Stock springs? Kayaba says 5 weight. Aftermarket springs? I like the 7.5 recommended for the Wilbers. IIRC, fill to within 100 mm of the top of the tube. I don't have my manual handy. Maybe someone else can confirm.
thanks for the replies, i have done it other bikes so i know they must be vertical to measure the oil. i have to replace one fork seal do you have to separate the leg from the tube and if so i know you reach down into the tube and hold that bolt or what ever it is does anyone know wehat tool top use i heard that there is a trick to it with some square stock i just do not know what size it is.