Not to one up: http://www.google.com/search?hl=en&q...ator+parts+kit
Tons of parts available there.
Some simple solutions:
-The bolt o-rings are standard tank size
-The Cup Seal may be unscrewed from the stem
-There may be parts missing (so google search: F4 Illustrator Manual or look at more posts from me, I've put it up before)
-Use gold cup lube on everything
Good luck with your F4, if the parts don't fix it... let me know.