Stock Front Fork Differences? - SV1000 Portal
 
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post #1 of 10 (permalink) Old 6th July 2019, 10:08 AM Thread Starter
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Stock Front Fork Differences?

Hello I have a 2003 Sv1000N that needs the front forks replaced(rusty). Found a good deal on some off a 2007 Sv1000S. Will these bolt right up or were there significant changes between 2003 N and 2007 S?
Thanks
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post #2 of 10 (permalink) Old 8th July 2019, 04:31 AM
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The fork legs should bolt straight in as far as i know....just have valving changes from memory.....

There will be more feedback coming on that one though.... guys??

also, check this link
https://www.sv-portal.com/forums/38-...00s-forks.html

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post #3 of 10 (permalink) Old 8th July 2019, 05:29 PM
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Naked forks are 5mm shorter; just install the S forks 5mm higher than the current ones.
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post #4 of 10 (permalink) Old 9th July 2019, 04:13 AM
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Yeah, now i remember that.... doh!!

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post #5 of 10 (permalink) Old 11th July 2019, 04:52 AM Thread Starter
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Thanks for the info. I looked all over and never saw the 5mm difference just that they were different. Ended up grabbing this set https://www.ebay.com/itm/202720553786 prob gunna have to get the seals and oil done before they go on.
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post #6 of 10 (permalink) Old 11th July 2019, 06:58 AM
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Easy to check really, measure your forks from the centre of the axle hole to the top of the chrome tube when they are out of the bike, and do the same with your new set. But, remember to have measured the fork protrusion above the top triple on yours first. Then IF the new ones are longer, then add that to your measurement, or, if they are shorter, take it away.

Another way for the total length, and we assume the lower sliders are all the same, is to measure the visible length of the chrome tubes, again, not installed.

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post #7 of 10 (permalink) Old 11th July 2019, 03:24 PM
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IIRC, the volume of fork oil is different.

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post #8 of 10 (permalink) Old 12th July 2019, 01:22 AM
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Yeah.... i thought the S models had a smaller air gap....but looking in an 2003 Naked manual it is reveas the opposite

My 03 S model was 162mm oil height.....(494mls of oil from bone dry) and the N model (2003 model) 147mm oil height (508mls of oil from bone dry)

This may also be accentuated because of fork tube length differences i suppose....

The 2007 S model forks MIGHT be different oil height, as the valving/cartridge was altered...

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post #9 of 10 (permalink) Old 16th July 2019, 06:39 PM
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Quote:
Originally Posted by Missing Link View Post
Yeah.... i thought the S models had a smaller air gap....but looking in an 2003 Naked manual it is reveas the opposite

My 03 S model was 162mm oil height.....(494mls of oil from bone dry) and the N model (2003 model) 147mm oil height (508mls of oil from bone dry)

This may also be accentuated because of fork tube length differences i suppose....

The 2007 S model forks MIGHT be different oil height, as the valving/cartridge was altered...


The stock oil levels only work with stock springs.

With aftermarket springs you need a very different oil level.

-ms


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post #10 of 10 (permalink) Old 17th July 2019, 03:39 AM
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Quote:
Originally Posted by schmidt314 View Post
The stock oil levels only work with stock springs.

With aftermarket springs you need a very different oil level.

-ms
Yeah, for sure.....

I was running 127mm air gap on my stock forks with Racetech springs..

The Racetech displaced way less oil when installed.... less coils and slightly thinner wire.
I did drop the OEM springs into the fluid at 127mm and the level jumped
a long way compared to the Racetech

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