OK, very simply, the pullstart should pull so the crank will go clockwise when viewed from the BACK of the engine. The one way should be set in the starter shaft so that when it's turned clockwise, it bites and turns the shaft. If the one way is such that no matter which way you put it on there's no bite it's either shot or needs cleaning. To clean it, soak the one way in denatured alcohol or nitro wash for a little while. Then dry it off and shake all the alcohol out of it. Then soak it with light oil like 3-in1 oil. Then try it again. If it still doesn't work, the bearing is toast. BTW, you said you replaced the pull starter. Is the one way new too?
