Yamaha Midrange 70 to 50 hp · Virginia Beach
Yamaha F70 outboard: specs, rigging and repower in Virginia Beach.
The F70 is a 1.0-liter, 16-valve SOHC four-cylinder making 70 hp at 5800 RPM. It weighs 253 lb with a 20-inch shaft and has a two-piece upper case, and Yamaha's page cites "10 percent lighter pistons" and "17 percent larger intakes." It comes in gray, pearlescent white and matte brown.
- Horsepower
- 70 hp
- Engine type
- i4
- Displacement
- 1.0L
- Shaft length
- 20"
- Weight †
- 114 kg (253 lbs)
Specifications
Yamaha F70
specs, as Yamaha lists them.
Specs and features: Yamaha, read from yamahaoutboards.com and Yamaha's Engine Comparison tool on 2026-10-05. Yamaha can change a model by model year; we confirm the exact engine when we quote.
| Weight † | 114 kg (253 lbs) |
|---|---|
| Full Throttle RPM Range | 5300 ~ 6300 rpm |
| Fuel Induction System | EFI |
| Recommended Engine Oil | Yamalube® 4M (See owner's manual) |
| Engine Type | i4 |
| Displacement | 1.0L |
| Bore x Stroke | 65 x 75mm (2.56 x 2.95 in.) |
| Prop Shaft Horsepower | 70hp at 5800 rpm |
| Alternator Output at W.O.T. | 15 Amp |
| Compression Ratio | 9.4:1 |
| Recommended Fuel | Octane 87 |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel/Water Separating Filter (external) |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Through Propeller |
| Intake | 16 |
| Ignition | TCI Microcomputer |
| Spark Plug | LKR7E |
| Starting System | Electric |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 2.1/1.9 |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 2.33:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 20" |
| Degree of Tilt | 65° |
| Degree of Trim | -4° through +16° |
| Mounting Centers | N/A |
| Steering Angle (maximum) | 40° from center, either direction |
| Warranty | Limited 3-year Pleasure, 3-year Government, 1-Year Commercial |
† Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
Compared
How the F70 compares
with the F60, F75.
From Yamaha's spec tables; weights are the lightest Yamaha lists, valvetrain is from its dealer spec signs.
Same family
F70 vs F60
- Rated output: F70 70hp at 5800 rpm; F60 60hp at 5500rpm.
- Valvetrain (spec sign): F70 SOHC (16-valve); F60 SOHC (8-valve).
- Weight: F70 6 lb heavier at the lightest weight Yamaha lists (253 lb vs 247 lb).
- Gear ratio: F70 2.33:1; F60 1.85:1.
- Alternator: F70 15 amp; F60 16 amp.
Same on both: 1.0L displacement, 20-inch shaft, 87 octane.
Next size up
F70 vs F75
- Rated output: F70 70hp at 5800 rpm; F75 75hp at 5500 rpm.
- Displacement: F70 1.0L; F75 1.8L.
- Weight: F70 100 lb lighter at the lightest weight Yamaha lists (253 lb vs 353 lb).
- Gear ratio: F70 2.33:1; F75 2.15:1.
- Alternator: F70 15 amp; F75 35 amp.
Same on both: SOHC (16-valve) valvetrain (spec sign), 20-inch shaft, 87 octane.
Rigging
Controls, gauges
and Helm Master EX.
Controls
- Mechanical Controls (compatible)
- Multi-Function Tiller Handle (compatible)
- Helm Master® EX (not available)
- Command Link Plus Digital Controls (not available)
Gauges
- Command Link and Analog Gauges (compatible)
- Command Link Plus Display (not available)
Yamaha lists Helm Master EX as not available for the F70.
Propellers Yamaha names for the F70
- Yamaha Talon SSFor F70 to F115 and T50/T60 on pontoon, walleye, fiberglass and deep-V boats.
- Yamaha Talon GPFor lighter boats with T50 to F115 outboards.
- Yamaha Talon PontoonFor pontoons, including heavily loaded ones, with T50 to F115 outboards.
- Yamaha Talon SS4Fits F70 to VF115 and T50/T60 K-series (4.25-inch) gearcases; SDS standard.
- Yamaha TalonHigh-grip, low-slip prop for F70 to F115 and T50/T60 pontoons and aluminum boats.
- TURBO QUESTSuited to small utility and work boats and F70 applications.
- TURBO QUEST 4Four-blade listing of the Quest line for small utility boats and F70 applications.
Yamalube oil change kit
- Small Oil Change KitYamaha's row: Model F70 · PROD. YEAR '10~ · 05W-30 KIT NA · 10W-30 KIT LUB-MRNSM-KT-10 · 20W-40 KIT LUB-MRNSM-KT-20
F70 model codes
| Model code | Controls | Color |
|---|---|---|
| F70LB | Remote mechanical | Gray |
| F70LB2 | Remote mechanical | Pearl White |
| F70LB3 | Remote mechanical | Matte Brown |
Model codes from Yamaha's current model-code list. Ask us which code fits your boat; we confirm it when we quote.
Features
What's built into
the F70.
- 1.0-liter 16-valve SOHC rated 70 hp.
- Two-piece upper case, 10 percent lighter pistons, 17 percent larger intakes.
- 253 lb; 20-inch shaft; 15-amp alternator.
- Optional Variable Trolling RPM Switch (VTS).
- Colors: Yamaha gray, pearlescent white and matte brown.
- Phaze Five anti-corrosion paint over YDC-30 alloy.
- Warning system limits RPM to 2000 on overheat or low oil pressure.
- Cowling drain and intake labyrinth keep water out of the intake.
- Pressurized wet-sump oiling for the SOHC valvetrain.
- Magnetic drain plug in the lower unit captures metal particles from gear oil.
- Single overhead camshaft for a compact, light powerhead.
- Multi-point EFI.
- TCI microcomputer ignition timing.
- Single throttle valve feeds pulse-tuned long intake tracks.
- Optional Multi-Function Tiller Handle with Variable Trolling RPM Switch (50-RPM steps).
- Freshwater flush device works without running the engine.
- Optional Command Link gauges in square or round styles.
Repower
Repowering with the F70
at Coastal Marine.
Coastal Marine is an Elite Yamaha dealer and an authorized Yamaha Repower Center on Shore Drive in Virginia Beach. A repower with the F70 takes the old or worn-out outboard off a sound hull, of any make, and puts the new Yamaha on, with the controls, gauges and rigging the new setup needs. Warranty work on the Yamaha power we install is authorized in-house.
We don't post engine prices. Tell us the boat, what's on the transom now and roughly how many hours it has, and we'll quote the F70 for it. Financing is available on repowers through Yamaha Financial Services.
F70 repower fit
- Shaft lengths
- 20-inchYamaha spec table
- Weight †
- 253 lbYamaha spec table
- Control types
- remote mechanical (F70LB, F70LB2, F70LB3)Yamaha model-code list
- Most popular propeller
- Talon® (Aluminum) with Shift Dampener System (SDS), 12” pitchYamaha dealer spec sign, 2026-09-01
The Midrange 70 to 50 hp family
Other engines
in this family.
Common questions
Yamaha F70
questions, answered.
Get a quote
on new Yamaha power.
Tell us the boat, the engines on it now and roughly the hours, and we'll quote the F70 for it. We answer same business day.