Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 180Get this manual
EMISSIONS
CERTIFICATION LABEL: The certification label must be placed on each engine at the time of manufacture and must be replaced in the same location if damaged or removedShown below is typical certification label and is not representative of anyone modelLabel shown below is not to scale; (shown at twice the normal size)I'll
747 Inform on
PART 1137-856984 22
This engine conforms to U.SEPA regulations for marin SI ngines
Idle Speed (in gear): TI5 RPM Timing: Not Adjustable Standard Spark Plug: NGK DPR6EA9 Gap: .035" Valve Clearance (Cold) mm Intake: 015-0.25 Exhaust: 0.25-0.35
Refer to Owners Manual for required maintenanceFamily: WM9XM .747220
FEl: 32.20 GMiKWHR
30-40 HP 4-Stroke