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Old 28-May-2003, 13:06
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Rattler Rattler is offline
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Chain tension - what should this be??

Still trying to get to grips with the neutral issue and want to check the chain tension.

N E 1 know what the chain tension (vertical movement) should be on a 996 SPS at the tightest point?

Thanks
Tim
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Old 28-May-2003, 13:38
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DSC Member Guido Guido is offline
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Tim,

As far as I know, all 748/996 models are the same in that you measure the tension at the point of the chain that runs below the swingarm just in front of the curved lower edge of the swingarm. If I've understood the decal on my bike correctly, the tension should be 25mm total movement in the chain in an up and down movement.

Now the argument is, do you take this measurement when the bike's on it's sidestand unloaded or with the rider sat on it?

Hope this helps mate
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Old 28-May-2003, 13:57
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I' ve always done mine with me sat on it,'cos it doesn't half tighten when loaded.Wether this is the official way,i don't know!
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Old 28-May-2003, 14:57
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The Haynes manual says on the sidestand....

and measure at the tightest point.

I managed to find that bit, but couldn't find what the measurement should be.

I know that I'd seen a mesure somewhere, but couldn;t find it again, it probably was on the swingarm then - DOH!!!

Thanks for your help..

Tim
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Old 28-May-2003, 15:32
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Quote:
Originally posted by Jasper
I' ve always done mine with me sat on it,'cos it doesn't half tighten when loaded.Wether this is the official way,i don't know!

Don't think mine moves that much
Wonder why ?????
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Old 28-May-2003, 18:57
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'Cos you didn't have half the stuff that me and Old Yella had strapped to our bikes at the NW200!!
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Old 28-May-2003, 21:57
Haley Haley is offline
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Rattler, the chain tension (25mm) is on page 1.2 in the haynes manual.

Its under Drive chain freeplay.

Hope this helps??
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Old 28-May-2003, 22:12
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I set mine so that I can lift it so it just touches the under side of the swingarm, where the "measurement" is taken, without having to put any real pressure under it.
I set mine on the rear paddock stand and go tight and then back it off to get the tension.
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Old 28-May-2003, 23:08
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Is the idea of 25mm slack not so that if the rear suspension hit's full compression there is enough slack so the chain will not get stretched !
Correct me if i am wrong !

I seem to remember an article where they compresssed the rear suspension fully then adj the chain so it was just neat ,that way they knew what the correct amount of slack was when uncompressed !
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Old 28-May-2003, 23:48
Felix Felix is offline
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Have you tried to compress it fully? Easier to stick to 25 mm, IMHO.
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