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Old 03-10-13, 10:12 PM   #21
The Idle Biker
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Default Re: Chain jumping

Can someone confirm if Winder has spent money without needing to?

(Yes is the preferred answer.)
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Old 03-10-13, 10:20 PM   #22
Winder
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Default Re: Chain jumping

That has never happened Laurie
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Old 04-10-13, 08:35 AM   #23
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Default Chain jumping

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Originally Posted by The Idle Biker View Post
Can someone confirm if Winder has spent money without needing to?
(Yes is the preferred answer.)
If the exact same phenomenon is exhibited with this and the last chain, then yes. Of course the old chain may have been worn out, but, if worn relatively evenly, (note; relatively - chains and sprockets rarely wear perfectly consistently), then even at the end of its life this 'problem' will not have been caused by the chain per se.
An engine never turns perfectly evenly, the firing pulses are a finite distance apart, thus the engine slightly speeds up with each pulse and similarly slows down between them, the slower the engine speed the greater the interval between pulses, and obviously the reverse is also true, thus the force applied to the chain as the engine turns is not consistent and this is most noticeable at tickover.
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If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing.

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Old 04-10-13, 09:31 AM   #24
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Default Re: Chain jumping

. . . and is FAR more noticeable with a V-twin ( or a single )
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Old 04-10-13, 10:26 AM   #25
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Default Re: Chain jumping

20k miles and a front sprocket with shark fin shaped teeth I think it was due a change
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Old 04-10-13, 10:31 AM   #26
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Default Chain jumping

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Originally Posted by punyXpress View Post
. . . and is FAR more noticeable with a V-twin ( or a single )
Precisely so. The fewer the cylinders the further apart the pulses at any given engine speed. That's why, mostly, big motors with lots of cylinders - 8 or more - are so silky smooth, the pulses are closer together thus the cyclic acceleration and deceleration of the engine is less apparent.
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If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing.

"a deathless anthem of nuclear-strength romantic angst"

Last edited by Sid Squid; 04-10-13 at 10:34 AM. Reason: Messed up the quote.
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Old 04-10-13, 07:53 PM   #27
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Default Re: Chain jumping

2800 cubic inch (roughly 45,900cc) 18 cylinder twin row radials are so smooth they can blow one cylinder right off the crankcase and nobody will notice until they see it missing.
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