General Specifications
HP / kW
50 HP / 37.3 kW
Displacement
808 cc (49.3 cu in.)
Cylinders
3 (Inline)
WOT RPM
5500 - 6000
Weight
97 kg / 214 lbs
Drive & Lower Unit
Gear Ratio
2.08:1
Shaft Length
20
Electrical System
Alternator Output 264 Watts
Starting System Electric
Technical Maintenance Toolkit
Verified service specifications for the Honda BF50 Midrange (2024)
Lubrication
Engine Oil
10W-30 FC-W
Oil Capacity 2 Liters
Gearcase Lube 500 ml
Ignition System
Spark Plug
NGK DR7EA
Gap Setting 0.035"
Firing Order 1-2-3-4
Performance Specs
Idle RPM 700 ± 50
WOT Range 5500-6000
Alternator 264W
Standard Maintenance Intervals
20H Break-in Service
100H Annual Tune-up
300H Water Pump & Seals
Identification
The serial number for the Honda BF50 Midrange is typically found on a plate located on the transom bracket.
Technical Toolkit
Maintenance Compatibility
These models share common service parts with the Honda BF50 Midrange:
Model Evolution
History of the Honda 50HP series over the years:
Standalone production year.
Category Discovery
Reference Data
Information compiled from Honda Marine factory service manuals and original sales literature published in 2024.