2000 screamin eagle-40k miles. Just changed the front fork oil for the first time(I know,every 20k). Very black- refilled with 9.7 ozs. as manual says, thru the top of fork very slowly with a squirt can-25 mins each side. Air pushed out a little bit when I tried to speed up the process so I added a little extra at the end to compensate. Now the front end bangs at every bump and I guess is bottoming out.Something is definitely not right.
Wondering if I should add more oil ,or drain it and do all over with a different oil (I used HD E),and refill with a different method for more accuracy.
Or,should I dismantle and rebuild with new ,Progressive, etc...,which I was planning on doing after the riding season,as well as the rear shocks.