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-   -   Quick and dirty fork oil change. (http://forums.sv650.org/showthread.php?t=202174)

aesmith 05-08-13 08:10 AM

Quick and dirty fork oil change.
 
Hi,

I've been putting this off until I could face all the dismantling, but yesterday decided to do it without. I suspended the bike with a strap under the top yoke, took the caps out from the top of the forks, then lowered it right down so the forks were fully compressed. With the springs, spacers etc taken out I was able to get the tube on my oil extractor (aka sooker) right to the bottom to suck out the existing oil.

It was a surprise to find progressive springs, I thought the bike was standard but now I have no real idea what's actually fitted. I also noticed that the ends of the spacers aren't quite at 90 degrees, making me wonder if they've been cut down too.

I went for 10W oil, guessing that the progressive springs would need something slightly thicker than recommended for standard, and so far it feels about right.

Tony S

rictus01 05-08-13 08:33 AM

Re: Quick and dirty fork oil change
 
unfortunately you will have left a fair amount of the sludge in there, this is a combination of the oil break down as well as worn metal particals, better than not doing it, but not the best way.

aesmith 05-08-13 08:48 AM

Re: Quick and dirty fork oil change
 
Quote:

Originally Posted by rictus01 (Post 2893044)
.. better than not doing it, but not the best way.

That was my reasoning. For what it's worth there didn't seem to be any contamination sucked out with the oil from the very bottom, of course this could be because it's too solid to be sucked out, or because my tube didn't get right down there.

dkid 05-08-13 08:59 AM

Quick and dirty fork oil change
 
I could be wrong but I think the standard springs have a different rate at one end so may appear progressive. Are you certain yours are aftermarket?

aesmith 05-08-13 09:19 AM

Re: Quick and dirty fork oil change
 
Quote:

Originally Posted by dkid (Post 2893053)
I could be wrong but I think the standard springs have a different rate at one end so may appear progressive. Are you certain yours are aftermarket?

Not certain, this is what the two different ends look like ..

http://i42.photobucket.com/albums/e3...ps0e7238eb.jpg

dkid 05-08-13 09:23 AM

Quick and dirty fork oil change
 
I have a feeling mine were the same when I removed them from my sv before the ktech linears went in. I don't have a pic but someone else may confirm these are stock springs?

yorkie_chris 05-08-13 01:37 PM

Re: Quick and dirty fork oil change
 
could be stock, quite possibly. pointy ones are progressive

aesmith 05-08-13 02:45 PM

Re: Quick and dirty fork oil change
 
Cheers. Yes, faired Pointy. Looking at the manual more closely, I thought it was saying that the standard spring has a smaller diameter at one end, which mine doesn't. Now I see that doesn't apply to faired bikes which have a progressive wind instead.

http://i42.photobucket.com/albums/e3...ps60668b10.jpg

I would have expected the tighter coils to be at the top. Is there any special reason Suzuki put them the other way round?


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