8 HP Outboard Motors: Twin-Cylinder Muscle in a Portable Package
An 8 HP is the first size with two cylinders, a real step up in smoothness and push. Here is every 8 HP we sell and the closest alternatives.
8 HP outboard motors are compact two-cylinder four-strokes, typically around 80 to 95 lb, used to push sailboats, small fishing boats and heavier tenders, or as a trolling kicker on a bigger boat.
Lena versus the fuel dock
Lena’s 24-foot sailboat came with a tired 4 HP that was fine on still mornings and hopeless the rest of the time. Every return to the marina meant a crosswind, a narrow fairway, and a small audience holding fenders and opinions.
After one especially creative arrival at the fuel dock, she switched to an 8 HP long-shaft four-stroke. The difference was instant: real thrust in reverse, steady control at low revs, and a smooth two-cylinder hum instead of a rattle. Her docking audience has since lost interest, which Lena considers the best review she has ever received.
Every 8 HP outboard motor we sell
Three brands build a true 8 HP. Suzuki and Honda jump from 6 HP to about 10 HP, so their nearest models are listed too. Prices are starting prices in USD.
How do the 8 HP models compare?
The biggest split is fuel delivery: Mercury’s EFI starts and idles more easily in cold weather, while carbureted models cost less.
| Model | Cylinders | Fuel system | Standout | From |
|---|---|---|---|---|
| Tohatsu MFS8 | 2 | Carburetor | Lowest price, light for its class | $2,250 |
| Mercury 8 EFI | 2 | Fuel injection | Easy starts, no carb to gum up | $2,580 |
| Yamaha F8 | 2 | Carburetor | Popular sailboat auxiliary | $2,820 |
| Suzuki DF9.9B (nearest) | 2 | Carburetor | More power, similar weight | $2,950 |
| Honda BF10 (nearest) | 2 | Carburetor | Smooth, quiet Honda build | $3,150 |
Most 8 HP motors weigh roughly 80 to 95 lb depending on shaft length and starter. See each product page for exact figures.
Who is an 8 HP outboard for?
- Sailboat owners from about 20 to 26 ft (long shaft).
- Anglers who want a trolling kicker beside a larger main engine.
- 12 to 14 ft aluminum boats carrying two people and gear.
- Heavier tenders and RIBs that feel sluggish on a 6 HP.
- Buyers who want twin-cylinder smoothness without 9.9 HP pricing.
Compare nearby sizes: 6 HP outboards and 9.9 HP outboards.
8 HP outboard motors: FAQ
How fast will an 8 HP outboard push a boat?
A light 12 ft aluminum boat with one person may just plane at around 12 to 15 mph. Heavier boats and sailboats will cruise at displacement speed.
Is an 8 HP outboard portable?
It is portable but heavy for one person at around 80 to 95 lb. Most owners leave it on the transom or use a motor cart to move it.
Is EFI worth it on an 8 HP?
If the motor sits unused for weeks or you boat in cold weather, EFI helps with easy starts and avoids carburetor varnish. For frequent use, a carbureted motor works well too.
Can an 8 HP be used as a kicker motor?
Yes. It is a common kicker size for slow trolling and as a get-home backup. Choose the shaft length that matches your kicker bracket.
Dock like nobody is watching.
Pick your 8 HP, or tell us your boat and we will size it for you.