Evinrude 25hp (2-Stroke) vs Mercury 25hp EFI (3-Cyl)

Evinrude

25hp (2-Stroke)

1995 · 25 HP · 2-Stroke
VS
Mercury

25hp EFI (3-Cyl)

2005 · 25 HP · 4-Stroke
Spec Evinrude 25hp (2-Stroke) Mercury 25hp EFI (3-Cyl)
Power & Performance
Horsepower 25 HP 25 HP
Displacement 521 cc 526 cc ←
Configuration 2 Cyl / Inline 3 Cyl / Inline
Weights & Dimensions
Dry Weight 48 kg (106 lbs) ← 78 kg (172 lbs)
Mechanical & Electrical
Gear Ratio 1.75:1 1.92:1
Alternator 60 W 210 W ←
Fuel Delivery Carbureted EFI
Maintenance
Spark Plug Champion QL77JC4 NGK DCPR6E
Engine Oil TC-W3 2-Stroke 10W-30 FC-W

Technical Comparison Analysis

Power & Displacement

Comparing the Evinrude 25hp (2-Stroke) and Mercury 25hp EFI (3-Cyl) shows a displacement difference of 5cc. The Mercury features a larger 526cc 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 Evinrude is the lighter option at 48kg, offering a weight saving of 30kg 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 210W 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.