The Yamaha F90LB (F90LB) is a mid-range performance leader, now available at a significant discount as a Scratch & Dent (Unit #6653) model. Despite minor cosmetic imperfections on the cowling or mid-section, this engine remains mechanically perfect and brand new. Built on the 1.8L four-cylinder SOHC platform, it delivers massive low-end torque and exceptional fuel efficiency, making it the smartest choice for repowering 20-inch transom boats.
Technical Specifications
| Model / MPN |
F90LB / 6653 |
| Condition |
Scratch & Dent (Cosmetic Only) |
| Shaft Length |
20 Inches (Long Shaft) |
| Engine Type |
1.8L Inline 4-Cylinder / SOHC |
| Displacement |
1832 cc |
| Starting System |
Electric Start / Power Trim & Tilt |
| Alternator Output |
35 Amp |
| Dry Weight |
Approx. 353 lbs (160 kg) |
Mechanical Perfection at a Discount
- Unmatched Torque: The SOHC design with 4 valves per cylinder optimizes airflow for superior hole-shot performance.
- Electronic Fuel Injection (EFI): Turnkey reliability in all conditions with maximum fuel atomization.
- Command Link® Compatibility: Fully compatible with Yamaha digital networking for real-time engine monitoring.
- Precision Charging: 35-amp alternator ensures all onboard sonar, livewells, and electronics stay powered.
- YDC-30 Alloy: Legendary anti-corrosion protection ensures the engine internals stay pristine even if the exterior has minor marks.
Why Buy Scratch & Dent Unit #6653?
This Yamaha F90LB unit represents the ultimate value. The "Scratch & Dent" status is purely aesthetic—often occurring during transport—meaning you save thousands of dollars without sacrificing the engine's 1.8-liter performance or reliability. It is an ideal unit for boaters who value performance over a showroom-perfect finish, or for those who plan to apply their own custom wraps. Every internal component is factory-new and inspected for full operational integrity.
Unit Specific FAQ
1. Does the warranty still apply to Scratch & Dent units?
Generally, Yamaha's mechanical warranty remains intact; however, cosmetic defects present at the time of purchase are excluded from future cosmetic claims.
2. Can I see photos of the specific scratches on unit #6653?
Yes. As a Genuine Provider, we can provide high-resolution photos of this specific unit (#6653) upon request to ensure full transparency before purchase.
Marine Equipment Specialist | Genuine Provider | Unit ID: 6653 | Certified Inspection
