Manufacturer Part Number (MPN)
MFS9.9EEFS
Marine Engineer Insight: The Tohatsu MFS9.9EEFS (MPN MFS9.9EEFS) is the ultimate tiller-operated portable. By combining **Electronic Fuel Injection (EFI)** with the luxury of **Electric Start**, this 15" short shaft model removes the physical effort of manual starting while providing the smooth, precise throttle response only EFI can offer. Built on Tohatsu’s award-winning 333cc twin-cylinder platform, it is the most sophisticated 9.9hp motor for small skiffs, RIBs, and aluminum fishing boats.
Turn-Key Reliability & High-Torque Efficiency
The Tohatsu MFS9.9EEFS (MPN: MFS9.9EEFS) represents the pinnacle of small outboard technology. The "Battery-Less" EFI system ensures that even if your battery is low, the engine can be manually pull-started with ease, though the primary electric start provides turn-key convenience. The twin-cylinder SOHC design provides a balanced, quiet ride that single-cylinder alternatives simply cannot match, making it a favorite for long days of cruising or trolling.
This model features a high-output 12V 145W (12A) alternator, the largest in its class, providing exceptional charging power for your electronics, livewells, and lighting. The multi-function tiller handle places the shift lever, throttle, and emergency stop switch all within easy reach for ergonomic one-handed operation. With Tohatsu's **Variable Idling Control**, anglers can fine-tune their trolling speed at the touch of a button, ensuring the perfect lure presentation every time.
Technical Specifications
| Official MPN |
MFS9.9EEFS |
| Engine Type |
2-Cylinder 4-Stroke SOHC |
| Shaft Length |
15" (Short Shaft) |
| Fuel Delivery |
Electronic Fuel Injection (EFI) |
| Starting System |
Electric Start (Manual Backup Included) |
| Alternator Output |
12V, 145W, 12A |
| Control Type |
Multi-Function Tiller |
MFS9.9EEFS Key Performance Features:
- Modern EFI Technology: Eliminates carburetor issues and provides effortless starts in all temperatures.
- High-Output Alternator: 12-Amp system keeps your battery charged and powers a full suite of electronics.
- Variable Idling Control: Adjust trolling speeds (750 to 1050 RPM) directly from the tiller.
- Ultra-Smooth Operation: Twin-cylinder design significantly reduces vibration and operator fatigue.
- EPA/CARB 3-Star Rated: Ultra-low emissions for an environmentally responsible boating experience.
Frequently Asked Questions
1. Does this motor come with the battery?
No, marine starting batteries are sold separately. We recommend a 12V 330 Cold Cranking Amp (CCA) battery for optimal electric start performance.
2. Is a fuel tank included in the box?
Yes, the MFS9.9EEFS package includes a 3.1-gallon (12L) external fuel tank, fuel line, and a standard aluminum propeller.
Tohatsu Authorized Dealer | Verified 9.9hp EFI Data | MPN: MFS9.9EEFS
