Yamaha F60FETL Specifications
| Engine Model: Yamaha F60FETL |
| Engine Type: 4-stroke inline 4-cylinder SOHC 8-valve gasoline outboard engine |
| Total Displacement: 60.8 cu.in (996 cc) |
| Rated Engine Power: 60 Hp (44.1 kW) at 5500 rpm |
| Fuel System: Electronic Fuel Injection (EFI) |
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The Yamaha F60FETL is a 60-horsepower,
four-stroke outboard engine that represents a refined balance of power,
efficiency, and advanced technology within Yamaha's midrange lineup.
This model is distinguished by its sophisticated electronic fuel
injection, electric start, and power trim and tilt, providing operators
with effortless command and the ability to precisely adjust the boat's
attitude for optimal handling and fuel economy.
The F60FETL is built upon a proven 1.0-liter, four-cylinder powerhead,
delivering smooth, responsive power across the entire rpm range, making
it exceptionally well-suited for a wide variety of recreational and
semi-commercial applications, from fishing boats to small pontoons and
auxiliary power for sailing vessels.
Its four-stroke design ensures cleaner operation with reduced emissions
and noise, while advanced features like the Prime Start system and
high-output alternator enhance user convenience and onboard electrical
capacity.
The Yamaha F60FETL is a 4-stroke, Single Overhead Camshaft (SOHC),
inline 4-cylinder engine featuring an 8-valve configuration. The total
displacement is 996 cc (60.8 cu.in), achieved through a bore and stroke
of 65.0 mm (2.56 inches) and 75.0 mm (2.95 inches), respectively. It
produces a maximum prop shaft output of 44.1 kW, equivalent to 60
horsepower, at 5,500 rpm. The engine has a full throttle operating range
of 5,000 to 6,000 rpm. The idle speed is set between 700 and 800 rpm.
The compression ratio is 9.5:1.
The powerhead is built upon a robust cylinder block designed for
longevity and smooth operation. The cylinder head incorporates a Single
Overhead Camshaft (SOHC) operating four valves per cylinder - two intake
and two exhaust - for optimized breathing and combustion efficiency.
The valve clearances are critical for performance and must be maintained
within specified ranges. The intake valve clearance is set to 0.15-0.25
mm (0.006-0.010 inches), while the exhaust valve clearance is set to
0.25-0.35 mm (0.010-0.014 inches). The camshaft and crankshaft are
precision components requiring careful handling during service.
The fuel system is a sophisticated Electronic Fuel Injection (EFI)
system, managed by a reliable microcomputer module that controls fuel
delivery for clean and efficient performance. This system automatically
adjusts the fuel mixture for varying conditions, eliminating the need
for manual choke adjustments.
The Prime Start system provides effortless starting, comparable to
starting an automobile. The engine operates on regular unleaded gasoline
with a minimum octane rating of 86. A standard remote fuel tank has a
capacity of 25.0 liters (6.6 US gallons).
The F60FETL utilizes a wet sump lubrication system, meaning engine oil
is contained within a sump in the powerhead. The recommended engine oil
is high-quality 4-stroke outboard motor oil, with Yamalube being the
preferred brand.
Acceptable oil types include SAE 10W-30 or 10W-40 viscosities that meet
API service classifications SE, SF, SG, SH, SJ, or SL. The total engine
oil capacity is 2.1 liters (2.0 US quarts) when replacing the oil
filter, and 1.9 liters without filter replacement.
Cooling is managed by a raw-water system with a thermostat, circulating
water through passages in the engine block and cylinder head. A water
pump, driven by the drive shaft, draws water from outside the boat and
forces it through the engine to maintain optimal operating temperatures.
A pilot water outlet on the engine exterior provides a visual indication
that the water pump is functioning and cooling water is circulating
properly. A fresh water flushing system is integrated into the design,
facilitating easy removal of salt and debris after operation in marine
environments.
| Mid Section and Lower Unit |
The exhaust system is designed to expel gases through the propeller hub
for quieter operation and reduced back pressure. The gear shift
positions are forward, neutral, and reverse. The gear ratio is 1.85:1,
derived from a 24/13 gear set. The reduction gear type is spiral bevel
gear, and the clutch is a dog type, providing positive engagement.
The propeller shaft utilizes a spline drive system for secure propeller
mounting, and the propeller rotation, when viewed from the rear, is
clockwise in forward gear. The gear case requires hypoid gear oil
meeting API GL-4 SAE 90 standards, with a total capacity of 0.43 liters
(0.45 US quarts).
The engine is equipped with a power trim and tilt system, providing
full, relaxed control over the engine's angle relative to the transom.
The trim angle is adjustable within a range of -4 to 20 degrees,
allowing operators to optimize boat attitude for acceleration, fuel
economy, and ride comfort under varying load and water conditions. The
tilt-up angle is 69 degrees.
The system also features a shallow water drive capability, allowing the
engine to be quickly tilted and operated at a shallower angle for safe
navigation through shallow water without striking the bottom. An
optional tilt limiter system can be installed to prevent the engine from
tilting beyond a preset point. The steering angle is 40 degrees in both
directions.
Selecting the correct propeller is essential for achieving optimal
engine performance within the recommended full throttle operating range.
The Yamaha F60FETL utilizes a spline drive system and is designed to run
with a wide selection of aluminum and stainless steel propellers.
A standard propeller size for this engine is 3 blades with an 11-1/8
inch diameter and 13-inch pitch. The appropriate propeller allows the
engine to operate at or near the top of its 5,000-6,000 rpm full
throttle range when the boat is properly loaded. Propeller markings
indicate the diameter and pitch in inches; for example, a propeller
marked "11-1/4 x 14" indicates an 11.25-inch diameter and 14-inch pitch.
The overall length of the outboard is 698 mm (27.5 inches). The overall
width is 386 mm (15.2 inches). The overall height for the long shaft
model, designated for a 20-inch transom, is 1,435 mm (56.5 inches), with
a corresponding transom height of 527 mm (20.7 inches). The dry weight
for the long shaft version is approximately 113 to 114 kg (249 to 251
lbs), reflecting the robust construction and four-stroke architecture of
the powerhead.
Routine maintenance is essential for optimal performance and longevity.
The engine is equipped with a TCI (Transistor Controlled Ignition)
ignition system with microcomputer control, which provides precise spark
timing without moving parts for reliable, maintenance-free operation.
The alternator output is a robust 12V - 16A system complete with a
rectifier/regulator to maintain proper battery charging, with 9A
dedicated to battery charging. The standard spark plug for the F60FETL
model is an NGK DPR6EB-9.
The spark plug gap must be maintained between 0.8 and 0.9 mm (0.031 to
0.035 inches). When installing spark plugs, the threads must be clean,
and the plug should be torqued to specification. Fuel consumption at
5,500 rpm is approximately 18.9 liters per hour. The maintenance
schedule includes key services at initial break-in (first 10 hours), 50
hours (3 months), 100 hours (6 months), and annual 200-hour intervals.
Items requiring periodic attention include the valve clearance, which
must be inspected and adjusted by qualified personnel using feeler
gauges. The engine is compatible with Yamaha's digital network gauges,
allowing operators to monitor critical engine parameters in real time. A
Variable Trolling RPM feature allows for precise speed control at low
speeds.
Adhering to correct torque specifications is critical during assembly
and maintenance to ensure proper sealing, component retention, and safe
operation. The spark plug must be torqued to 17 Nm (12.5 lb-ft) to
ensure proper seating without damaging the cylinder head threads. The
propeller nut, which secures the propeller to the propeller shaft,
requires 34 Nm (25 lb-ft).
The engine oil drain plug must be tightened to 27 Nm (20 lb-ft) to
prevent leaks while allowing future removal. The oil filter requires 18
Nm (13.5 lb-ft) for proper sealing against its mounting surface.
Additional torque specifications for critical fasteners include the
cylinder head bolts, which require precise multi-stage torquing during
service, and the flywheel nut, which requires the use of a flywheel
holder tool to prevent crankshaft rotation during tightening or
loosening.
The Yamaha F60FETL is intended for use on boats where the total
horsepower does not exceed the vessel's maximum rated power capacity, as
indicated on the boat's capacity plate. Its 60-horsepower output makes
it particularly well-suited for boats in the 4.8 to 5.5 meter range,
with extensive testing documented on hulls from 4.87 to 5.41 meters in
length. The engine performs optimally on boats with a gross weight not
exceeding 400-450 kg for planing performance, though it can push heavier
loads with appropriate propeller selection.
Common applications include aluminum fishing boats, utility skiffs,
pontoons, small center-console vessels, and as auxiliary power for
larger sailboats. The long shaft configuration is specifically designed
for boats with a 20-inch transom. The engine's lightweight design
relative to its power output and displacement makes it particularly
attractive for vessels where weight distribution is a concern. It is
equally at home in freshwater lakes and coastal saltwater environments,
thanks to its corrosion-resistant engineering.
The optional Yamaha Customer Outboard Protection (Y-COP) system adds an
extra layer of security against unauthorized use. Proper installation,
including correct remote control cable adjustment and battery selection,
is essential to ensure safe handling and prevent loss of control. As
with all outboards, operators must always ensure the engine stop switch
lanyard is attached to a secure part of their clothing or life jacket.
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