Help me spend my money on my forks! - Wrist Twisters
 
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post #1 of 14 Old 05-18-2015, 08:35 AM Thread Starter
(Quintus) Pilus Prior
 
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Help me spend my money on my forks!

So I have a pretty badly blown fork seal. Used the seal mate on it last year and it made it a while, but now as soon as I clean it there's a pool around it again, so it's time for a replacement. I figure while I'm in there may as well put some new stuff in, so after reading through a bunch of threads it sounds like maxima racing 10wt is the go to for fluid, with a height of 125mm. I was going to ask if it would be worth it to do the springs while I'm in there, but I know the answer is going to be yes from everyone, so my question then is what springs should I go with? I don't want to stick a ton of money into it, and am riding on a stock rear, so I'd like to stick with just springs. I weigh 300 lbs, and racetech suggests 1.1kg springs... I'm guessing this is oversprung? Is racetech pretty much the go to for springs in the 919? Anything else I should think about while I'm in there? I have seals and dust covers already. I'm pretty sure the seals are a set of all-balls ones I picked up on here a while back that have been sitting in the garage, should I just order some OEM ones that are fresh so I don't waste my time?

Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
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post #2 of 14 Old 05-18-2015, 12:43 PM
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Yes, get springs! A very good investment. I would say no higher than 1.0 kg.

Also get upper and lower bushings, you might as well and they are cheap. Same with oem seals.

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post #3 of 14 Old 05-18-2015, 01:15 PM Thread Starter
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so I should be set with #8, 9, 16, and 21 right? obviously two of each...
Attached Images
File Type: jpg Forks.jpg (40.7 KB, 12 views)

Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
-2009 Suzuki GSX-R 750 Race Bike
-2007 Honda 919
-1995 Nighthawk 750 (Tboned)
-1983 KZ 440 (Sold)
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post #4 of 14 Old 05-18-2015, 01:27 PM
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Also 2 of number 13, I've seen those get corroded when the scrapers are shot. Also 23 and 24, 2 each - don't want to put it back together only to have the forks leak at those O-rings.

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post #5 of 14 Old 05-18-2015, 01:32 PM Thread Starter
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Quote:
Originally Posted by CB700S View Post
Also 2 of number 13, I've seen those get corroded when the scrapers are shot. Also 23 and 24, 2 each - don't want to put it back together only to have the forks leak at those O-rings.
I actually just added all of those things right after I posted... I saw on another site where the clip was corroded... and figured as cheap as those O-Rings are may as well have them around...

Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
-2009 Suzuki GSX-R 750 Race Bike
-2007 Honda 919
-1995 Nighthawk 750 (Tboned)
-1983 KZ 440 (Sold)
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post #6 of 14 Old 05-18-2015, 01:40 PM Thread Starter
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So any more suggestions on spring brands/ rate?... I'd like to be able to do this this weekend, so I probably need to be ordering it today or tomorrow.

Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
-2009 Suzuki GSX-R 750 Race Bike
-2007 Honda 919
-1995 Nighthawk 750 (Tboned)
-1983 KZ 440 (Sold)
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post #7 of 14 Old 05-18-2015, 02:04 PM
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Quote:
Originally Posted by badmoon692008 View Post
So any more suggestions on spring brands/ rate?... I'd like to be able to do this this weekend, so I probably need to be ordering it today or tomorrow.
Give [email protected] Kyle a call! Obviously he has his preferred brand (as in the one he sells,) but he can drop the knowledge you need as far as the rate goes.

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post #8 of 14 Old 05-18-2015, 04:31 PM
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1
check out old thread Race Tech fork springs for insights.
2
contact LDH at Dan Kyle who will put you straight with the right stuff.

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post #9 of 14 Old 05-18-2015, 04:46 PM
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Quote:
Originally Posted by mcromo44 View Post
1 check out old thread Race Tech fork springs for insights. 2 contact LDH at Dan Kyle who will put you straight with the right stuff.
+1 to either option. I went a step further and sent my forks to Dan Kyle and had them rebuilt with ohlins internals. Not a option for everyone but my bike see a lot of down time in the winter, lol.

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post #10 of 14 Old 05-18-2015, 05:27 PM
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If you're doing just spring then go with Race Tech. If you want the complete internals rebuilt then the price is up to you either go with Gold( Dan Kyle- Ohlins $$$) or go with the Race Tech internals. If race tech says 1.1 then go for that. They take in account for you gear too and they are pretty well respected in the suspension world. I would trust their opinion. But if you plan on losing some weight maybe lighten it up a bit, 1.0 or .95.

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post #11 of 14 Old 05-19-2015, 07:39 AM Thread Starter
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Ended up going with the 1.0kg race tech springs... Got everything else ordered and on the way... should be a fun weekend... Of course I have a couple hundred mile ride planned sunday into monday the week after the seal blows... here's hoping everything goes together alright/I don't mess anything up!

Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
-2009 Suzuki GSX-R 750 Race Bike
-2007 Honda 919
-1995 Nighthawk 750 (Tboned)
-1983 KZ 440 (Sold)
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post #12 of 14 Old 05-28-2015, 08:45 PM Thread Starter
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Well, I tried to get away with not cutting the spacer down, thinking the little extra preload (18-20mm instead of the 10mm called for) would make up the difference between the 1.1kg spring and the 1.0... Long story short, that's a bad idea, putting it back together was a bitch, and now even when I try to compress the suspension as far as possible I can even get 30mm of compression, so setting sag might be difficult...lol
So now I get to tear it all apart so I can take the spacer in to work tomorrow to cut it down! Yay!

Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
-2009 Suzuki GSX-R 750 Race Bike
-2007 Honda 919
-1995 Nighthawk 750 (Tboned)
-1983 KZ 440 (Sold)
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post #13 of 14 Old 05-29-2015, 03:27 PM
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Is it a metal spacer? I thought they provide you with a PVC spacer so one could cut it with a hack saw.

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post #14 of 14 Old 05-29-2015, 05:23 PM Thread Starter
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They sent along a metal tube similar to the one in the fork to cut, I threw it on the lathe at work and it turned out nice... That being said.

Even with the correct spacer size the forks are waaaay too stiff. Not sure if I did something wrong or if switching to 10wt fluid and raising the height makes a big difference. I switched back to the old springs now and have them adjusted all the way down and it still seems decently stiff, but a lot better than with the new springs...

Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
-2009 Suzuki GSX-R 750 Race Bike
-2007 Honda 919
-1995 Nighthawk 750 (Tboned)
-1983 KZ 440 (Sold)
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