Yamaha Outboard F15A F9.9C, FT9.9D F15 Service Manual, Page 146Get this manual

INSP ADJ
GENERAL
1 Spark plugs 1Remove: Spark plug 2Check: Spark plug type Spark plug type (NGK): DPR6EA-9

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