Yamaha F90JB Jet 90 HP Outboard Motor – Specifications
| Feature | Description |
|---|---|
| Model | Yamaha F90JB |
| Type | Jet Drive Outboard Motor |
| Engine Type | 4-Stroke, DOHC, 16-Valve, In-Line 4-Cylinder |
| Displacement | 1752 cc |
| Maximum Power Output | 90 HP @ 5000?6000 RPM |
| Fuel Induction | Electronic Fuel Injection (EFI) |
| Starting System | Electric Start |
| Control Type | Mechanical Remote Control |
| Shaft Length | Jet Drive (No Shaft) |
| Steering | Remote Mechanical or Hydraulic Steering |
| Gear Shift | F-N-R (Forward – Neutral – Reverse) |
| Exhaust | Through Jet System |
| Cooling System | Water-cooled with thermostat |
| Alternator Output | 35 Amps |
| Fuel Type | Unleaded Gasoline (Minimum 87 Octane) |
| Dry Weight | Approximately 150 kg |
| Recommended Use | Ideal for jet boats, shallow water vessels, and performance boats |
| Warranty | 3-Year Limited Manufacturer Warranty (Non-Commercial Use) |
| Certifications | EPA, CARB 3-Star, CE Certified |












Lennox Washington (verified owner) –
Best customer service I’ve encountered when buying a large boat engine.
Penn Howard (verified owner) –
Will definitely buy my next boat motor here. IDMTB is simply the best.
Xena Martin (verified owner) –
Motor arrived in perfect condition. Expertly sealed and protected by IDMTB.
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IDMTB is reliable, efficient, and friendly. Everything you need in an online store.
Maeve Wood (verified owner) –
Wonderful experience with IDMTB. Smooth process, excellent staff.
Quinlan Quinn (verified owner) –
Their expertise in boat engines is clear. Excellent pre-sale consultation.
Una Sanders (verified owner) –
Extremely pleased with the level of care and service provided by IDMTB’s staff.
Orion Hayes (verified owner) –
The quality confirms the authenticity. Excellent boat motor, exactly as advertised.
Elias Schmidt (verified owner) –
They provided all necessary warranty forms. IDMTB streamlines the procedure.