Yamaha F60TLR Specifications
| Engine Model: Yamaha F60TLR |
| Engine Type: 4-stroke inline 4-cylinder OHC 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: Carburetors |
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The Yamaha F60TLR is a 60-horsepower,
four-stroke, inline four-cylinder outboard motor renowned for its smooth
operation, fuel efficiency, and proven reliability. This engine is
designed for boaters who demand quiet performance, excellent
acceleration, and long-term durability for a wide variety of vessels. At
its heart is a 996 cc powerhead featuring a single overhead camshaft
(OHC) and eight valves, delivering strong, responsive power across the
entire rpm range.
The F60TLR utilizes a sophisticated microcomputer CDI ignition system
and Yamaha's Prime Start enrichment for effortless starting in all
conditions. A key feature is its four-carburetor induction system, which
provides crisp throttle response and optimal fuel metering for each
cylinder.
This model, designated F60TLR, features electric start, power trim and
tilt, and is designed for remote control operation with a 20-inch shaft
length, making it a versatile choice for fishing boats, pontoons, and
small cruisers. The engine is compatible with Command Link gauges and
the YCOP immobiliser system for enhanced functionality and security.
Engine type: In-line, 4-stroke, OHC
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)
Power output: 44.1 kW (60 hp) at 5,500 rpm
Full throttle operating range: 5,000-6,000 rpm
Compression ratio: 9.3:1
Fuel system: 4 carburetors
Ignition system: Microcomputer CDI
Ignition timing: 5 ± 3° BTDC to 35 ± 3° BTDC
Starting system: Electric with Prime Start enrichment
Control system: Remote control
Alternator output: 12V, 10A (17A at WOT according to some sources)
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
Fuel rating: 86 octane
Fuel tank capacity: 24.0 L (6.3 US gal) (portable tank)
Engine oil type: 4-stroke motor oil
Engine oil grade: API SE, SF, SG, SH, SAE 10W-30, 10W-40, or 20W-40
Engine oil capacity (with oil filter): 2.5 L (2.6 US qt)
Gear oil type: Hypoid gear oil
Gear oil grade: API GL-4 SAE 90
Gear oil capacity: 0.47 L (0.49 US qt)
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
Propeller identification mark: G
Trim system: Power Trim and Tilt
Shaft length: 508 mm (20.0 in)
Steering angle: 40 degrees each direction
The Yamaha F60TLR is constructed around a precision-engineered 996 cc
inline four-cylinder powerhead. The cylinder block is made from
high-strength aluminum alloy, providing a lightweight yet rigid
foundation for the internal components. The cylinder bore and stroke are
configured at 65.0 mm and 75.0 mm respectively. The cylinder head
features a single overhead camshaft (OHC) operating eight valves via
rocker arms, with two intake and two exhaust valves per cylinder.
The powerhead assembly is designed for smooth operation and long service
life. The closed-deck cylinder block design ensures structural
integrity, while the pistons are made from high-strength aluminum alloy
with refined skirt designs to reduce friction and noise.
The connecting rods are forged for strength to handle the power output
of this engine. The engine incorporates Yamaha's Ultimate Corrosion
Protection system, featuring multiple layers of anti-corrosion coating
and self-sacrificing anodes for exceptional durability in marine
environments.
The SOHC valve train in the F60TLR requires periodic valve clearance
inspection and adjustment to maintain optimal performance and quiet
operation. The intake valve clearance, measured with the engine cold, is
specified at 0.15-0.25 mm (0.006-0.010 in). The exhaust valve clearance,
which operates under higher thermal loads, is set to 0.25-0.35 mm
(0.010-0.014 in).
The camshaft is driven by a timing belt, which must be inspected and
replaced at recommended intervals to prevent catastrophic engine damage.
The valve train components are lubricated by pressurized oil from the
wet sump system. The cylinder head incorporates a precision-machined
sealing surface and requires a new gasket upon any reassembly.
The F60TLR employs a fuel system featuring four individual carburetors,
one dedicated to each cylinder. This design ensures precise fuel
metering and distribution for optimal combustion efficiency and throttle
response. The Prime Start enrichment system automatically adjusts the
fuel mixture for cold starts, eliminating the need for a manual choke.
The fuel system includes a fuel filter that requires periodic inspection
and replacement. The engine operates on regular unleaded gasoline with a
minimum octane rating of 86. The carburetors are synchronized to ensure
equal airflow to each cylinder, and this synchronization must be checked
and adjusted periodically as part of routine maintenance.
The Yamaha F60TLR utilizes a wet sump lubrication system, where engine
oil is stored in an integrated oil pan at the base of the engine. A
trochoidal oil pump, driven by the crankshaft, circulates oil under
pressure throughout the engine, delivering lubricant to the crankshaft
main bearings, connecting rod bearings, camshaft journals, and valve
train components.
The system includes a full-flow oil filter that removes contaminants
from the oil. An oil pressure sensor monitors system pressure and
triggers a warning if pressure drops below a safe level. The recommended
oil is a high-quality 4-stroke motor oil meeting API SE, SF, SG, or SH
specifications, with viscosities of SAE 10W-30, 10W-40, or 20W-40
suitable for most operating conditions.
The engine oil capacity with filter replacement is 2.5 liters (2.6 US
quarts). The oil drain plug is torqued to 27 Nm (20 lb-ft), and the oil
filter to 18 Nm (13.5 lb-ft). Regular oil and filter changes are
essential for engine longevity.
The cooling system is a raw-water, thermostatically controlled design. A
water pump, driven by the driveshaft, draws water from the body of water
through an inlet in the lower unit and circulates it through water
jackets in the cylinder block and cylinder head. The system is regulated
by a thermostat that maintains optimal operating temperature by
controlling water flow.
The F60TLR features a freshwater flushing device, allowing owners to
easily connect a garden hose to flush the cooling system with fresh
water after operation in salt or polluted water, significantly reducing
corrosion risk. The cooling system includes a pilot water outlet that
provides a visual indication of proper water pump operation. An overheat
warning device activates if the engine exceeds safe operating
temperatures, with an automatic rpm reduction feature to protect the
engine.
| Mid Section and Lower Unit |
The mid section houses the driveshaft and exhaust passage, connecting
the powerhead to the lower unit. The lower unit contains the reduction
gearing and propulsion components. The gear ratio is 1.85:1, achieved
with a pinion gear and forward gear set of 24/13 teeth.
The reduction gears are of the spiral bevel type, selected for their
strength and smooth, quiet operation. The clutch mechanism is a dog
clutch, providing positive engagement for shifting. Gear shift positions
are forward, neutral, and reverse.
The propeller shaft is splined to accept a wide range of propeller
options. The lower unit housing is constructed from corrosion-resistant
materials and incorporates sacrificial anodes to protect against
galvanic corrosion. The gear housing is filled with hypoid gear oil
meeting API GL-4 SAE 90 specifications, with a total capacity of 0.47
liters (0.49 US quarts). Regular inspection and periodic changing of the
gear oil are necessary to detect water ingress or wear particles.
The Yamaha F60TLR is equipped with a power trim and tilt system,
allowing effortless adjustment of the engine angle relative to the boat
transom. The system uses an electro-hydraulic pump and dual hydraulic
cylinders to raise and lower the engine. The trim angle range extends
from -4 degrees (trimmed fully in, forcing the bow down for planing) to
+20 degrees (trimmed out for optimal running attitude).
The system also provides a tilt-up angle sufficient for beaching,
launching, trailering, or shallow water operation. An external tilt
switch is provided for convenient operation from outside the boat. The
power trim and tilt system is controlled by rocker switches on the
remote control. The system should be checked for smooth operation and
abnormal noise during routine maintenance.
Selecting the correct propeller is essential for optimizing the
performance of the Yamaha F60TLR. The engine is designed to operate
within its full throttle rpm range of 5,000-6,000 rpm, and the propeller
pitch must be chosen so that, with a normal boat load, the engine
reaches the upper half of this range at full throttle. Yamaha offers a
comprehensive range of genuine propellers for the F60TLR, all bearing
the "G" propeller identification mark.
Aluminum propeller options include: 10-3/4 x 16 - G, 10-3/4 x 17 - G,
and 11-1/4 x 14 - G. Stainless steel propeller options provide enhanced
durability and performance and include: 10-1/4 x 15 - G, 10-1/4 x 16 -
G, 11-1/4 x 14 - G, 11-1/2 x 13 - G, 11-3/4 x 12 - G, and 12 x 11 - G.
The propeller nut must be tightened to the specified torque of 34 Nm (25
lb-ft). Propeller selection guides are available to assist in choosing
the appropriate pitch based on boat type, weight, and intended use.
Overall length: 706 mm (27.8 in)
Overall width: 384 mm (15.1 in)
Overall height (long shaft): 1,415 mm (55.7 in)
Transom height (long shaft): 527 mm (20.7 in)
Weight (long shaft): 108 kg (238 lb)
After first 10 hours or 1 month: Change engine oil and oil filter.
Inspect gear oil for water contamination. Check and retighten all bolts
and nuts. Every 50 hours or 3 months: Inspect and clean spark plugs.
Check and clean fuel filter. Inspect fuel lines and connections for
cracks or damage. Check gear oil level and condition. Lubricate all
control linkages and moving parts.
Every 100 hours or 6 months: Change engine oil and oil filter. Replace
spark plugs. Inspect and clean cooling water passages. Check condition
of sacrificial anodes, replacing if significantly eroded. Check valve
clearance and adjust as necessary.
Every 200 hours or 1 year: Replace water pump impeller. Inspect and
clean entire fuel system, including carburetors. Replace fuel lines if
hardened or cracked. Check and adjust ignition timing and carburetor
synchronization. Perform a thorough check of all electrical connections
and controls. Change gear oil. Every 300 hours or 3 years: Replace
timing belt. Inspect and repack or replace steering cable and tilt tube
bushings.
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)
The Yamaha F60TLR is a versatile and popular power choice for a wide
range of boat types. Its 60-horsepower output, combined with its refined
four-stroke design, makes it an ideal engine for aluminum fishing boats,
including jon boats, tiller models, and center consoles. Real-world
applications include twin installations on catamaran center console
boats like the Twin Vee 22 for bay fishing and family cruising. Pontoon
boats and small deck boats benefit from the engine's smooth power
delivery and quiet operation.
The F60TLR is also well-suited for small to medium rigid-hull inflatable
boats (RIBs) used for recreational boating, diving, and watersports.
Skiffs, bay boats, and light utility craft such as the G3 1756 DLX jon
boat rely on this engine's durability and performance for fishing and
utility applications. The engine's exceptional corrosion resistance and
freshwater flushing capability make it particularly well-suited for
saltwater applications. The 20-inch shaft length accommodates a wide
variety of transom heights in this class.
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