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October 11th, 2006, 04:40 PM   #1
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Front Fork WP 5060 Extreme Husaberg 97-99

What is the correct oil level height (or quantity) for the Front Fork WP 5060 Extreme Husaberg 97-99 ?

Can the oil seals be removed without taking the forks apart?

Thanks, Mike
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October 12th, 2006, 06:51 AM   #2
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I do not know the oil level, but you will have to completly disassemble the fork to change the seal.
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October 25th, 2006, 02:06 PM   #3
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Let's try this again.
Anybody know the oil quantity or the level?
I looked in the manual with no luck.
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October 25th, 2006, 03:20 PM   #4
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130mm is good. 15wt in the reb leg if you want the adjuster to work.
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October 25th, 2006, 04:30 PM   #5
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I ran mine at 125-130mm/ 10wt. FWIW any conventional fork can have the seal removed without disassembling the fork. Simply remove the cap, fork spring, and clip holding the seal in. Next, fill the fork to the top with cheap ATF when the fork is totally extended. Reinstall the cap and put the fork in a press. When the tube enters the slider with no air something has to give, and the seal pops out. Dump out the ATF brew and install a new seal and oil. With cartridge forks, people usually want to look at the valves so this isn't done much anymore, but this method used to be in Yamaha service manuals before the invention of cartridge forks.
dan

Oh, and this works pretty good when you blow a seal while racing out of state with no tools. Put the fork against your buddies new truck bumper and the other end against a tree and slowly back up. Just remember to have the seal end away from the truck so the tree gets an oil bath not the truck. Words of experience.
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October 25th, 2006, 04:37 PM   #6
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When the seal pops out I suppose you get showered with ATF? This may sound dumb....but, It is the same amount of oil in each leg, Right? KTMLEW has me Questioning myself.
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October 25th, 2006, 04:54 PM   #7
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Here is a set-up from a guy that uses these forks on all his bikes. Buys a new bike and swaps forks!

Moto520's WP Extreme Settings


Ive had allot of experiance with the wp 50 mm forks. I also weigh in the 200lbs range .
I race vet A mx at RED BUD and some pretty awsome tracks around here, also GP's and scrambles. Over the years I have found that they work best, for me anyway, with the following. First when installing seals use a bullet tool or cut the corner off a plastic grocery bag and slip it over the tube to act like a bullet tool. gotta save fron the sharp edge. Remove the seal springs and unscrew where they connect. Cut 5-8 mm off the female end and reconnect. Install them . Do the same on the wipers . This greatly reduces the weeping.
If they do leak use three wrapsmasking tape around the tube with an outward slash cut, work in into the seals rotating so the dirt rolls up along the slashed edge effectively removing the dirt that makes them leak.

.44 spring at 10 mm preload, 130 mm oil level with 10 weight in the compresiion side and 15 wt in the rebound.

I use a Torco oil as its very ressistant to foaming compared to , Maxima , spectro, silkoleen, defintely stay away from Belray. The 50's have such a large bottom out cone they can be plush initially and still offer up a great bottom out action. Flex will be better than the biggest inverted fork using a Summers fork brace. I can back my comp and rebound off and go crazy in the woods or turn um in and mx as if two different forks were on the bike.

The range of adjustability is awsome with these just by spring rates and oils weights and volume. No inverted fork will match a conventional forks action for overall performance.The 4 stroke ktm with these forks on them is just unbelievable. Straddle your 48 or 43 mm forks clamping with your legs and holding the bars with the front brake lever compressed . Move the fork lft to right and see how much they move . Try that on a 50 mm fork with and without a Brace. The brace makes the difference and now the fork is clamped in four places. The little bit of flex the fork may have at the bottom t clamp when riding isnt a noticable amount and may be of some benefit. The 50 mm forks usually dont need much in the way of stack valving for most riders.
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October 25th, 2006, 09:01 PM   #8
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Sounds like I should have been using 15 weight on the rebound side. And no you don't get even a slight bath when using a press that moves slow. The truck didn't move slow enough though.
dan
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October 26th, 2006, 09:24 AM   #9
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So you've seen my truck. The last trip out those forks sprayed oil all over the place. Thanks guys!
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October 26th, 2006, 09:51 AM   #10
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So you've seen my truck. The last trip out those forks sprayed oil all over the place. Thanks guys!
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