1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 119Get this manual

1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 119

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If warning horn does not sound, ground the tan vacuum switch lead (from the engine wiring harness) to the powerhead with the key switch in "On" positionHorn shou Id sou ndIf the warning horn does not