General Specifications
HP / kW
90 HP / 67.0 kW
Displacement
1950 cc (119.0 cu in.)
Cylinders
4 (Inline)
WOT RPM
4500 - 5500
Weight
189 kg / 417 lbs
Drive & Lower Unit
Gear Ratio
2.59:1
Shaft Length
20", 25"
Electrical System
Alternator Output 388 Watts
Starting System Electric
Technical Maintenance Toolkit
Verified service specifications for the Suzuki DF90 (Early 4-Stroke) (2006)
Lubrication
Engine Oil
10W-40 FC-W
Oil Capacity 5.5 Liters
Gearcase Lube 1050 ml
Ignition System
Spark Plug
NGK BKR6E
Gap Setting 0.031"
Firing Order 1-2-3-4
Performance Specs
Idle RPM 700 ± 50
WOT Range 4500-5500
Alternator 388W
Standard Maintenance Intervals
20H Break-in Service
100H Annual Tune-up
300H Water Pump & Seals
Identification
The serial number for the Suzuki DF90 (Early 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 Suzuki DF90 (Early 4-Stroke):
Model Evolution
History of the Suzuki 90HP series over the years:
Category Discovery
Reference Data
Information compiled from Suzuki Marine factory service manuals and original sales literature published in 2006.