Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 75Get this manual

IGNITION
IGNITION COIL (PRIMARY)

METER SCALE READING (11) 0.18-0.24

METER TEST LEADS RED BLKlWHT BLACK BLACK

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