1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 70Get this manual

1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 70

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155 Model

6 to BTDC

If the spark advance is incorrect, remove the shoulder screw retaining the throttle cam to the powerheadRotate the throttle cam on the throttle lever link

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