The caster block with 2 lines is the right front and the single line is the left front. I'm just trying to figure out what it is set at. 03 Ultramax Blaze Octane. I believe factory is 8 and 10 degrees when center. A guy told me to just use the front line on the right front, just checking to make sure that is good info. Seems to me that the right front is forward (less caster) one spot, since I look at both lines. If right is 10 degrees when centered, I am reading 8 degrees, but I've been wrong on every other thing on the kart other than the motor. If you look at just the front line, it would be at 12 degrees. ???????