531 Engines · 22 Brands · 1955–2024
Scott-Atwater

16hp Royal Scott

1956 · 16 HP · 2-Stroke
VS
Mariner

15hp International (Yamaha-built 684)

1990 · 15 HP · 2-Stroke
Feature Scott-Atwater 16hp Royal Scott Mariner 15hp International (Yamaha-built 684)
Power & Performance
Horsepower 16 HP 15 HP
Displacement 326 cc ← 246 cc
Configuration 2 Cyl / 2 Cyl / Inline
Weights & Dimensions
Dry Weight 27 kg (60 lbs) ← 34 kg (75 lbs)
Mechanical & Electrical
Gear Ratio
Alternator W W
Fuel Delivery Carbureted Carbureted
Maintenance
Spark Plug NGK B7HS
Engine Oil TC-W3 2-Stroke