

snakeyprince83 · « **Reply #49 on:** 18 July 2015, 11:06:11 pm »

changed it today, it wasnt loose enough that i could turn it with my fingers but it didnt take much with the wrench at all, came right off, i tightened it to 80. Was much easier than i thought. Next is to save some pennies for the retrofit labs headlight conversion kit so i can see where i'm going in the dark, cheers all!