Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 66Get this manual

250275 Engine Wiring Diagram (40 Ampere Stator)
UPPER SWITCH

MERCURY

15 AMP USE OIL TANK

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