Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 129Get this manual

WIRING DIAGRAMS
Wiring Diagram Gauge needle to point toward slow running engine

GRY=GRAY WHT=WHITE BLK=BLACK PUR=PURPLE

- Tachometer Starboard EngineSynchronizer GaugeTachometer Port EngineSynchronizer Module

Wiring Diagram Gauge needle to point toward fast running engine

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives