Yamaha 2.8l 150hp, 175hp, 200hp spark plug install 

It's so easy to change your own sparkplugs on these Yamaha outboards. 4 pack of NGK LFR6A-11 plugs: amzn.to/4e4ZVp7
Anti Seize lubricant: amzn.to/3x2tZB5
Spark plug feeler guage: amzn.to/4efp3JV
Craftsman socket with rubber insert: amzn.to/3RdsNl6