Yamaha V6 Offshore 4.3L · Virginia Beach
Yamaha F350 outboard: specs, rigging and repower in Virginia Beach.
The F350 is Yamaha's 4.3-liter V6 Offshore, rated 350 hp at 6000 RPM on 89-octane fuel. Variable Camshaft Timing, an 81 mm electronic throttle valve and a 70-amp alternator come with it, and its electric steering is built in, so there are no hydraulic lines in the bilge. It rigs with digital controls or Helm Master EX in 25, 30 and 35-inch shafts.
- Horsepower
- 350 hp
- Engine type
- V6
- Displacement
- 4.3L
- Shaft length
- 25" - 30" - 35"
- Weight †
- 286 kg (629 lbs) / 291 kg (642 lbs) / 296 kg (653 lbs)
Specifications
Yamaha F350
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 † | 286 kg (629 lbs) / 291 kg (642 lbs) / 296 kg (653 lbs) |
|---|---|
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Fuel Induction System | EFI |
| Recommended Engine Oil | Yamalube® 4M (See owner's manual) |
| Engine Type | V6 |
| Displacement | 4.3L |
| Bore x Stroke | 96 x 98mm (3.78 x 3.86 in) |
| Prop Shaft Horsepower | 350 @ 6000 |
| Alternator Output at W.O.T. | 50 – 70 amp |
| Compression Ratio | 11.0:1 |
| Recommended Fuel | Octane 89 |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel / Water Separating Filter (external) |
| C.A.R.B. Rating | 3 Star |
| Exhaust | Through Propeller (Except in Reverse Under 2500 RPM) |
| Intake | 24 |
| Ignition | TCI Microcomputer |
| Spark Plug | ILMAR7E-9 / Iridium |
| Starting System | Electric w/ PTT |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 7.9 L/ 7.6 L |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 1.75:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 25" - 30" - 35" |
| Degree of Tilt | 69° |
| Degree of Trim | -3° through +16° |
| Mounting Centers | 28.5" |
| Steering | Integrated, Electric Actuation |
| Steering Angle (maximum) | 32° from center, either direction |
| Warranty | Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
| HP Rating at Propshaft | 350 @ 6000 |
† 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 F350 compares
with the XF425, F300.
From Yamaha's spec tables; weights are the lightest Yamaha lists, valvetrain is from its dealer spec signs.
Next size up
F350 vs XF425
- Rated output: F350 350 @ 6000; XF425 425hp at 5500 RPM.
- Displacement: F350 4.3L; XF425 5.6L.
- Weight: F350 323 lb lighter at the lightest weight Yamaha lists (629 lb vs 952 lb).
- Gear ratio: F350 1.75:1; XF425 (25/14) 1.79.
- Alternator: F350 50 – 70 amp; XF425 100 Amp Gross, Max.
- Fuel induction: F350 EFI; XF425 Direct Injection / Up to 2900 PSI.
Same on both: 25, 30 and 35-inch shaft, 89 octane, 28.5-inch mounting centers.
Next size down
F350 vs F300
- Rated output: F350 350 @ 6000; F300 300hp at 5500 rpm.
- Displacement: F350 4.3L; F300 4.2L.
- Weight: F350 78 lb heavier at the lightest weight Yamaha lists (629 lb vs 551 lb).
- Shafts: F350 25, 30 and 35-inch; F300 25, 30 and 35-inch (35-inch: F300 DEC only).
- Compatible controls: only the F300 lists Mechanical Controls.
Same on both: DOHC (24-valve) valvetrain (spec sign), 1.75:1 gear ratio, 50 – 70 amp alternator, 89 octane, 28.5-inch mounting centers.
Rigging
Controls, gauges
and Helm Master EX.
Controls
- Helm Master® EX (compatible)
- Digital Controls (compatible)
- Mechanical Controls (not available)
- Multi-Function Tiller Handle (not available)
Gauges
- CL5 Touchscreen Display (compatible)
- Digital and Analog Gauges (compatible)
Yamaha lists Helm Master EX as compatible with the F350. We fit Helm Master EX upgrades and confirm what a given boat can take before we quote it.
F350 model codes
| Model code | Controls | Color |
|---|---|---|
| F350XSA | Digital (DEC) | Gray |
| LF350XSA | Digital (DEC) | Gray |
| F350USA | Digital (DEC) | Gray |
| LF350USA | Digital (DEC) | Gray |
| F350ESA | Digital (DEC) | Gray |
| LF350ESA | Digital (DEC) | Gray |
| F350XSA2 | Digital (DEC) | Pearl White |
| LF350XSA2 | Digital (DEC) | Pearl White |
| F350USA2 | Digital (DEC) | Pearl White |
| LF350USA2 | Digital (DEC) | Pearl White |
| F350ESA2 | Digital (DEC) | Pearl White |
| LF350ESA2 | Digital (DEC) | Pearl White |
| F350XSA4 | Digital (DEC) | Classic White |
| LF350XSA4 | Digital (DEC) | Classic White |
| F350USA4 | Digital (DEC) | Classic White |
| LF350USA4 | Digital (DEC) | Classic White |
| F350ESA4 | Digital (DEC) | Classic White |
| LF350ESA4 | Digital (DEC) | Classic White |
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 F350.
- 350 hp from a 4.3-liter V6.
- 89-octane fuel recommended.
- Shaft lengths: 25, 30 and 35 inches.
- Alternator output up to 70 amps.
- Cowling exhaust port and stator fan lower under-cowl heat to free up charging current.
- Large oil-cooler capacity combined with plasma-fused sleeveless cylinders.
- Variable Camshaft Timing strengthens low- and mid-range power and throttle response.
- Built-in digital electric steering; no hydraulic pumps or lines in the bilge.
- Center-mounted 81 mm electronic throttle valve, eight percent larger than the F300's.
- Higher-lift camshaft profile and redesigned valve lifters lengthen valve opening.
- Clutch dog machined with more teeth to carry more torque to the propeller.
- 70-amp alternator delivers over 30 net amps per engine at idle.
- Iridium spark plugs and revised injection mapping extend injector duration.
- Helm Master EX compatible; optional Y-COP theft deterrent disables ignition and fuel when docked.
- TotalTilt: double-tap the trim button for a full tilt up or down.
- Thrust Enhancing Reverse Exhaust keeps exhaust off the propeller below 2500 RPM and in reverse.
Repower
Repowering with the F350
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 F350 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 F350 for it. Financing is available on repowers through Yamaha Financial Services.
F350 repower fit
- Shaft lengths
- 25, 30 and 35-inchYamaha spec table
- Mounting centers
- 28.5-inchYamaha spec table
- Weight †
- 629 to 653 lbYamaha spec table, lightest to heaviest listed
- Control types
- digital (DEC) (F350XSA, LF350XSA, F350USA, LF350USA, F350ESA, LF350ESA, F350XSA2, LF350XSA2, F350USA2, LF350USA2, F350ESA2, LF350ESA2, F350XSA4, LF350XSA4, F350USA4, LF350USA4, F350ESA4, LF350ESA4)Yamaha model-code list
- Steering
- Integrated, Electric ActuationYamaha spec table
- Most popular propeller
- Saltwater Series II, with Shift Dampener System (SDS), 17” pitchYamaha dealer spec sign, 2026-09-01
The V6 Offshore 4.3L family
The family
and the full lineup.
Common questions
Yamaha F350
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 F350 for it. We answer same business day.