Specification 2024 Yamaha F9.9SMHB 2025 Yamaha F9.9JMHB
Manufacturer Yamaha Yamaha
Model F9.9SMHB F9.9JMHB
Year 2024 2025
Horsepower 10 HP 10 HP
Engine Type 4-stroke 4-stroke
Cylinders 2 2
Displacement 229 cc 231 cc
Bore × Stroke 54.8 × 48.5 mm 53.1 × 52.1 mm
RPM Range 5,000–6,000 RPM 5,200–6,000 RPM
Fuel System EFI EFI
Fuel Type Regular Regular
Weight 41 kg (90 lbs) 42 kg (93 lbs)
Starting System Electric/Manual Electric/Manual
Steering Both Tiller
Shaft Lengths S S
Gear Ratio 2.15:1 2.08:1
Alternator 10 A 10 A
Trim & Tilt Manual Manual
Prop Output 6.56 kW 6.56 kW
Recommended Boat 10–15 ft 10–15 ft
MSRP $3,290 $3,110
Better / Advantage Lower / Disadvantage Equal / Neutral

2024 Yamaha F9.9SMHB vs 2025 Yamaha F9.9JMHB — Which Is Better?

Choosing between the 2024 Yamaha F9.9SMHB and the 2025 Yamaha F9.9JMHB comes down to your specific boating needs and priorities.

The 2024 Yamaha F9.9SMHB (2024) is a 10hp 4-stroke outboard from Yamaha, weighing 41 kg (90 lbs). Its electronic fuel injection delivers reliable starts and improved fuel economy compared to carbureted alternatives.

The 2025 Yamaha F9.9JMHB offers 10hp with 4-stroke technology, tipping the scales at 42 kg (93 lbs). With a larger displacement of 231 cc, it can deliver more torque at lower RPMs.

Both motors are solid choices in the 9.9 HP class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.