I have often pondered the question of why there is a gap at all?? I know
there is a reason for everything, so what damage would occur if the gap is
slightly less than the tolorances given in the book. I would guess that a
greater gap would cause the valves to open less... and also incur a more
violent rapping to the stem to rocker arm. Any input or responses welcome. I
always favored the tightest gap within the tolerances
Larry Coughlin
68 1600 U20
69 2000 Mikuni B cam
70 1600 parts car
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