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Tinny tapping sound when decelerating?

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EazyDuz
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Joined: 12 Apr 2011
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PostPosted: 16:33 - 30 Oct 2011    Post subject: Tinny tapping sound when decelerating? Reply with quote
I dont think it sounded like this before but not sure if its normal or not.
GZ125, when i slow down from about 30mph or more, i can hear a tinny tapping sound. The sound stops if i pull the clutch in. It only does it when slowing down never when im accelerating.
Tappets are correct, chain correctly tightened. Is this normal?
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andy_uk
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Joined: 13 Aug 2011
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PostPosted: 17:36 - 30 Oct 2011    Post subject: Reply with quote
If the bike's ticking over can you still hear it?
As it disappears when you pull the clutch in I would guess that it's more engine related than gearbox etc.
You can narrow it down by putting a long screwdriver to your ear (blunt end!) and putting the other end on various (non moving) bits of the engine.
Or you could get one of these which are a little easier to use Smile
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EazyDuz
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Joined: 12 Apr 2011
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PostPosted: 17:54 - 30 Oct 2011    Post subject: Reply with quote
andy_uk wrote:
If the bike's ticking over can you still hear it?
As it disappears when you pull the clutch in I would guess that it's more engine related than gearbox etc.
You can narrow it down by putting a long screwdriver to your ear (blunt end!) and putting the other end on various (non moving) bits of the engine.
Or you could get one of these which are a little easier to use Smile


No it doesnt happen when just ticking over, just at a certain speed as it slows down.
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spyuggy
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Joined: 29 Aug 2011
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PostPosted: 22:54 - 31 Oct 2011    Post subject: Reply with quote
I would check your clutch basket and see if the dogs are slack.
Also look at the Centre bolt, to see if it is torqued up properly
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EazyDuz
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PostPosted: 23:46 - 31 Oct 2011    Post subject: Reply with quote
I have no idea where to find those?
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Bezzer
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Joined: 14 Apr 2005
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PostPosted: 14:32 - 01 Nov 2011    Post subject: Reply with quote
spyuggy wrote:
I would check your clutch basket and see if the dogs are slack.
Also look at the Centre bolt, to see if it is torqued up properly

Never heard a clutch make the sound the OP is describing, you usually get a "rumble" from the clutch such as on a lot of Hondas and it goes when you pull the clutch in and never causes any other problem, on others it's always there.
Check the exhaust header/collar to make sure it isn't loose that can tap on and off load but other than that it's as suggested earlier go over it with a stethoscope/screwdriver to the ear to try and narrow it down more, rev it and see if you can hear something.
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EazyDuz
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PostPosted: 15:01 - 01 Nov 2011    Post subject: Reply with quote
It sounds absolutely fine when i rev it in neutral. Maybe it always has made that noise and im just being paranoid im not sure.
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