Am I being paranoid?

[darrsi]

Did you buy the same brand of tyre?

[ade the blade]

If the wheel's misaligned it can cause a clunking sound as the chain tries to correct itself.
You sure the chain's not too tight?

+1.............was the chain adjusted on the centre stand ?

[packie]

I can hear this over my pipe with the visor open, im pretty confident its the chain on mine as in engine off coasting it sounds very much chain like, I need to check the tension etc which I havent done yet.

Ya...after adjusting and measuring the chain slack, I make a habit of checking it again after tightening up Axel. Someimes the slack can go out again with less slack.

Also, have you torqued the axle nut? I torque every bolt. If your nut is not torque up correctly with enuff pressure, the wheel and sprocket could possibly be not over fully to the drive side. Even an extra twist or two could maybe leave you out by a few milimetres which would make the chain running at a slight angle between the both sprockets and not running or seating properly around the sprockets.

[Skippernick]

Ah chain was checked when on the centre stand!
Everything was torqued up to the correct torque.


Just checked the manuel and it should be checked on the centre stand.


I do have a loud zorst, it has been off for a month or so, so i would of thought i would of picked up on it. But is that me being paranoid. I also where ear plugs!


Same tyre bridgestone bt23.


I'm going to double check everything again tonight.

[Skippernick]

Well just double checked everything, the alignment was fine, but the chain tension may of been tight.
So i have readjusted it. Haynes manual says check slack when on the side stand, owners manual when on the centre stand. Gone down the haynes route this time, will try again over the week end.
Nick

[alexanderfitu]

The service manual says to check it with 2 wheels on the ground, ie on the side stand, I would go by that.

[unfazed]

Did you check the wheel bearings when you had the wheel off?

[ade the blade]

The service manual says to check it with 2 wheels on the ground, ie on the side stand, I would go by that.

+1......think about it, for example. you adjust chain on centre stand to say,40mm. then you flop bike down off stand and the weight of the bike settling onto the suspension knocks that down to 30mm play. then you ( and possibly a pillion ) jump on, knocking that down to 20mm or even less. now imagine you adjust it on centre stand to spec, but manual says this must be done on side stand...........instant guitar string!! everything stressed to the max...bearings, output shafts etc, and that nice shiny chain just waiting to take your calf (or worse ) off. food for thought i think. ride safe

[Skippernick]

In my defence your honour i only followed the manual.

[ade the blade]

In my defence your honour i only followed the manual.

hey matey, don`t think for one minute i was aving a go at ya........far from it. I was just putting a comment in general out there for all peeps to consider, not aimed at you in particular. If it came across like that, then i really do apologise......no harm intended just trying to safeguard others from bad mistakes i have seen people do over the years, thats all   ride safe ! Ade xxx just for you :rollin :rollin :rollin :rollin

[red98]

you upsetting foccers ade  .......cant get a reply from CRH but when i do he will sort you out  :rollin :rollin

[packie]

[quote author=alexanderfitu link=topic=6044.msg54491#msg54491 date=1359495006]
The service manual says to check it with 2 wheels on the ground, ie on the side stand, I would go by that.

+1......think about it, for example. you adjust chain on centre stand to say,40mm. then you flop bike down off stand and the weight of the bike settling onto the suspension knocks that down to 30mm play. then you ( and possibly a pillion ) jump on, knocking that down to 20mm or even less. now imagine you adjust it on centre stand to spec, but manual says this must be done on side stand...........instant guitar string!! everything stressed to the max...bearings, output shafts etc, and that nice shiny chain just waiting to take your calf (or worse ) off. food for thought i think. ride safe
[/quote]

Obviously you have made up those figures and are wild guessing??. I doubt if you went away and checked one or two people up on a bike and measured the chain slack after a centre stand adjustment.

Now what about the other side to the story?......

So, Haynes recommend that you adjust the chain on the sidestand with the same specs. What if they are wrong? Why do you assume that Yamaha got it wrong? I mean, they made the bike so I think that they would know what spec is best and the way to perform that function....no?

If there was a danger of chains snapping or if chains have snapped in the past because of this inaccurate information that Yamaha supplied, they I think they would have been sued to hell and all those Service Manuals would be forced to be withdrawn. I have no heard of any such thing lawsuits or withdrawal of their manuals.


One thing that I didn't see on this thread that the OP might check, which is the actual chain condition itself? Did he measure it in various spots and measure a section of the links like even the Haynes Manual suggests? Maybe he did and I missed it on the thread somewhere. But I know that my chain is being replaced as we speak as it has tight spots in certain parts of the chain and the slack would be 40mm in some areas and 30mm in other areas. Now if I had adjusted my chain to the minimum setting of 30mm on a slack spot, wouldn't the the tight spot of the chain be a way too tight and make plenty of noise around the front sprocket?

[alexanderfitu]

So haynes matches up with the yam service manual, however if the slack was adjusted on the center stand, then the slack would go down, when one person sits on it normally, and then go down again with 2 people on it.

That is Ade's point, that the tension would be too high with 2 people on it for example, possibley runing the output bearing, possibly heating the chain up to cause failure etc. Its not the numbers that are being argued.

Oddly, the service manual says to check on the sidestand, the owners manual says to check on the center stand, and haynes says to check on the side stand. You can only assume that the sidestand and center stand measurements dont make that much difference (seing as the weight is still on the back wheel when on the center stand), maybe 5mm out if that?

[richfzs]

The weight isn't on the back wheel, when on the centre stand. Not on mine anyway, and it's been that way from new. Nor on any other bike I've put on a centre stand.

Sent from my HTC Desire S using Tapatalk 2

[red98]

interesting views here.....i find it easier to adjust chain with bike on centre stand at the tighest point in the chain if you have one,when finished adjusting take the bike off the centre stand and let bike settle and then give it another  quick check.......each to their own of course......there must be a difference in slack between the two methods,parhaps 40mm suits both having 10mm tolerence to suit both methods   

[red98]

will change again with pillion as atb has already mentioned......easy fix.....dont date fat birds  :rollin :rollin

[packie]

So haynes matches up with the yam service manual, however if the slack was adjusted on the center stand, then the slack would go down, when one person sits on it normally, and then go down again with 2 people on it.

That is Ade's point, that the tension would be too high with 2 people on it for example, possibley runing the output bearing, possibly heating the chain up to cause failure etc. Its not the numbers that are being argued.

I don't know if the tension would increase at all with pillions aboard as I never checked it and neither has Ade. That's why I shot down his figures and his assumptions until he comes up with hard facts.

Ade assumes that when a pillion sits on the bike that the slack will be "taken up" because it seems obvious to the mind....yes?

He also assumed that when you make an adjustment on the centrestand and then drop it on the sidestand that the slack would be taken up there also because that is obvious to the mind also and commonsense....yes?. But I know for fact that the latter one is FALSE from tried experience. There is no difference in adjusting from the centerstand and sidestand so the OP wasted his time!

Hard to believe isn't it? Do it yourself. Put a mark on a link on your chain. Take a measurement on the centrestand and then from the sidestand.....no difference!!  The obvious and common sense is blown right out of the water. So adjusting on the centrestand is quite safe.

Also, until somebody takes a measurement with and without a pillion on board, I'll keep an open mind too on weather the slack is been taking up there too and by any significant difference. I like to deal in hard fact and not wild assumptions. Cheers.

[packie]

Sorry about the last reply....the quote and response got jumbled up!! :'(


Here's my response.............



Ade assumes that when a pillion sits on the bike that the slack will be "taken up" because it seems obvious to the mind....yes? But has anyone checked it out as to be actual fact and but how much slack is it taken up?

Ade also assumed that when you make an adjustment on the centrestand and then drop it on the sidestand that the slack would be taken up there also. This is obvious too and commonsense....yes?. Not so.  There is no difference in adjusting from the centerstand and sidestand so the OP wasted his time!  :z

Hard to believe isn't it? Do it yourself. Put a mark on a link on your chain. Take a measurement on the centrestand and then from the sidestand.....no difference or any difference of any significance that would impact your riding condition!!  The obvious and common sense is blown right out of the water. So adjusting on the centrestand is quite safe.  :guitar

So, until somebody takes a measurement with and without a pillion on board, I'll keep an open mind on that one too! I like to deal in hard fact and not wild assumptions.  :uhuh

[alexanderfitu]

No worries.

The only way the chain slack would be the same, regardless of swing arm position, would be if the pivot point was on top of the front sprocket. Which would be difficult!

As such, the chain slack will change with the swing arm position. See below image:





Not by much granted, and it only really affects bikes with bigger distances between swingarm pivot and the chain. not sure what the maths is for for fazer.

[alexanderfitu]

All this talk of chain tension made me go out and check mine. less than 20mm  free play!


I hadnt checked it since I bought if from the dealer, all sorted now