Can anybody out there tell me how to split the fork legs down on a 1990 dt50mx, i need to change the seals .?

Question

I have no longer got a manual for this model and a friends bike needs new seals fitting for the MOT .

Unlike the forks i have done before these ones do not have a allen bolt @ the bottom of the fork leg and the spring cannot be withdrawn fron the top of the slider when the cap has been removed.

Answer 1

All the parts diagrams I've looked at show an allen bolt at the bottom.
But I was looking at the enduro model, can't find the MX
It might be like the PW50 - Remove the circlip and pull the tube out, taking the seal with it.
But the PW50 doesn't have oil in the forks or fork seals, just grease.
After removing the circlip, try to remove the fork seal.
Be extremely cautious not to touch, or damage the fork tube.
Wrap the rube with duck tape.
Try to remove the seal with a slide hammer.
I'm not saying any of this is the way to do it.
I'm just giving suggestions.
Call a Yamaha dealer to see if they have a microfiche of your dt50mx. Then go to the shop and look at it (Tell them you want to order something for the forks, but don't know what it's called. Let me look at it and I'll show you LOL).
Good luck

Answer 2

fork out, Remove boot. remove bottom allen screw, remove top cap, remove dust seal and seal circlip, drain out oil and remove spring, put fork outer tube in vice (gently and on a lug, not the tube itself as you will sqash it) pull the fork inner tube in and out smartly, so as the bush in the fork pulls out the old seal. Rebuild using new seals and fork bushes.

Answer 3

lift fork dust seal up and release forkby undoing circlip then pull apart. maybe tight.