Yamaha F60FET Specifications
| Engine Model: Yamaha F60FET |
| 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 F60FET is a 60-horsepower,
four-cylinder, four-stroke outboard motor that represents a significant
advancement in outboard technology, combining the smoothness of a
multi-cylinder engine with the efficiency of electronic fuel injection.
This model is designed for boaters who demand refined performance, quiet
operation, and excellent fuel economy.
The F60FET features a sophisticated SOHC (Single Overhead Camshaft)
valvetrain with 16 valves, delivering ample power across the entire RPM
range while maintaining the legendary reliability associated with Yamaha
outboards. The engine is configured for remote control operation and
includes electric starting, a powerful 16-amp alternator for battery
charging, and a power trim and tilt system for precise handling.
Advanced features such as Prime Start enrichment for effortless cold
starts, variable trolling RPM control, and compatibility with the YCOP
immobiliser system make this engine suitable for a wide range of
applications, from recreational fishing to commercial use. The F60FET's
lightweight and compact design, combined with its advanced four-stroke
technology, provides an exceptional balance of power, efficiency, and
environmental responsibility.
Engine type: 4-stroke, SOHC, In-line 4, 16-valve.
Number of cylinders: 4.
Total displacement: 996 cc (60.8 cu in).
Bore and stroke: 65.0 x 75.0 mm (2.56 x 2.95 in).
Compression ratio: 9.5:1.
Maximum output: 44.1 kW (60 hp) at 5,500 rpm.
Full throttle operating range: 5,000-6,000 rpm.
Idle speed: 700-800 rpm.
Fuel system: EFI (Electronic Fuel Injection).
Ignition system: TCI (Transistor Controlled Ignition).
Starting system: Electric.
Control system: Remote control.
Alternator output: 12V, 16A with rectifier/regulator.
Enrichment system: Prime Start (automatic).
Spark plug: NGK DPR6EB-9.
Spark plug gap: 0.8-0.9 mm (0.031-0.035 in).
Cooling system: Water, thermostatically controlled.
Exhaust system: Through propeller boss.
Lubrication system: Wet sump.
Recommended fuel: Regular unleaded gasoline, minimum 86 octane.
Recommended oil: 4-stroke outboard motor oil (Yamalube recommended).
Engine oil type: SAE 10W-30, 10W-40, API SE, SF, SG, SH, SJ, SL.
Engine oil capacity: 2.1 L (2.2 US qt) with filter, 1.9 L (2.0 US qt)
without filter.
Gear oil type: Hypoid gear oil SAE90.
Gear oil capacity: 0.43 L (0.45 US qt).
Valve clearance (intake): 0.15-0.25 mm (0.006-0.010 in).
Valve clearance (exhaust): 0.25-0.35 mm (0.010-0.014 in).
Gear ratio: 1.85 (24/13).
Gear shift positions: Forward - Neutral - Reverse.
Reduction gear type: Spiral bevel gear.
Clutch type: Dog clutch.
Propeller shaft type: Spline.
Propeller direction (rear view): Clockwise.
Trim/tilt system: Power trim and tilt.
Trim angle range: -4° to 20° (hydro: 5 positions).
Tilt-up angle: 69 degrees.
Steering angle: 40 + 40 degrees.
Shallow water drive: Included.
The Yamaha F60FET features a sophisticated four-cylinder powerhead
engineered for smooth, refined power delivery and long-term durability.
The cylinder block houses four cylinders arranged in-line with a bore of
65.0 mm and stroke of 75.0 mm, resulting in a total displacement of 996
cc. The SOHC (Single Overhead Camshaft) valvetrain operates 16 valves
(four valves per cylinder) through a timing chain, providing excellent
breathing efficiency for optimal power output across the RPM range.
The cylinder head is designed with optimized intake and exhaust ports to
maximize airflow and combustion efficiency. The valve clearances must be
maintained within specified ranges: intake valves 0.15-0.25 mm
(0.006-0.010 in) and exhaust valves 0.25-0.35 mm (0.010-0.014 in). These
clearances should be checked and adjusted periodically as part of
routine maintenance to ensure proper engine performance and prevent
valve train wear.
The powerhead features a compression ratio of 9.5:1, which balances
power output with fuel efficiency and allows operation on regular-grade
fuels. The engine incorporates advanced noise reduction technologies and
a refined induction system for quiet, smooth operation characteristic of
a four-cylinder four-stroke design.
The Yamaha F60FET employs an advanced Electronic Fuel Injection (EFI)
system that precisely meters fuel delivery based on engine operating
conditions, ensuring optimal performance, fuel efficiency, and clean
operation under all circumstances. The EFI system eliminates the need
for carburetor adjustments and provides reliable starting and smooth
acceleration regardless of weather conditions or altitude changes.
The system includes an electric fuel pump that delivers fuel at
controlled pressure to the fuel injectors. A key feature is the Prime
Start enrichment system, which automatically provides the correct fuel
mixture for cold starts without requiring operator intervention. The
engine is compatible with digital network gauges, allowing monitoring of
engine parameters and fuel consumption.
The fuel system includes a vapor separator and pressure regulator to
ensure consistent fuel delivery and prevent vapor lock. Regular
maintenance includes inspecting fuel filters for clogs, dirt, or water
contamination, and checking fuel hoses for leaks or deterioration. The
fuel system is designed for operation on regular unleaded gasoline with
a minimum octane rating of 86.
The Yamaha F60FET features a wet sump lubrication system, where engine
oil is circulated under pressure to lubricate the crankshaft bearings,
connecting rods, camshaft, and valve train components. The recommended
oil is 4-stroke outboard motor oil meeting API service classifications
SE through SL, with Yamalube being the preferred choice for optimal
performance and engine protection.
Acceptable viscosity grades include SAE 10W-30 and 10W-40, allowing
operation across a wide range of ambient temperatures. The engine oil
capacity is 2.1 L (2.2 US qt) when replacing the oil filter, and 1.9 L
(2.0 US qt) without filter replacement.
The lubrication system includes an oil pressure switch that monitors oil
pressure and alerts the operator to potential lubrication problems.
Regular oil changes are essential for engine longevity, and the oil
filter should be replaced with each oil change to maintain proper
filtration. The oil drain plug must be tightened to the specified torque
of 27 Nm (20 lb-ft) during oil changes.
The cooling system is a raw-water, thermostatically controlled design
that draws water from the surrounding environment to regulate engine
temperature. A water pump, driven by the driveshaft, pulls water through
an inlet in the lower unit and circulates it through water jackets
surrounding the cylinders and cylinder head. The thermostat regulates
coolant flow, allowing the engine to reach optimal operating temperature
quickly and maintaining consistent temperatures during operation.
The system includes an overheat warning system that alerts the operator
if cooling water flow is insufficient or if the engine exceeds safe
operating temperatures. The engine features a freshwater flushing
system, allowing easy flushing of the cooling passages with fresh water
after operation in salt, brackish, or polluted water to prevent deposit
buildup and corrosion.
The water pump impeller should be replaced at recommended intervals to
ensure proper cooling system function. The cooling system includes a
pilot water tell-tale that provides a visual indication of water pump
operation and circulation.
| Mid Section and Lower Unit |
The mid section connects the powerhead to the lower unit and houses the
exhaust tube and driveshaft. The lower unit contains the reduction
gearing and propulsion components engineered for efficiency and
durability in the 60-horsepower application. The gear ratio is 1.85:1
(24/13), providing an optimal balance of acceleration and top-end
performance for a variety of boat types.
The reduction gears are of the spiral bevel type, selected for their
strength, smooth operation, and ability to handle the torque produced by
the four-cylinder engine. The clutch mechanism is a dog clutch design
that provides positive engagement for shifting between forward, neutral,
and reverse gears. The propeller shaft utilizes a spline drive system
for secure propeller attachment and efficient power transfer.
The gear housing is filled with hypoid gear oil meeting SAE90
specifications, with a total capacity of 0.43 L (0.45 US qt). Regular
inspection and periodic changing of the gear oil is essential to detect
water ingress or metal particles that may indicate internal wear. The
lower unit incorporates sacrificial anodes to protect against galvanic
corrosion in saltwater environments.
The Yamaha F60FET is equipped with a power trim and tilt system that
allows the operator to adjust the engine angle for optimal performance
and shallow water operation at the touch of a switch. The system
provides a trim angle range of -4 to 20 degrees, allowing fine-tuning of
boat attitude for various loading conditions and water surfaces. The
hydro system offers five trim positions for precise adjustment.
Negative trim angles allow the engine to be trimmed in toward the
transom for improved planing and bow-down attitude, while positive trim
angles provide bow-up attitude for increased top speed and efficiency on
calm water. The maximum tilt-up angle enables shallow water operation
and facilitates beaching, launching, or trailering. The shallow water
drive feature allows operation in reduced water depths by tilting the
engine while maintaining propulsion capability.
The power trim and tilt system includes switches on the remote control
for convenient operation from the helm. An optional tilt limit system is
available to prevent over-tilting in shallow water applications. The
steering system provides 40 degrees of rotation in both directions,
offering excellent maneuverability at low speeds and during docking.
Proper propeller selection is essential for maximizing the performance
and efficiency of the Yamaha F60FET. The engine is designed to operate
within its full throttle RPM range of 5,000 to 6,000, and the propeller
pitch must be selected so that, with a normal boat load, the engine
reaches the upper portion of this range at wide-open throttle. Yamaha
offers a comprehensive range of three-blade aluminum and stainless steel
propellers in various diameters and pitches to accommodate different
boat types and applications.
While specific propeller sizes for the F60FET are not detailed in the
available search results, typical propeller options for 60 horsepower
four-stroke outboards include pitches ranging from 9 to 19 inches
depending on boat type and application. Lower pitch propellers provide
quicker acceleration and better load-carrying capability, making them
suitable for heavier boats, watersports applications, or operations
requiring frequent planing.
Higher pitch propellers deliver increased top speed for lighter, faster
craft. Consultation with a Yamaha dealer is recommended for selecting
the optimal propeller for specific boat and application requirements.
The propeller nut must be tightened to the specified torque of 34 Nm (25
lb-ft) to secure the propeller properly and prevent damage to the thrust
washer or propeller hub.
Overall length: 698 mm (27.5 in)
Overall width: 386 mm (15.2 in)
Overall height (long shaft): 1,435 mm (56.5 in)
Transom height (long shaft): 527 mm (20.7 in)
Weight (long shaft): 113 kg (249 lb)
After first 10 hours or 1 month: Retighten cylinder head bolts, engine
mounting bolts, and flywheel nut to specifications. Change gear oil.
Every 50 hours or 3 months: Inspect and clean spark plugs, measuring
electrode gap of 0.8-0.9 mm (0.031-0.035 in). Check and clean fuel
filter. Inspect fuel lines for cracks or damage. Check gear oil for
water contamination and change if necessary. Check and adjust idle speed
to 700-800 rpm. Lubricate all control linkages and moving parts.
Every 100 hours or 6 months: Check and adjust valve clearances. Clean
and adjust spark plugs or replace if worn. Clean cooling water passages
and inspect thermostat operation. Check condition of sacrificial anodes
on engine and lower unit. Check and adjust ignition timing.
Every 200 hours or 1 year: Replace spark plugs with specified NGK
DPR6EB-9. Replace water pump impeller. Change engine oil and replace oil
filter, tightening oil drain plug to 27 Nm (20 lb-ft) and oil filter to
18 Nm (13.5 lb-ft). Inspect and clean entire fuel system, including
injectors. Replace fuel lines if hardened or cracked. Perform thorough
check of all electrical connections and controls. Change gear oil
regardless of condition.
Spark plug: 17 Nm (12.5 lb-ft)
Propeller nut: 34 Nm (25 lb-ft)
Oil drain plug: 27 Nm (20 lb-ft)
Oil filter: 18 Nm (13.5 lb-ft)
Cylinder head bolts (1st step): 15 Nm (11 lb-ft)
Cylinder head bolts (2nd step): 28 Nm (20 lb-ft)
Engine unit bolt: 21 Nm (15 lb-ft)
Flywheel nut: 110 Nm (80 lb-ft)
Lower unit bolt: 40 Nm (29 lb-ft)
Propeller shaft housing bolt: 16 Nm (11 lb-ft)
Steering friction mounting nut: 20 Nm (14 lb-ft)
The Yamaha F60FET is a versatile outboard engine suitable for a wide
range of boats requiring 60-horsepower propulsion. The remote control
configuration and advanced EFI system make it ideal for center console
fishing boats, bass boats, and multi-species fishing rigs where precise
throttle control and fuel efficiency are valued. Pontoon boats benefit
from the engine's smooth four-cylinder operation and excellent fuel
economy, providing comfortable cruising for families and recreational
boaters.
The engine is well-suited for aluminum and fiberglass fishing boats in
the 16 to 19-foot range, offering the power needed for quick planing and
efficient cruising with excellent range. Commercial users in patrol,
aquaculture, and light utility applications appreciate the engine's
durability and low operating costs. The F60FET is also popular for
sailboat auxiliary power applications due to its reliability and
compatibility with high-output alternators for battery charging.
Real-world applications include use on flats boats, bay boats, and small
center consoles where the lightweight design enhances performance in
shallow water. The engine includes comprehensive safety features
including start-in-gear protection, overheat warning, oil pressure
monitoring, and compatibility with the YCOP immobiliser anti-theft
system. The variable trolling RPM control allows precise speed
adjustment for walleye trolling or slow-speed maneuvering in confined
areas.
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