1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Repair Manual, P/N 520210, Page 46Get this manual
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Idle Timing
rn 4loosen the timer base detent screwrn 5 Move both the inside and outside detent tabs completely forward on the detent plate[[] 6 Be sure the timer base lever is against stop on th