Yamaha High Thrust 25 HP Outboard Motors
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Yamaha’s High Thrust 25 HP four strokes are built for jobs that call for more muscle—like pushing a heavy pontoon, adding extra kick to a multi-species boat or maneuvering a sailboat through a crowded marina. Their larger lower units and higher gear ratios produce substantially more thrust than conventional outboards of the same horsepower using standard propellers. In fact, when paired with our Dual Thrust™ propellers, Yamaha High Thrusts produce up to 60 percent more forward thrust and up to 70 percent more thrust in reverse. Now, the T9.9 are also wrapped in powerful style, available in new pearlescent white.
Our 432-cc 25-hp High Thrust outboard delivers the power and grip with exceptional efficiency. This newly redesigned outboard has the best power-to-weight ratio of all high-thrust 25 horsepower outboards. With the new design comes a no-battery-required Electronic Fuel Injection as well as electric and manual start on all models. The new 25hp High Thrust model comes in both 20 and 25 inch shaft lengths for a wider range of applications. Also included, Variable Trolling RPM Switch (VTS®) which allows slower trolling than standard in-gear idle for better fishing.
- Now available in new pearlescent white, in addition to Yamaha gray
- Compatible with mechanical controls
- 141/154 pounds
- Available in 20” and 25" shaft length
- Solid 16-amp alternator
| Engine Type | 2 cyl |
|---|---|
| Displacement | 432cc |
| Bore x Stroke | 65 x 65.1mm (2.554 x 2.558 in.) |
| Prop Shaft Horsepower | 25hp @ 5500rpm |
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Alternator Output at W.O.T. | 16 Amp |
| Compression Ratio | 9.3:1 |
| Fuel Induction System | Electronic Fuel Injection |
| Weight † | 64kg (141 lbs) / 70kg (154 lbs) |
| Recommended Fuel | Octane 87 |
| Recommended Engine Oil | Yamalube® 4M (See owner's manual) |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel/Water Separating Filter (external) |
| C.A.R.B. Rating | 2-Star |
| Exhaust | Through Propeller |
| Intake | 4 |
| Ignition | CDI Microcomputer |
| Spark Plug | DPR6EB-9 |
| Starting System | Electric and Manual |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 1.1L/1.0L |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 2.08:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 20" or 25" |
| Degree of Tilt | 63° |
| Degree of Trim | -3° through +16° |
| Mounting Centers | N/A |
| Steering | |
| Steering Angle (maximum) | 45° from center, either direction |
| Warranty | Limited 3 Year Limited Pleasure Boat - 1 Year Limited Commercial |