Mariner 15hp International (Yamaha-built 684) vs Hidea HD15F (2-Stroke)

Mariner

15hp International (Yamaha-built 684)

1990 · 15 HP · 2-Stroke
VS
Hidea

HD15F (2-Stroke)

2024 · 15 HP · 2-Stroke
Spec Mariner 15hp International (Yamaha-built 684) Hidea HD15F (2-Stroke)
Power & Performance
Horsepower 15 HP 15 HP
Displacement 246 cc 246 cc
Configuration 2 Cyl / Inline 2 Cyl / Inline-2
Weights & Dimensions
Dry Weight 34 kg (75 lbs) ← 38 kg (84 lbs)
Mechanical & Electrical
Gear Ratio 2.08 2.08
Alternator 80 W 80 W
Fuel Delivery Carbureted Carbureted
Maintenance
Spark Plug NGK B7HS NGK BR7HS
Engine Oil TC-W3 2-Stroke TC-W3 (50:1)

Technical Comparison Analysis

Power & Displacement

Comparing the Mariner 15hp International (Yamaha-built 684) and Hidea HD15F (2-Stroke) shows a displacement difference of 0cc. The Hidea features a larger 246cc 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 Mariner is the lighter option at 34kg, offering a weight saving of 4kg 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 Hidea offers the best charging performance with a 80W 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.