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Old 03-24-2014, 10:25 AM   #16
Gustavo.Ramos
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Check the exhaust header graphite gaskets where they get together with the rear Y into the cans. I've seen those gaskets rusting and becoming nothing but a ring of wire that leaks everything.

more info here (similar setup)

Even the background noise of the distribution seems to be normal
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Old 03-24-2014, 10:48 AM   #17
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Quote:
Originally Posted by Gustavo.Ramos View Post
Check the exhaust header graphite gaskets where they get together with the rear Y into the cans. I've seen those gaskets rusting and becoming nothing but a ring of wire that leaks everything.

more info here (similar setup)

Even the background noise of the distribution seems to be normal
Agreed. As far as I can tell from the audio this sound reminds me of a time last year whilst travelling when I started to hear strange sounds that got progressively worse. Somewhere in the middle of Spain I stopped again to check it and tracked it to one of the graphite rings which was now blowing like Moby Dick breaking surface for air. The whole thing just dropped out in my hand. Managed to get a new one locally (but they only had one) and the other one went 1000km later.
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Old 03-25-2014, 07:21 AM   #18
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Originally Posted by zeropoint View Post
Agreed. As far as I can tell from the audio this sound reminds me of a time last year whilst travelling when I started to hear strange sounds that got progressively worse. Somewhere in the middle of Spain I stopped again to check it and tracked it to one of the graphite rings which was now blowing like Moby Dick breaking surface for air. The whole thing just dropped out in my hand. Managed to get a new one locally (but they only had one) and the other one went 1000km later.
Except the "clank" kills the bike, not him shutting it down. An exhaust leak wouldn't do that, would it?
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Old 03-26-2014, 05:15 AM   #19
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If it's not an exhaust leak, I would lean towards cam chains. At 37K miles, my front chain was stretched, and the front most plastic cam chain guide on the front cylinder was about 50% worn through. Cam chain noise was pretty loud. After a top end rebuild with new chains and guides, all noise was gone. Have you put in the newer cam chain tensioners that are longer? If you have chain stretch or guide wear, the longer tensioners might do the trick for awhile.
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Old 03-26-2014, 08:07 AM   #20
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Originally Posted by effensteve View Post
Except the "clank" kills the bike, not him shutting it down. An exhaust leak wouldn't do that, would it?
No, it would not.
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Old 03-26-2014, 08:16 AM   #21
Gustavo.Ramos
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Take the CCT bolts out and check for distance of CCT bolt to head, should be 6 ~ 11 mm

Can you make a vid of that clakning sound you hear when shutting the engine off?
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Old 03-26-2014, 08:28 AM   #22
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I'll try and catch it. The clank stops the bike.
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Old 03-26-2014, 02:46 PM   #23
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Really think its a hole in your exhaust manifold at front of bike I had the very same problem. Listen to mine http://www.youtube.com/watch?v=IbE18...e_gdata_player
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Old 03-26-2014, 04:44 PM   #24
Gustavo.Ramos
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Originally Posted by keith_irl View Post
Really think its a hole in your exhaust manifold at front of bike I had the very same problem. Listen to mine http://www.youtube.com/watch?v=IbE18...e_gdata_player
Agree but the OP mentions a clank that stops the engine
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Old 03-26-2014, 06:46 PM   #25
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dodgy sprag clutch ?
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Old 03-27-2014, 06:56 AM   #26
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I'd like to hear this too, but I'd bet it's the starter torque limiter clanking under a moment of slight back-spin when the engine is shut off. The engine is causing the clank, not the other way around.

Cam chain noise is not unusual, either. These are noisy, tough engines, folks. Unless there's oil coming of a brand new hole in the cases...ride the damn thing.
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Old 03-27-2014, 07:38 AM   #27
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Trying to catch the clank but it's quite hard to catch it. Like I say it's the clank that stops the engine. I have no control over it.
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Old 03-27-2014, 08:52 AM   #28
Gustavo.Ramos
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How are the plugs? I seem to remember you complained about poor fuel mileage.

If you have carbs messed up, an overly rich/lean mixture can shut the engine off without you doing anything, and then torque limiter can make some funny noises when the engine stops...
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Old 03-27-2014, 01:29 PM   #29
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I did have the clank and it really sounds like a starter clutch and it sounds like a really bad thing in the engine. I really dont know what it was it only happened me a handful of times thankfully I got the new pipes and it solved the problem. Maybe its got something to do with not enough compression on the exhaust? I'm really not sure but the new pipes sorted it for me.
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Old 03-28-2014, 08:24 AM   #30
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Oooo! Maybe. Cheers.
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