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Old 27-02-15, 06:14 PM   #11
JM2
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Default Re: Bike is suddenly quieter than normal - Pointy 2014

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Originally Posted by Bibio View Post
could be something like a poly bag partially blocking the air box intake. or something on top of the filter.

unless someone has put a baffle or rammed something in your exhaust then it has to be the induction end.


^^^ I was thinking of this. Perhaps someone didn't appreciate it without one.
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Old 27-02-15, 07:24 PM   #12
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Default Re: Bike is suddenly quieter than normal - Pointy 2014

How old is the can? Just wondering if there might be some wadding in it that's come loose over time and is now bafffling the sound at the exhaust end. If the bike is running well but just quietly it sounds to me like the induction or exhaust is being muffled. And if performance is unaffected I'd guess it is more likely to be the latter.
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Old 27-02-15, 07:36 PM   #13
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Default Re: Bike is suddenly quieter than normal - Pointy 2014

Ok guys, had a light in the exhaust, i can see right down to the link pipe bend, the wadding is in perfect condition.

Had the airbox apart and the air filter is as clean as a whistle, apart from some black sponge thing covered in oil, i think thats the crank case overflow though?

The snorkel is also clear, i have no ideas. All spark caps are on properly etc
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Old 27-02-15, 07:44 PM   #14
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Default Re: Bike is suddenly quieter than normal - Pointy 2014

Fyi Bib,

I believe the plugs were changed at the last service around the 8k mark
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Old 27-02-15, 07:57 PM   #15
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Default Re: Bike is suddenly quieter than normal - Pointy 2014

Are you sure you are not getting hard of hearing? Or have you forgotten the ear plugs you put in?

Or finally, did you turn down the master volume switch (next to the idle adjuster)

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Old 27-02-15, 08:37 PM   #16
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Default Re: Bike is suddenly quieter than normal - Pointy 2014

only one other thing i can think of. when you put the end can on you had a slight leak and its now carbonated over sealing up the leak.
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Old 27-02-15, 10:31 PM   #17
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Default Bike is suddenly quieter than normal - Pointy 2014

Maybe the can used to be so loud it has caused deafness.

Or, it seems to coincide with mine becoming much louder. Maybe there is a natural balancing of exhausts - as mine gets louder someone else's has to get quieter. (Although I had thought mine got louder just as a length of steel tube appeared on the garage floor next to the bike)
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Old 27-02-15, 11:55 PM   #18
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Default Bike is suddenly quieter than normal - Pointy 2014

Any warranty left on it.


Sent down the wires from home
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Old 02-03-15, 10:31 AM   #19
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Default Re: Bike is suddenly quieter than normal - Pointy 2014

Bibio, I think that is the quite possibly the reason, it coincides with the fact I used to think my exhaust got louder when I was bombing round Wales in the Summer. E.G it would get really hot after 2 + hours and start to expand and blow slightly, I never looked into it though.

Gaz, Warranty on what? the bike yes but I fitted the can which was second hand off ebay
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Old 02-03-15, 11:36 AM   #20
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Default Re: Bike is suddenly quieter than normal - Pointy 2014

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Any warranty left on it.
Can you imagine trying to explain the fault to your local dealer?
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