General Specifications
HP / kW
20 HP / 14.9 kW
Displacement
362 cc (22.1 cu in.)
Cylinders
2 (Inline)
WOT RPM
4500 - 5500
Weight
51 kg / 112 lbs
Drive & Lower Unit
Gear Ratio
2.08
Shaft Length
15", 20"
Electrical System
Alternator Output 145 Watts
Starting System Manual
Technical Maintenance Toolkit
Verified service specifications for the Parsun F20 (4-Stroke) (2024)
Lubrication
Engine Oil
Parsun 4-Stroke Oil
Oil Capacity 1.6 Liters
Gearcase Lube 250 ml
Ignition System
Spark Plug
NGK DPR6EA-9
Firing Order 1-2-3-4
Performance Specs
Idle RPM 700 ± 50
WOT Range 4500-5500
Alternator 145W
Standard Maintenance Intervals
20H Break-in Service
100H Annual Tune-up
300H Water Pump & Seals
Identification
The serial number for the Parsun F20 (4-Stroke) is typically found on a plate located on the transom bracket.
Technical Toolkit
Maintenance Compatibility
These models share common service parts with the Parsun F20 (4-Stroke):
Model Evolution
History of the Parsun 20HP series over the years:
Standalone production year.
Category Discovery
Reference Data
Information compiled from Parsun Marine factory service manuals and original sales literature published in 2024.