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Whining noise

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Post  Catnapper Sat Jun 06 2015, 21:58

Just been out on the bike & started to hear a whining noise, vague I know but's it all I can say to describe it.
I can't really hear where its coming from but is still evident when I have the clutch engaged.
Was thinking wheel bearings but have had a check on front & rear and there appears to be no excessive play in either. Also whilst free wheeling with no engine running I can't hear anything.
Is it just gremlins or any other ideas.
Just had new C&S so maybe need to look at adjusting??? (a bit of inspiration then)

Just remembered I have just changed the clutch cable & adjusted it both ends so I'll maybe look at that aswell


Cheers


Last edited by Catnapper on Sat Jun 06 2015, 22:21; edited 1 time in total (Reason for editing : Forgetful!!!!)
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Post  dudeofrude Sat Jun 06 2015, 22:28

Check that the chain isn't too tight just to be safe but it's probably just the new front sprocket.

Mine whines too and when I had it looked it I was told it's normal with an aftermarket sprocket as they are bare metal, apparently the yamaha ones have rubber coated sides that stop that sound??
Mine sort of sounds like a car reversing?

From what I read at the time, the only bad thing that it could be is the main drive shaft bearing so if your really worried maybe look into that?
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Post  0ldcat Sat Jun 06 2015, 22:33

Catnapper wrote:Whining noise

Cheers
You've not got the missus on the back 'ave you ? pmsl


Last edited by 0ldcat on Sat Jun 06 2015, 22:34; edited 1 time in total
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Post  dudeofrude Sat Jun 06 2015, 22:34

How to diagnose a problem by the noises your bike makes | MCN
http://www.motorcyclenews.com/new-rider/choosing-kit/2010/november/nov1510-how-to-diagnose-problem-from-engine-noise-/
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Post  Catnapper Sat Jun 06 2015, 22:37

Gonna check chain and alignment, main shaft bearing sounds beeping expensive, is it??
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Post  Catnapper Sat Jun 06 2015, 22:39

0ldcat wrote:
Catnapper wrote:Whining noise

Cheers
You've not got the missus on the back 'ave you ? pmsl

Nope, being on the bike is the only peace & quiet I get lol
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Post  dudeofrude Sat Jun 06 2015, 22:43

I've not a clue as I never looked to see what it was. I was just assuming it was the front sprocket carrier bearing in which case it's about a fiver??
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Post  Catnapper Sat Jun 06 2015, 22:45

dudeofrude wrote:Check that the chain isn't too tight just to be safe but it's probably just the new front sprocket.

Mine whines too and when I had it looked it I was told it's normal with an aftermarket sprocket as they are bare metal, apparently the yamaha ones have rubber coated sides that stop that sound??
Mine sort of sounds like a car reversing?

From what I read at the time, the only bad thing that it could be is the main drive shaft bearing so if your really worried maybe look into that?

Yep car reversing a good description - mines a JT front sprocket, yours???
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Post  dudeofrude Sat Jun 06 2015, 22:55

Haven't a clue I'm afraid. Judging by the rest of the consumables I've changed since having the bike the last owner bought the cheapest ebay trash he could (had 1 set of Chinese pads in the front that I found were £4 a set!!!) so I'd assume it's just some generic steel copy. It will be getting replaced soon along with the rest of the drive chain.
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Post  FatCat Sat Jun 06 2015, 23:03

dudeofrude wrote:(had 1 set of Chinese pads in the front that I found were £4 a set!!!)

That is just scary, it's the one area of the bike I wouldn't cut corners on no matter how skint I was. I've just bought 3 sets of EBC (two front and one rear) as my pads need replaced. They aren't cheap but I do rely on them to stop me from speeds as high as 69mph...
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Post  dudeofrude Sat Jun 06 2015, 23:07

Haha yeah 69 mph....It's some speed to try and stop from ;-) I've replaced all mine with ebc pads too
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Post  robertcains Sat Jun 06 2015, 23:11

Is this definitely a 'new' noise?
'Cat gearboxes whine like fook from new
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Post  Catnapper Sat Jun 06 2015, 23:29

That's what I mean by gremlins!!!
Sometimes these things just sound like they have just appeared.
Need to listen to another 'cat maybe
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Post  0ldcat Sat Jun 06 2015, 23:39

Catnapper wrote:That's what I mean by gremlins!!!
Just don't get it wet, or refuel it after midnight
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Post  Catnapper Sat Jun 06 2015, 23:39

0ldcat wrote:
Catnapper wrote:That's what I mean by gremlins!!!
Just don't get it wet, or refuel it after midnight

Good job is't not called Gizmo either
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Post  robertcains Sat Jun 06 2015, 23:45

Defo sounds normal from your explanation, it's very pronounced on the cat for some reason but doesn't cause any issues other than in your noggin
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Post  Catnapper Sat Jun 06 2015, 23:53

Maybe need to use it daily then I will become accustomed to it!!
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Post  Catnapper Sun Jun 07 2015, 16:35

Just had a quick check, rear wheel alignment seems ok BUT chain is slightly tight.
Does everyone stick to the 20-30mm as per Yamaha Manual??
Is it better to be closer to 30 than 20 or vica versa!!!!
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Post  ellie Sun Jun 07 2015, 20:16

I've noticed a whining noise in my helmet since RC installed blue tooth........ loony
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Post  Rosco Sun Jun 07 2015, 20:42

Gonna be non committal and say approx 1 inch from "fully pulled up to fully pushed down"

Pros to having it adjusted correctly and only cons to having it too loose OR too tight.

Interesting read about chains and adjustment HERE

Cheers
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Post  Wooster Sun Jun 07 2015, 20:52

I look for tightest bit then adjust it so it can't slap the swingarm. Question
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Post  Catnapper Sun Jun 07 2015, 22:45

Rosco wrote:Gonna be non committal and say approx 1 inch from "fully pulled up to fully pushed down"

Pros to having it adjusted correctly and only cons to having it too loose OR too tight.

Interesting read about chains and adjustment  HERE

Cheers
Rosco


Ok
Watched the video and yamaha say 20-30mm when the bike is stood up with no-one on it. 
Video shows him adjusting whilst on paddock stand so does anyone have a measurement whilst bike is on the stands. 
I am guessing more slack as the chain will tighten when lowered to the floor.
Or is it done by trial and error.
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Post  robertcains Sun Jun 07 2015, 23:31

If the rear stand is under the rear of the swingarm then it should mimick the wheel being on the floor so the same adjustment left thumb up
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Post  Catnapper Mon Jun 08 2015, 00:09

That's were I'm going wrong. My stand works from the swingarm 
Thumb
Will measure it before I adjust it and use that as a start point
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Post  Catnapper Sun Jun 14 2015, 16:53

Sorry about the wind noise but is this the 'cat whining gearbox????


https://www.youtube.com/watch?v=AD1SUkCfa5o
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