Yamaha 90HP Jet Outboard F90JB
$7,830.00
The Yamaha 90HP Jet Outboard F90JB delivers powerful, prop-free performance for shallow and rocky waterways, combining EFI efficiency with exceptional maneuverability.
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Overview Yamaha 90HP Jet Outboard F90JB
The Yamaha 90HP Jet Outboard F90JB is engineered for boaters who need maximum freedom in shallow, rocky, and fast-moving waters. Featuring a jet drive system with no exposed propeller, this outboard allows confident navigation where conventional prop-driven motors simply can’t go.
Powered by Yamaha’s 1.8-liter inline four-cylinder EFI engine, the F90JB produces strong jet-drive thrust while maintaining smooth operation, fuel efficiency, and long-term durability.
Features and Performance
- Jet Drive System (65 HP at the Pump) – Safe, prop-free operation in shallow and rocky waterways
- 1.8L Inline-4 SOHC Engine – Compact, lightweight design with strong midrange power
- Electronic Fuel Injection (EFI) – Reliable cold starts and consistent fuel efficiency
- Long-Track Induction System – Improved throttle response and smooth acceleration
- High-Output 35-Amp Alternator – Supports electronics and onboard accessories
- Power Trim & Tilt (Standard) – Precise control in changing water conditions
- Freshwater Flush Device – Easy maintenance without running the engine
- Phaze Five™ Anti-Corrosion System – Five-layer protection for harsh marine environments
Why You Should Buy it
The Yamaha F90JB Jet Outboard is the ideal solution for river runners, shallow-water anglers, and jet boat owners who want power without prop damage risk. Its combination of EFI efficiency, jet-drive safety, and Yamaha reliability makes it a top choice for demanding environments.
| Specification | Details |
|---|---|
| Engine Type | Yamaha F90JB Jet Four Stroke |
| Jet Output Power | 65 HP |
| Cylinders | 4 |
| Displacement | 1.8 L |
| Fuel System | Electronic Fuel Injection (EFI) |
| Shaft Length | 25 in (X-Long) |
| Steering | Remote Mechanical |
| Starting System | Electric |
| Trim System | Power Trim & Tilt |
| Trim Range | -4° to +16° |
| Full Throttle RPM | 5000 – 6000 rpm |
| Alternator Output | 35 amp |
| Weight | 354 lbs |
| Warranty | 2-Year Manufacturer Warranty (Yamaha) |
- Yamaha 90HP Jet Outboard F90JB
- Jet Lower Unit
- Power Trim & Tilt System
- Steering Link Arm
- Owner’s Manual

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