Is it possible to aspirate most of the oil out of the front forks from the top. I'd be using a syringe.
2014 klx250s model.

 

The fork uses a cartridge design for the damping circuits. It's best to be able to either invert the tubes or disassemble the legs completely. I suppose that you might be able to get most of the oil out with a suitable 'needle' to get down into the depths and suck it out. It will help if you can cycle the damper rod to pump out any remains in the cartridge.

 

What are u trying to do?
You could get some of the oil out, but not all. Taking the forks off is not that big of a deal.

 

Just want to replace the oil for something more suitable for my weight (I'm bored). I'm not in a position to be able to do it right.
Just a large syringe and some long tubing. Didn't know if anybody has tried it before. I'll do it a few times over the next few days. Anyone who has been there, please chime in.

 

Fork oil weight should be selected for the valving in the forks, not the riders weight.
Using the wrong oil will not let the forks work properly.
You want to use different weight fork springs to adjust to the riders weight.

 

Didn't know that, thanks.
Would there be any benefit in replacing the fork oil or just leave it alone?

 

Fork oil will get dirty from use.
And it will get dirty from normal wear of the moving parts in the forks as well as minute amounts of dirt getting into the forks while riding.
Especially if you've been riding in muddy areas.
So it's good to change the fork oil on a regular schedule.
However you need to remove the forks on the KLX250 to effectively change the fork oil.