Overhauling a suspension fork…

[Mx7733]

Hi there,
Allow me to introduce myself. My name is Mx, age 33, from the Netherlands.
I am currently unemployed, which is sad, but it gives me a lot of time to get reacquainted with my bike and riding.

Thanks to this excellent site my bike is getting into shape again and so am I
One thing is for sure, I couldn’t have done it without the help of Alex Ramon’s tutorials! Nevertheless I got stuck and hope that you can help me…

A friend of mine, who also lost his job, has an old Gary Fisher Marlin Genesis which is in bad shape.
And when I say bad, I mean that real bike enthusiast should not look beyond this point… It hurts! It really does…

But I want him to go out en hit the trails with me!
It’s summer and sitting at home is just depressing! And he would like to.. but the bike…

Now I’m pretty handy, as I may say so, so I offered him to fix’m up.
Being unemployed and not expecting to find work soon it has to be done cheap, really cheap.
Most problems I can fix, with the tutorials , but I am stuck with the fork.
It’s an SR Suntour Mg-71 Magnesium Which is rusted and needs to be adjusted. But I can’t find any manuals or tutorials about this fork. So perhaps anyone can tell me what type of fork it is and how to fix it, if possible. Having a bike shop do it is not an option, financial, and I rather not buy a cheap ridged fork… Here are some photo’s…
YOU were WARNED
[attachment=1580]

Some kind of pressure cap, I guess oil...
[attachment=1581]
I hope you can help or point me in the right direction!

Thanks in advance!

Cheers
-Mx