500 motors in database
Mercury

20hp FourStroke EFI

2024 · 20 HP · 4-Stroke
VS
Johnson

20hp (2-Stroke)

1978 · 20 HP · 2-Stroke
Feature Mercury 20hp FourStroke EFI Johnson 20hp (2-Stroke)
Power & Performance
Horsepower 20 HP 20 HP
Displacement 333 cc 360 cc ←
Configuration 2 Cyl / Inline 2 Cyl / Inline
Weights & Dimensions
Dry Weight 45 kg (99 lbs) 38 kg (84 lbs) ←
Mechanical & Electrical
Gear Ratio 2.15:1
Alternator 145 W W
Fuel Delivery EFI Carbureted
Maintenance
Spark Plug Champion QL77JC4
Engine Oil Mercury FourStroke Oil 10W-30 TC-W3 2-Stroke