FZS 600 wobble - bearing collapsed.

[Beehive Bedlam]

Yesterday evening I felt some wobble under acceleration (can't tell if it's the rear end or front) between 30 - 50 MPH I think once home quickly forgot about it until this morning when it happened again.

I can't identify what is causing it so far what I've checked:

Tyres PR3 - Good.

Tyre pressure - Good.

Tyres - Balanced.

Front and rear wheel bearings - no play in wheels - Good?

Steering head bearings - Checked with front wheel off the floor no knocks or movement - Good?

I have recently around 500 miles ago upgraded the standard rear shock with an R6 one the conversion kit which consisted of new dog bones/spacers/washers/high tensile steel bolt. This is a well known modification for the FZS 600.

[herulach]

Sounds like you've fucked something up putting the rear end back together. Rear wheel straight, chain right length etc?
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[Beehive Bedlam]

[Pjay]

Wheel alignment?

Edit*
Just read that it's been asked...

[jjdugen]

Front tyre.
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[Hahadumball]

what sort of wobble?

theres light rear end wobble
massive tank slapper
and everything inbetween.

odd youre having issues with wobbles, mine was so planted and only had 1 wobble and that was when i had tyre slime in the rear tyre.
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[SQL]

[Hahadumball]

[Beehive Bedlam]

The problem made its self known this morning.

Wheel bearing collapsed?
https://i.imgur.com/I0BniFq.jpg

Luckily I hadn't got to the motorway and it failed at relatively low speed just five miles from home.

I managed to limp it back home.
https://i.imgur.com/d8v4eGd.jpg

Wheel out. Looks like sprocket carrier is fucked?
https://i.imgur.com/QIWgUmW.jpg

https://i.imgur.com/aYFyFAw.jpg

[Meatybeaty]

Hi Ash ,not a problem this one , just a matter of getting out the rear wheel and drifting out the old bearings , if you have got the bearings already put them in the freezer ,it will help when you come to install them, its a matter of keeping everything clean when you install them and dont force them in , if you have got some long bolts and sockets you can make a puller. Have a look at Haynes manual Section 7;20

[Meatybeaty]

PS, are you doing all bearings or just the sprocket carrier

[zark]

Done mine recently, just coz it was apart for other stuff. The wemoto kit for the rear bearings is fab. 2 wheel bearings, seal for offside, carrier bearing and seal, little over 20 ponds... even I got them fitted without mucking it up, using a long screwdriver to twat the old ones out, and a big socket to nudge the new ones in. Don't forget the spacer in the carrier bearing centre.
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[Beehive Bedlam]

I have a sprocket carrier bearing along with two wheel bearings.

Can someone confirm whether or not the sprocket carrier is fucked?

[Meatybeaty]

You wont know that until you get whats left of that chewed bearing out, but expect the worse, but the outer race of the bearing might have saved it

[Beehive Bedlam]

Note the smashed off bits on the sprocket carrier.

https://i.imgur.com/cSenCz1.jpg

[Meatybeaty]

Buggered Ash, need a new one there

[Meatybeaty]

https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2055119.m570.l1313.TR0.TRC0.H0.Xyamaha+fzs600+2001+sprocket+carrier.TRS0&_nkw=yamaha+fzs600+2001+sprocket+carrier&_sacat=0

[Beehive Bedlam]

[Meatybeaty]

Just one of those things Ash, I think you can see some rust on the wheel bearing , so you have had an egress of water over time and they have just rusted, are your bearings of the sealed type or have you bought dust seals as well

[chris-red]

The looks like it has been fucked for a while, I'd to all 3 bearings personally.
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[Beehive Bedlam]

Removed the fucked carrier to replace the wheel bearings.

https://i.imgur.com/8tzyngU.jpg

https://i.imgur.com/WyCSd10.jpg

One of the bearings sprocket side has been eaten by the wheel and the spacers also fell out with a long tube.

https://i.imgur.com/5a15Va8.jpg

I'm now confused the Haynes suggests to use a block of wood to lever out the old oil seal and refers to an illustration which is a very grainy black and white picture.

Oil seal? The black bit I have savaged? I've ceased before I damage the wheel.

https://i.imgur.com/mrZ9Qsa.jpg

[Meatybeaty]

The oil seal is useless now Ash just prise it out , your gonna need new ones, then its a matter of drifting out the bearing , the block of wood is only to get some leverage when you get your screw driver under the lip of the seal

[Beehive Bedlam]

Video of what I mean.

https://tinypic.com/r/9prybc/9

Is the outter black bit supposed to come out so I can twat the bearing out from the other side? I can't see any circlips or anything holding it in place.

[sickpup]

When you checked the rear wheel did you try wiggling the sprocket carrier?

[Meatybeaty]

Yes Ash , but be careful when you attack the bearing from the other side ,put two lumps of wood under the rims to keep the brake disc of the ground so as not to damage it ,if there were circlips there they would be underneath the oil seal