Stock #  YO2743

9999 YAMAHA F300XCB

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Specifications
Category Name
Outboard
Year
9999
Sale Type
New
Manufacturer
Yamaha
Vin
6KFX-1012743
Class
O
COOLING
Raw water, Thermostatic Control
EXHAUST
Through propeller boss
IGNITION
TCI Microcomputer
STARTING
Electric
RPM RANGE
5,000-6,000 (full throttle) / 600-1,000 (variable trolling)
GEAR RATIO
21/12 (1.75:1)
GEAR SHIFT
F-N-R
Model Code
F300XCB
ENGINE TYPE
4-stroke DOHC V6 24 valves
LUBRICATION
Wet Sump
Titlestatus
CLEAN
DISPLACEMENT
4,169cc (254.4 ci)
OIL CAPACITY
6.3L (with filter)
BORE & STROKE
96 x 96mm (3.78 x 3.78 in)
FUEL DELIVERY
Multi-point electronic fuel injection
Unitcondition
EXCELLENT
RECOMMENDED OIL
Yamalube 4-M FC-W 10W-30
INDUCTION SYSTEM
DOHC / 24 valves direct action with variable camshaft timing (VCT)
RECOMMENDED FUEL
Unleaded Gasoline (Minimum Pump Octane 89)
ALTERNATOR OUTPUT
70 Amps
COMPRESSION RATIO
10.3 : 1
key features
  • Even more charging power: Using Phase Angle Control (PAC), which adjusts the intensity of the stator’s magnetic field, XTO Offshore 450 models produce up to 96 net amps per engine in neutral. The new XTO Offshore provides more power for today's popular on-board, high-demand devices like gyro stabilizers, air conditioning, sound systems, and more, all while keeping starting batteries constantly charged.
  • Highest compression ratio in an outboard: Get more "bang" from every spark with a 12.2:1 compression ratio: better efficiency, more power and incredible throttle response. 
  • Plasma-fused sleeveless cylinders: This micro-textured surface is 60 percent harder than steel, yet significantly lighter and thinner, increasing displacement without increasing the size of the powerhead. Other benefits include reduced friction, faster heat transfer and improved fuel economy.
features & benefits

HIGHEST COMPRESSION RATIO IN AN OUTBOARD

Get more "bang" from every spark with a 12.2:1 compression ratio: better efficiency, more power and incredible throttle response.

EVEN MORE CHARGING POWER

Using Phase Angle Control (PAC), which adjusts the intensity of the stator’s magnetic field, XTO Offshore B models produce up to 96 net amps per engine in neutral. And since the electric steering only requires power while moving the engine, there is more power to spare while idling or trolling - when boaters need it most!

PLASMA-FUSED SLEEVELESS CYLINDERS

This micro-textured surface is 60 percent harder than steel, yet significantly lighter and thinner, increasing displacement without increasing the size of the powerhead. Other benefits include reduced friction, faster heat transfer and improved fuel economy.

EXTREME XTO OSTM PROPELLERS

Yamaha's new family of XTO OS Propellers are made to complement the torque potential of the Yamaha XTO, working as an integral part of a system to produce massive thrust in both forward and reverse. With new stainless steel material, they are also more resistant to corrosion and surface discolouration.

MULTI-PART COWLING SYSTEM

The cowling and engine covers on the XTO are in multiple pieces for easier access to specific parts of the powerhead and midsection. These are integrated using captive fasteners and a special one-piece seal.

IN-BANKTM EXHAUST

Yamaha's exclusive In-Bank exhaust improves flow with intake tracks entering the cylinder head from both sides of the powerhead, allowing space for exhaust gases to have a direct route to the lower unit and out the propeller hub.

THRUST-ENHANCING EXHAUST ROUTING

Below 2500 rpm, engine exhaust is directed away from the propellers for "cleaner" water and added bite in both forward and reverse, maximizing command and control at lower speeds.

WIDER TILT RANGE

At full extension, the XTO Offshore has been engineered to allow the entire motor and lower unit to be raised completely out of the water for added convenience.