1997+ Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-826148R2, Page 131Get this manual

1997+ Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-826148R2, Page 131

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Wiring DiagramGauge needle to point toward fast running engine Tachometer Starboard ngine Tachometer Port ngine
CLEANING GAUGES

Cle an gauge by washing with fresh water to remove sa