I just rebuilt the top end, and decided to change my clutch and while I had it tore down that I would change crank seals. I pulled the clutch, clutch boss, and the gear on the crank. I pulled the collar out of the seal and off the crank. There is a bracket that covers the bottom half of the seal that is held on by a big phillips head screw. Now I know this is very obvious how it comes out, but I would like to know what you people use to get this screw out (before I booger it all up). I tried a big screwdriver but it would't budge.