Serviced my forks, now it doesnt do any suspension at all

Hello folks, I recently service the forks of my 1982 XJ650 Maxim J, put 9.40 oz of 10w fork oil in each leg, now my forks has no suspension at all. I do not know if there is any air in my forks in or if there is any bleed valve to release the air inside of it so I decided to get a second opinion in this forum. Thanks in advance!

 

What do you mean there is "no suspension at all"? When you put weight on the forks do they collapse to bottomed out? Or do they not move at all when you put the weight on them? You say you "serviced" the forks, did you take them off the bike and take them apart, change fork seals or use the drain screws and drain the oil and replace it?

 

Yes, i took it all apart. It does not collapse at all, absolutely no movement. Another issue is that my bike doesnt have an air assist forks even though its a 1982 yics maxim. I will have to take it all apart again and see what went wrong during my assembly.

 

I would take it apart again and recheck the order of assembly..... the damping rod, oil lock piece and the inner tube. With that together in the right order, the inner tube should slide up and down freely as any fork should, and top out against the rebound spring on the damping rod...... I suspect you need to install the inner tube first, then the oil lock piece, then the damping rod..

Do you have a service manual (I don't), it should give you the oil volume as a guideline, but then one checks the oil level with fork tube extended, no springs).... if the service manual specifies that. If it doesn't then use oil volume, which assumes the fork is completely dry of oil.

 

Update: I havent taken it apart, but I did a test by holding the forks down with both of my hands too see if I can push it down, luckily theres a movement now, Im suspecting that i put too much oil in it, my 1982 doesnt need air as it didnt have air valves on the top of the forks.

Base by haynes manual

1. Xj650 G,H and LH needs 9.24 oz of 10w oil
2. Xj650 J needs 9.40 oz 10w oil
3. Xj650 RJ or the Xj650(UK) needs 7.18/8.31 oz

I either have to change my oil level to the 1st or 3rd option.

 

Update: Seems like I found the culprit, I made a mistake during the assembly as I installed the fork spring on the wrong orientation, the spring with the tightly wound coils was at the bottom instead of it being on the top.