Re: how to fill the front suspension on a ktm exc 2001
If you get the sevice manual or contact a dealer to get the correct oil amount for your bike, they need to know the model and year, you have to have the forks off the bike. take the fork caps off, take the springs out compress the upper fork tube all the way and add the specified oil. if they also give you the measured amount from the top that's the best way to get both fork oil levels exact. there is a special tool that you set the oil level in millimeters and it sucks out the oil to the right level, but before you do that step after adding the oil always pull and push on the cartage rod several times to remove air from the cartage tube. you will hear the air coming out and you will feel the changes in the cartage rod as the cartage tube fills up with oil and the air is removed.
something i'm confussed on though is if you replaced a seal you would have had to brake down the fork to replace it. you would have poored the oil into a container, cleaned all the internal parts,and used a fork seal driver to install the new seal. part of your question asks where do i put the oil in? thats in the open end of the fork after you have taken off the fork cap. It sounds to me like you only replaced the dust seal on one fork. that is not going to fix your leaking fork. you need to replace the oil seal thats pressed inside of the top fork tube.
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Stock fork seals will work but if I were you, I woudl take it to someone who has the correct tools take your fork seals out without gouging the fork leg. If your seals are leaking then chances are you're also low in fluid. Your fluid level is what decides how hard or soft your front end is (In addition to fork spring rate).
I recommend sending them out, or get a factory manual. You need fork seal drivers (The correct size) and a solid mechanical background with some good tools. They ar not a simple deal. If you feel comfortable in trying it, get a good manual, and it will walk you through it.
front axle installation: looking at the front of the bike:
slide the wheel into position and insert the axle from the left. with axle now through the right hand fork, install nut and tighten the left fork pinch bolts to secure the axle for tightening the nut. tighten the nut to 29.5 ftlbs. and loosen the left pinch bolts. now tighten the right pinch bolts and compress the front suspension while the left (from front) is still loose. now allow suspension to rest naturally and tighten all 4 pinch bolts to 11 ftlbs. your done.......the axle is tighten against the rotor side and the other fork is then tighten in it's natural position so as not to cause premature seal and bushing failure and increasing stiction.
hi mate once the oil is drained you refill with 5w this is the standard oil and when you add the oil pump the dampers up and down until it stops squiling then you can fill it till it is 90mm/9cm from the top of the forks use a ruler and when it hit 9cm pump the forks then measure again if gotten lower top back up then screw the caps back on
Hi there over the ditch. EBAY rocks for most bits you lookin for. Motard wheels check out your KTM dealers oz wide as they were giving away Motard wheels with new 530 last year an some might still have stock. I am just in process of fitting Motard Kit I got from local dealer you will need to get a Digital speedo from a later model EXC as the 2000 520 has an analog an won't fit with Motard Wheels.