Quote:
Originally Posted by elevatorman
Hey MegaDan, I've searched all over for capacity of front fork oil and want
to see if that is still fresh on your mind.
I've already put 200 miles on my Hawk 250 but I'm going to pull front end apart to service forks this week. Also I'm going to install the Hawk cluster as the oem speedo is a joke. Thanks for your advice.
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I started with the specified amount of 210ml in each fork, for fork oil. A lot of people like to say "put back in what comes out" but you will find that each fork most likely has a different amount of oil in them. My left fork had almost twice as much as the right.
Make sure to pump the forks through their full range of motion a few times, and if you want to ensure you get as much out as possible, leave them upside down at a slight angle for a few minutes.
If you want to take the extra steps like I did, then I also flushed the forks with parts store brand ATF by filling them, cycling the forks right side up a few times, and then repeating the draining process. I did this for two reasons. First, to get as much of the factory oil out of the forks as possible. Two, my forks had a bunch of contaminants/debris in them.
Once I was satisfied that I got as much of the oil out as I could, I filled them with said 210ml, and then used a small tape measure to check the air gap. I had to add just a tiny bit more to one fork to get them even. If you are unfamiliar with this, you essentially add your oil, cycle the tube to ensure all of the air is out of the system, then with the tube all the way compressed, measure the distance between the top of the oil, and the top of the fork tube.
Once you have a figure, write it down somewhere for future use. I change my fork oil annually on my bikes, and without disassembling the forks you will never get all of the old oil out, so the levels will always be slightly off. Using the measuring method, you are ensuring that you get the same level of oil in the forks each time.