Yamaha 40hp Precision Blend vs Evinrude 40hp (4-Stroke)

Yamaha

40hp Precision Blend

1998 · 40 HP · 2-Stroke
VS
Evinrude

40hp (4-Stroke)

2004 · 40 HP · 4-Stroke
Spec Yamaha 40hp Precision Blend Evinrude 40hp (4-Stroke)
Power & Performance
Horsepower 40 HP 40 HP
Displacement 698 cc 815 cc ←
Configuration 3 Cyl / Inline-3 3 Cyl / Inline
Weights & Dimensions
Dry Weight 84 kg (185 lbs) ← 109 kg (240 lbs)
Mechanical & Electrical
Gear Ratio 1.85 2.27:1
Alternator 120 W 216 W ←
Fuel Delivery Carbureted (Oil Injected) EFI
Maintenance
Spark Plug NGK BR8HS-10 NGK DCPR7E
Engine Oil Yamalube 2M 10W-40 FC-W

Technical Comparison Analysis

Power & Displacement

Comparing the Yamaha 40hp Precision Blend and Evinrude 40hp (4-Stroke) shows a displacement difference of 117cc. The Evinrude features a larger 815cc 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 Yamaha is the lighter option at 84kg, offering a weight saving of 25kg 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 Evinrude offers the best charging performance with a 216W 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.