My 79 Suzuki has drain screws on the bottom of the fork. The first time I changed the fork oil, I unscrewed the screw and pumped the front of the bike up and down. Fork oil sprayed on my Jeep and floor. When I did the other side, the head of the Phillips-head screw stripped. So I had to take the fork off. To get all the crud out of there, you have to take the forks off and clean everything. You have to have the right tools and manual to do this correctly.