Clanking noise

[Shappaeye]

I aint a mechanic, as you are about to find out.


When my bike is idling, I can hear a clear clanking noise but as soon as it goes into gear before I pull off you can't hear it anymore.


Any ideas?

[mickvp]

Does it go away in neutral with the clutch pulled in? Would you call it a "rattle"? Sounds like it could be a bit of clutch rattle to me?

[darrsi]

May i suggest possibly filming it with your phone and letting us have a listen.


Clanking is another word i'm not too familiar with so can't make a genuine judgement.  :lol

[Shappaeye]

Thanks guys, will do, clanking does sound a little severe.


I'll be back...

[Shappaeye]

Ok, here it is and yes it does stop when the clutch is in as you may be able to hear.

[mickvp]

I can't get the video to play on my phone (iPhones are funny that way your video is not the issue) but just going by the fact you have said it goes away with the clutch pulled in I would be led to think it is just clutch rattle. Balancing the carbs and making sure the clutch biting point is set correctly can quieten it down if it's overly intrusive, but all the fazers do it to one degree or another and as I say as long as it's not too bad I wouldn't worry about it.

I should caveat this by saying it could be something else and someone who can actually hear it on the video may be able to offer a bit of more informed guidance

[Shappaeye]

There is no video, it's an audio recording  :eek


Ok, that sounds fair, thanks.

[fazersharp]

You need a pc not crapapple
windows media player I heard it but aint no mechanic either im afraid.
It sounds like a sherman tank 
Def can hear (or rather not) when the clutch ins pulled in 

[darrsi]

Fecking hell, i'd say that sounds more like a combine harvester although i can see why you used the word clanking!!!
Put it this way, if it were human i'd be calling it an ambulance.
That does not sound good at all.

[mickvp]

Oh aye, just listened to it there. That's not sounding great. A bit more than clutch rattle I would say

[misterjayb1]

If that clanking is ever followed by a loud bang then silence I would say its serious... Bizarre how it stops with revs..

[JoeRock]

THink I know the problem








Someone's put an old coal burning steam train in your bike!

[Bretty]

Walk around the bike.. where does the noise sound like it is coming from? Top end, bottom end, left or right?

It could just be one of your exhaust manifolds leaking, which can make an engine sound pretty rough. Or doe the noise come from the right hand side of the engine (clutch assembly)?

Get the bike on the centre stand and determine if the noise changes in both neutral and first and with the clutch in or out in both cases...

Ultimately, we could help you diagnose the fault, but if you're not a confident mechanic, you'll be getting a garage to fix it anyway. Take it to a garage and a friendly mechanical will give you a rough diagnosis within about 5 minutes.

[Shappaeye]

Thanks all, I will take it to the garage.

[darrsi]

It does sound like the revs are up, but out of curiosity what RPM is the needle sitting at on tickover?

[BBROWN1664]

That just sounds like it is idling far too low and struggling to keep running. Adjust the idle speed to around 1400rpm and see how that goes.

[Fazerider]

That just sounds like it is idling far too low and struggling to keep running. Adjust the idle speed to around 1400rpm and see how that goes.

Agreed.
It doesn't sound terminal to me, I'm pretty sure that's just a combination of the revs being too low (925 rpm) and the carbs need balancing.

[darrsi]

[quote author=BBROWN1664 link=topic=20678.msg238237#msg238237 date=1469784646]
That just sounds like it is idling far too low and struggling to keep running. Adjust the idle speed to around 1400rpm and see how that goes.

Agreed.
It doesn't sound terminal to me, I'm pretty sure that's just a combination of the revs being too low (925 rpm) and the carbs need balancing.
[/quote]

I'll go for 960rpm  :lol

[BBROWN1664]

probably closer to 840rpm

For the benefit of Shappaeye, you adjust the idle speed using the black thumb screw on the left hand side of the bike (by the carbs)

[Fazerider]

[quote author=Fazerider link=topic=20678.msg238238#msg238238 date=1469784938]
[quote author=BBROWN1664 link=topic=20678.msg238237#msg238237 date=1469784646]
That just sounds like it is idling far too low and struggling to keep running. Adjust the idle speed to around 1400rpm and see how that goes.

Agreed.
It doesn't sound terminal to me, I'm pretty sure that's just a combination of the revs being too low (925 rpm) and the carbs need balancing.
[/quote]
I'll go for 960rpm  :lol
[/quote]
OK, it depends where you measure as it's running so unevenly.