XR600R, Just fill them to the top and then add the 15 psi max to the schrader valve that should do it!:eek: JUST KIDDEN YA! If you have to go to high with the oil you should look to the rest of your fork to find out what the problem is. make sure your springs are in the ballpark for your weight and abilities,don't forget to use the compression adjustment and as a last resort try different valving. last spring I put springs,gold valves and a fork brace on all at the same time and it made a HUGE difference in the forks but I didn't put one part on at a time so I don't know what did what but I can tell you it rides a lot better through the whoops but that lazy boy plush ride is almost gone.:think