Honda PC50 Owner's Manual page 40

(g}# insert a screwdriver into the contact breaker plate slot © and
make the adjustment by moving either to the right or left.
(4) Upon completion of adjustment, retighten the contact breaker point
screw and check to make sure that the contact breaker point gap at
maximum opening is 0.012~0.016 in (0.3~0.4m m ).
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