DF9.9TH

Suzuki’s High-Thrust 9.9 horsepower 4-stroke was specially designed for slammin’ salmon and whackin’ walleye. New power tilt system makes raising and lowering Suzuki’s DF9.9TH High Thrust a breeze. With plenty of torque, a high-thrust propeller and a 2.08:1 gear ratio deliver efficient and reliable low-speed trolling for a range of heavy fishing boats. Built for the big job, with forged aluminum connecting rods, a one-piece forged crankshaft and a low oil pressure warning sysytem. A large hub design even reduces cavitation in reverse. The DF9.9TH High Thrust outboard is one “thrust-worthy” fishing comparison.

Recommended Transom Height (inches) L: 20 X: 25
Starting System Electric
Weight LBS L: 120 X: 123
Engine Type SOHC 4-Valve
Fuel Delivery System Carburetor
No. Of Cylinders 2
Piston Displacement inches (cc) 18.4 (302)
Bore X Stroke Inches (mm) 2.28 x 2.24 (58 x 57)
Maximum Output HP 9.9
Operating Range (RPM) 4500 – 5500
Steering Tiller
Choke Electric
Oil Pan Capacity quarts (liter) 1.1 (1.0)
Ignition System Digital CDI
Alternator 12V 12A
Trim Position Power Tilt
Gear Ratio 2.08:1
Standard Propeller 4 x 10 x 5
Propeller Selection N/A
  • Over-Rev. Limiter
  • Low Oil Pressure Caution
  • Digital CDI
  • Fresh Water Flushing System
  • Power Tilt
  • Suzuki Anti-Corrosion System

Advantages

Model Name: DF9.9HT Honda 9.9 Mercury 9.9 Yamaha 9.9
Manufacturer: Suzuki Honda Mercury Yamaha
Horsepower: 9.9 High Thrust 9.9 (1) 9.9 (2) Big Foot (1) 9.9, (2) 9.9 High Thrust
Shaft Length (Inches): L (20), X (25) S (15), L (20), X (25) (1) S (15), L(20), (2) L (20), X (25) (1) S (15), L (20), (2) L (20), XL (25)
Weight (Lbs): T/L (118), T/X (121), TH/L(120), TH/X (123) S (92), L (98), X (107); add 8 lbs. for electric start (1) 84 (2) 96 (1) 91 (2) 104
Cylinders: In-line 2 2 2 2
Valves Per Cylinder: SOHC 2 Valves Per Cyl. SOHC 2 Valves Per Cyl. SOHC 2 Valves Per Cyl. SOHC 2 Valves Per Cyl.
Valve Train Drive: Single overhead belt Single overhead belt Single overhead belt Single overhead belt
Displacement: 18.4 cu. in. (302 cc) 13.5 cu. in. (222 cc) 12.8 cu. in. (208 cc) 19.7 cu. in. (323 cc)
Bore and Stroke (Inches/mm): 2.28 x 2.24 in. (58 x 57 mm) 2.3 x 2.1 in. (58 x 42 mm) 2.16 x 1.73 in. (54 x 44 mm) 2.32 x 2.32 in. (59 x 59 mm)
Operating Range (RPM): 4500 – 5500 5000 – 6000 5000 – 6000 4500 – 5500
Induction System: Carburetor 1 carb 1 carb 1 carb
Starting System: Electric start/choke Manual/electric Manual/electric (1) Mannual/electric (2) Electric
Lubrication: Wet sump Wet sump Wet sump Wet sump
Oil Tank Capacity: 1.2 qt. (1.1 lit.) 1.4 qt. (1.31 lit.) 1.8 qt. 1.1 qt. (10 lit.)
Ignition: Suzuki PEI CDI CDI CDI
Alternator: 12V 12A Manual 6A (10 A opt.), Electric 12A 6A Electric Start 6A Standard 10A (High Thrust)
Trim Type: Power Tilt 5 positions 5 positions, and shallow water 3 positions
Gear Ratio: 2.08:1 2.33:1 (1) 2.08:1 (2) 2.42:1 (1) 2.08;1/13:27 (2) 2.92:1/13:38
CARB Emissions Rating: 3-Star Ultra Low 3-Star Ultra Low 3- Star Ultra Low 3-Star Ultra Low
Standard Propeller (Blades x Dia. x Pitches (Ins.)): 4 x 10 x 5 4 x 9¼ x 8 (S) 3 x 9 x 9 (1) 3 x 9¼ x 9 (2) 3 x 11¾ x 9 ¼
Steering: Tiller/remote Unknown Unknown Unknown

DF9.9HT Advantages

Over Honda
  • 302cc (18.4 c.i.) vs. 222cc (13.5 c.i.) No replacement for displacement
  • Easier pull starting due to the compression reduction system
  • Oil filter vs. none
Over Mercury
  • Lighter weight: 97 lbs. vs 111 lbs.
  • Easier pull starting due to the compression reduction system
  • Natural fast idle / warmup vs. none
Over Yamaha
  • 302cc (18.4 c.i.) vs. 232cc (14.2 c.i.) No replacement for displacement
  • Easier pull starting due to the compression reduction system
  • 3-Star emission rating vs. 2-Star