Scott-Atwater 7.5hp Fishing Scott vs Mercury 7.5hp (2-Stroke)

Scott-Atwater

7.5hp Fishing Scott

1956 · 7.5 HP · 2-Stroke
VS
Mercury

7.5hp (2-Stroke)

1990 · 7.5 HP · 2-Stroke
Spec Scott-Atwater 7.5hp Fishing Scott Mercury 7.5hp (2-Stroke)
Power & Performance
Horsepower 7.5 HP 7.5 HP
Displacement 164 cc 179 cc ←
Configuration 2 Cyl / Inline-2 2 Cyl / Inline
Weights & Dimensions
Dry Weight 26 kg (57 lbs) 24 kg (53 lbs) ←
Mechanical & Electrical
Gear Ratio 1.65 2.0
Alternator 0 W 60 W
Fuel Delivery Carbureted Carbureted
Maintenance
Spark Plug Champion J6C NGK B7HS
Engine Oil TC-W3 2-Stroke

Technical Comparison Analysis

Power & Displacement

Comparing the Scott-Atwater 7.5hp Fishing Scott and Mercury 7.5hp (2-Stroke) shows a displacement difference of 15cc. The Mercury features a larger 179cc block, which typically provides superior low-end torque and better hole-shot performance when pushing heavy loads or reaching planning speeds.

Weight & Rigging

In terms of transom weight, the Mercury is the lighter option at 24kg, offering a weight saving of 2kg over its competitor. This weight reduction is critical for smaller hulls or boats with limited transom capacity where every kilogram affects the center of gravity and drainage efficiency.

Electrical & Features

For boats equipped with modern electronics, sonar, and shallow-water anchors, the Mercury offers the best charging performance with a 60W alternator. Choosing the right power-to-weight profile between these two 2-stroke engines depends heavily on your specific boat's displacement and daily power requirements.