How to fill fork tubes and how much oil per leg
SOURCE: front fork oil capacity
Hi
You can download the whole workshop service manual that has this info and heaps more from here. Hope this helps Thanks for using Fixya.
regards
robotek
SOURCE: how much oil for 2003 yz 250f fork seals
3 Pints is average but you can adjust it to your riding style and weight. Stock oil height is around 130mm from top but you could set it around the 110 to 100 range for increased bottoming if you do a lot of big jumps ect.. 5w oil is the usual weight but fork oil goes up to 20w.
-John
SOURCE: What are the specs for fork oil in a 99 YZ 125
Use a good quality 5Wt suspension oil (or 7Wt if you want more dampening but this will make it a little more stiff through the small stuff). With the springs removed, fill the forks to the top, cycle the damper rod up and down until it has consistant and firm resistance, top the fluid off to the top, lift the outer tube up about 6" then set it back down, top off, then let it sit until you see no more bubbles. Stroke the damper rod again to ensure there is no air and then **** out fluid until your level is between 110 and 150MM in each tube. Make sure each tube is filled to the same level. One quart per fork is enough to do the job but you might need three quarts to have both filled prior to sucking the excess back out. I usually start with three bottles.
For a firmer feel, use more oil (110MM). For a softer feel, use less fluid (150MM). This is measured from the top of each tube to the level of the oil. Just use a piece of clear tubing and an irrigation syringe - you can get one from a local animal vet. Just mark the tubing with a sharpie at the level you desire.
My standard setting was 135MM from the top using 7Wt oil. I am 160lbs and a mid pack A class rider using essentially stock valving with stock springs.
Testimonial: "Thank you very much this is the first actual answer i have gotten on this question. I appreciate the help. LIVE TO RIDE "
35 views
Usually answered in minutes!
×