Home › Forum › Ask A Member › 1974-76 9.9/15 ignition timing › Re: 1974-76 9.9/15 ignition timing
As the outboards rotation is clockwise, rubbing block ware means the points are less than the 0.020" setting and open later. Thus retarding the timing and moving the mark on the timing tool toward the left in the marks on the magneto base. . . 😉
