KX125 Fork seals leaking?

[MXtras]

Well - yes. We can walk you through the entire procedure, but it's quite a bit to type up. It's not hard but doing it for the first time can be a bit of a challenge since you will not be certain of yourself.

I suggest searching this site and the net for some videos that actually show you the entire rebuilding procedure.

Otherwise - to simply change the oil you basically remove the top cap, separate it from the damper rod inside, dump the old oil out, pump the damper rod several times while upside down, hang the forks upside down overnight then refill them. A manual would help determine the correct quantity of oil for refilling. The oil level is usually measured (tape measure, ruler, calipers, fork oil syringe) from the top of the tube with the spring out and the tube collapsed. This level is usually around 105 - 150 MM (please check your manual)and the oil type is normally a 5wt suspension fluid like Amsoil Suspension Therapy or BelRay (please check your manual).

Come to think of it, a manual might be a good idea. It likely will have the correct procedure in it.

FWIW - if your forks are leaking because of a little air pressure, bleeding them might remove the leak for now, but the problem is still there. They should seal perfectly under quite a bit of pressure. Think about how much pressure is in them when you compress them. I strongly suggest removing the seals and give them a good inspection and cleaning. Check your sliders for small nicks, too. Do it right and the problem will be solved. If you don't have the time or money fix it right, how are you ever going to find the time or money to do them again? They will leak again and now you will be throwing new oil (and money) out the window.

Scott