pics or info on a correct 78 750f3 motor spark advancer??
thanks
Most of the ones I've seen on the F2/3 are the -323- type. Of course, Honda being who they were then, I have one (wrecked, broken rod) F2 bottom end with a -300- advancer, too, but with springs that look like the -323- springs (stiffer, slower advance). I would not state a hard-and-fast "rule" saying there is a "correct" one for the F2/3 engines, just ones that advance a little slower than, say, the ones found on the pre-1974 engines. This slower advance is needed because of the later-opening cam, and in the case of the F2/3, the leaner idle jets, to prevent spark knock. If the advance comes in too early with the late-opening cams and the higher-compression (later) engines, detonation occurs in the 2000-4000 RPM range until the incoming air pushes past the late-opening intake valve a little more effectively.
