Knocking noise ?

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Ben Coyle Racing
Posts: 27
Joined: Tue Aug 31, 2010 12:21 am
My Bike: ZXR 400L

Knocking noise ?

Post by Ben Coyle Racing »

I have a knocking noise inside the engine, when its cold its only a light noise

Its not clutch rattle either

when its really warm it seems so much louder, Im thinking big end but not sure

Any ideas ?
[b]Racing is life, anything before or after is just waiting[/b]
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CaNsA
zxr400 oc member
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Posts: 1742
Joined: Sat Nov 29, 2008 4:02 pm
My Bike: ZX6R F1
Location: Liverpool

Re: Knocking noise ?

Post by CaNsA »

Get the valve clearances checked.

Also, might be a cam shaft. Mine was doing the same, got it swapped out for a spare i had and the knocking stopped
Ben Coyle Racing
Posts: 27
Joined: Tue Aug 31, 2010 12:21 am
My Bike: ZXR 400L

Re: Knocking noise ?

Post by Ben Coyle Racing »

It was valve clearances!

My inlet was set at 0.40 and my exhaust was 0.30 !

Not good, I've sorted it now and the knocking has stopped! :)
[b]Racing is life, anything before or after is just waiting[/b]
Azazel
Posts: 39
Joined: Tue Feb 08, 2011 4:24 pm
My Bike: ZXR400 L1
Location: Nottingham

Re: Knocking noise ?

Post by Azazel »

I have a similar knocking/tapping sound which increases with revs - it's quite loud.
I have been told it could be the tappets :smt017

Anyone got a guide on how to adjust them at all?
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RedexRobB
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Joined: Fri Aug 30, 2002 7:37 pm
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Location: Ipswich, Suffolk

Re: Knocking noise ?

Post by RedexRobB »

Azazel wrote:I have a similar knocking/tapping sound which increases with revs - it's quite loud.
I have been told it could be the tappets :smt017

Anyone got a guide on how to adjust them at all?
Search box is your friend :)

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