yamaha f60c and f70a - Yamaha Motor Australia

GO THE DISTANCE
YAMAHA F60C AND F70A
YAMAHA F60C AND F70A
Yamaha F70A
F70A Introduction and Specifications
Page 4
F70A Key Features
Page 5
F70A SeaJay 4.85 Haven Sports Test Data
Page 6
F70A CruiseCraft 4.85 Explorer Test Data
Page 7
Yamaha F60C
2
F60C Introduction and Specifications
Page 8
F60C Key Features
Page 9
F60C Allison 4.7 Amazon Open Test Data
Page 10
F60C Streaker 4.85 Fisherman Test Data
Page 11
GO THE DISTANCE
Yamaha’s range of mid sized four stroke outboard engines have created a big reputation in Australia
for their exceptional quality and versatility. With big steps forward in this category over the last ten
years, including the introduction of electronic fuel injection to the F60C and the launch of Yamaha’s
flagship F70A, owning a modern four stroke outboard offers customers some real advantages in terms
of performance, economy and reliability. This document has been created to highlight some of these
advantages.
Both the F60C and F70A feature a four cylinder design providing extremely smooth and quiet operation.
Matched with Yamaha electronic fuel injection system these engines are also highly fuel efficient.
With the weight of the four stroke F60C and F70A being similar to their carburettor fed two-stoke
equivalents, more and more customers are making the change from their trusty old two stoke to the more
advanced and refined four stroke option. Repowers of this type completely change the characteristics of
older boats, reinvigorating an old hull into something that feels completely new.
In terms of new boat packages, the over all performance delivered by the F60C and F70A paired with
a modern hull is second to none. The range of boats brands and models available through Yamaha’s
nation wide network of authorised dealerships that can be matched with these mid size engines is too
numerous to mention.
All testing published in this document has been completed accurately by trained Yamaha technicians and
can be reconstructed with confidence on these boats under similar conditions.
We hope you find the information in this brochure informative and interesting.
3
Yamaha F70A
Yamaha’s F70A has raised the bar in the 70hp
category. Its introduction to the Australian market
was met with much excitement and anticipation.
Some people incorrectly assume this motor is
just a tuned up F60C. This couldn’t be further
from the truth. Although the two motors share the
same capacity that is where the similarities finish.
The F70A incorporates a completely redesigned
powerhead utlising a four valve per cylinder, four
cylinder design. This increases the intake area by
17% compared to the F60C and results in greater
volumetric efficiency for outstanding acceleration
and impressive top speeds.
The F70A uses a single overhead camshaft rather
than the conventional dual camshaft design for
16 valve engines. This award winning innovation
reduces the weight that would result from having
an extra camshaft and the components that go
with it. It’s this feature, as well as a range of other
weight savings throughout the design that make
the F70A the lightest engine in its class, in fact it’s
35Kg lighter than it’s nearest four-stroke competitor
and 21Kg lighter than its nearest direct injected two
stoke competitor.
A higher gear ratio has been utilised on this motor
allowing the F70A to spin a larger propeller, getting
more power to the water for more grunt. The F70A
uses Yamaha’s “K” series of propellers, giving
customers a wide selection of pitch and diameter
variants to ensure the right prop is available for
every application.
“It’s been said that Yamaha’s new 70hp
four-stroke F70A is the most significant new
outboard so far this century, and after testing
several boats powered by one, I’m inclined to
agree.”
Warren Steptoe, Freelance Marine Journalist.
4 YAMAHA F70A power report
ENGINE
Engine Type 4-Stroke, 16 Valve
SOHC In-line 4 Cylinder
Displacement 996 cc
Bore x Stroke 65 x 75 mm
Recommended Max RPM 5300 - 6300
Lubrication System Wet sump
Fuel Management EFI
Ignition TCI
Starter System Electric
Alternator Output 16A with rectifier
regulator
Operation Method Remote Control
or Tiller Handle
Trim & Tilt Method Power Trim & Tilt
Gear Ratio 2.33:1
OEDA Emission Rating 3 Star Ultra
Low Emission
DIMENSIONS
Height F70AETL : 534 mm (21 in)
F70AETX : 648 mm (25.5 in)
Weight F70AETL : 120 Kg
F70A
Key Features
Horsepower Per Litre
An advanced powerhead design features a single overhead camshaft (SOHC), yet with four valves per cylinder, for
maximum power and efficiency. Total intake valve area is increased 17%, while the pistons and valves are up to 10%
lighter (when compared to our F60 model), giving it substantially more horsepower-per-litre of engine displacement
than competitive outboards, both four-stroke and two-stroke direct-injected. *Of engine displacement, rounded to nearest litre and horsepower
Four-stroke: Horsepower per litre comparison
Yamaha F70A
Nearest Competitor
70
47
D.I. Two-stroke: Horsepower per litre comparison
Yamaha F70A
70
Nearest Competitor
58
Lightest Weight in Class
From the specially designed engine block to the two-piece upper case, every gram of weight-savings has been
realised for maximum performance without sacrificing durability. Yamaha’s new F70A is not only the lightest fourstroke 70 horsepower outboard, it’s even lighter than competitive two-stroke direct-injected outboards. **Published weight
Four-stroke: Weight comparison
Yamaha F70A
120Kg
Nearest Competitor
155Kg
D.I. Two-stroke: Weight comparison
Yamaha F70A
120Kg
Nearest Competitor
145Kg
Precise Throttle Control
All air entering the engine block of Yamaha’s new F70A four-stroke
is routed through a single throttle valve, to ensure the precise
amount of air necessary for optimum power and fuel efficiency.
It then enters each cylinder through individual long intake tracks,
which are ‘pulse tuned’ to provide air at the precise volume and
timing for maximum density and power.
Air
Hole shot acceleration
F70A provides outstanding hole shot and acceleration thanks in
part to an advanced sensor that allows maximum safe ignition
timing matched with a high ratio 2.33:1 gearcase, with specially
hardened pinion, forward, and reverse gears for increased durability.
YAMAHA F70A power report 5
SeaJay 4.85 Haven Sports
Performance Data
RPM AVE Km/h Ave L/h Ave Km/L
700
4.05
0.75
5.40
1000
6.10
1.35
4.52
1500
8.25
2.20
3.75
2000
10.20
3.95
2.58
2500
12.90
5.55
2.32
3000
20.35
7.00
2.91
350029.70 8.15 3.64
4000
35.10
9.70
3.62
4500
40.85
12.50
3.27
5000
46.40
14.75
3.15
5500
52.40
19.65
2.67
6000
57.25
22.70
2.52
6300
60.95
24.00
2.54
6.00
70.00
60.00
5.00
50.00
40.00
3.00
30.00
KM/L
KM/H & L/H
4.00
2.00
20.00
1.00
10.00
0.00
0.00
300
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6300
RPM
Ave KM/H
Ave L/H
Ave KM/L
Test Performed by certified Yamaha Technicians 23.03.10
Data may vary due to changes in weather, tides, boat load, hull & propeller conditions,
temperature, atmospheric pressure and wind direction. Fuel data gathered with a non-calibrated
Yamaha fuel gauge. Speed data recorded with GPS receiver. All test data is recorded with the
engine fully trimmed in (-4), until 5500 RPM, where possible.
6 YAMAHA F70A power report
SEA JAY 4.85 HAVEN SPORTS
Length4.85m
Beam2.15m
Dry Weight
501Kg
Max Horsepower 80hp
Fuel Capacity
60L
Weight as Tested 872Kg (approx)
YAMAHA F70AETL
Horsepower
51.5 kW (70 ps) @ 5800 rpm
Engine Type
16-Valve SOHC In-Line 4 cyl
Weight (Inc. Prop) 120Kg
Gear Ratio
2.33 (28/12)
Mounting Height 3rd Hole
PROPELLER
Series
Diameter/ Pitch
Part Number
White K Series Alloy (6E5)
13 1/2” x 15”
6E5-45947-00
TEST CONDITIONS
Crew2
Air Temperature 29.2 C
Wind Speed
<10 Knots
Fuel60L
Water Temperature 26.5 C
TEST PERFORMANCE SUMMARY
Max Ave Speed
60.95 Km/h or 32.85 Knots
Best Cruising Km/L3.64 Km/L @ 3500rpm
Range, Based on 95%
Fuel Capacity at Best Km/L 208 Km
F70A
CruiseCraft 4.85 Explorer
60.00
6.00
50.00
5.00
40.00
4.00
30.00
3.00
20.00
2.00
10.00
1.00
0.00
KM/L
KM/H & L/H
Performance Data
RPM AVE Km/h Ave L/h Ave Km/L
700
4.15
0.75
5.53
1000
5.90
1.25
4.72
1500
7.85
2.20
3.57
2000
10.00
3.35
2.99
2500
11.10
4.80
2.31
3000
13.80
7.05
1.96
3500
20.90
8.85
2.36
4000
29.55
9.75
3.03
450036.95 11.55 3.20
5000
40.80
14.20
2.87
5500
46.30
8.55
2.50
6000
50.80
21.90
2.32
6300
54.45
23.60
2.31
0.00
700
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6300
RPM
Ave KM/H
Ave L/H
Ave KM/L
Test Performed by certified Yamaha Technicians 23.03.10
CRUISECRAFT 4.85 EXPLORER
Length 4.85m
Beam 2.02m
Dry Weight 631Kg
Max Horsepower 90hp
Fuel Capacity
60L
Weight as Tested 1.012Kg (approx)
YAMAHA F70AETL
Horsepower
51.5 kW (70 ps) @ 5800 rpm
Engine Type
16-Valve SOHC In-Line 4 cyl
Weight (Inc. Prop) 120Kg
Gear Ratio
2.33 (28/12)
Mounting Height 3RD Hole
PROPELLER
Series Diameter/ Pitch Part Number
White K Series Alloy (6E5)
13 5/8” x 14”
6E5-45958-00-EL
TEST CONDITIONS
Crew 2
Air Temperature 29.2 C
Wind Speed
<10 Knots
Fuel60L
Water Temperature 26.5 C
TEST PERFORMANCE SUMMARY
Max Ave Speed
54.45 Km/h or 29.35 Knots
Best Cruising Km/L3.20 Km/L @ 4500rpm
Range, Based on 95%
Fuel Capacity at Best Km/L 182 Km
Data may vary due to changes in weather, tides, boat load, hull & propeller conditions,
temperature, atmospheric pressure and wind direction. Fuel data gathered with a non-calibrated
Yamaha fuel gauge. Speed data recorded with GPS receiver. All test data is recorded with the
engine fully trimmed in (-4), until 5500 RPM, where possible.
YAMAHA F70A power report 7
Yamaha F60C
The introduction of Yamaha’s F60C was a major step
forward for four-stroke design. It set a new benchmark
in terms of light weight and fuel efficiency. The
F60C remains one of most reliable, economical and
popular engines on the market today.
Yamaha’s F60C makes use of an advanced
microprocessor ECM (Engine Control Module) to
control Yamaha’s exclusive multi point fuel injection
system. By utilising an array of sensors around
the engine, the ECM ensures the delivery of the
perfect fuel and air mixture for optimum power and
performance in all conditions.
Its light weight, four cylinder design really sets the
F60C apart from the competition. The F60C’s inline
four cylinder configuration gives the engine a feeling
of incredible balance and provides silky smooth
operation. And at just 113Kg, the F60C balances
beautifully on new hulls as well as older boats where
two-stroke outboards were once the power option
of preference.
With turn key starting hot or cold, whisper quiet
operation and low emissions, the F60C is a joy
to use out on the water. Match this with great
performance and stunning fuel efficiency and it is
easy to see why this engine so quickly became, and
has remained a favourite in the Australian market.
“People who’ve not yet had the benefit of a
four-stroke experience find it hard to believe
you can get an outboard (or any engine, for
that matter) as quiet as this Yamaha F60C.
But there’s a lot more to this engine than just
its quietness on the transom – it’s virtually
vibration free, it has no smoke at all, and being
equipped with a traditional four-stroke ‘sump’
does not use outboard oil.”
Peter Webster, Editor of Australian Fisherman and Boatowner
8 YAMAHA F60C power report
ENGINE
Engine Type 4-Stroke, SOHC In-line 4
Displacement 996 cc
Bore x Stroke 65 x 75 mm
Recommended Max RPM 5000-6000
Lubrication System Wet-sump
Fuel Management EFI
Ignition TCI
Starter System Electric
Alternator Output 16A with rectifier
regulator
Operation Method Tiller handle (EHT),
Remote control (ET)
Trim & Tilt Method Power trim & tilt
Gear Ratio 1.85 : 1
OEDA Emission Rating 3 Star Ultra
Low Emission
DIMENSIONS
Height F60CETL:
F60CEHTL:
Weight F60CETL:
F60CEHTL:
527 mm (20.7 in
527 mm (20.7 in)
113 Kg
118 Kg
F60C
Key Features
Multi Point Fuel Injection System
Delivers a precise fuel and air mixture into each
combustion chamber for easy starting, smooth running
and excellent performance in all conditions.
Single Over Head Cam, In-line Four Cylinder
Yamaha’s lightweight, four cylinder design provides
smooth, vibration free operation as well as impressive
power and torque.
Labyrinth Exhaust System
Reduces engine noise at low RPM and idle. A water sealed
outer wall around the exhaust muffler effectively reduces
exhaust tone for whisper quiet operation.
Exhaust Pipe
Exhaust
YAMAHA F60C power report 9
Allison 4.7 Amazon Open
Performance Data
RPM AVE Km/h
600
4.10
1000
4.60
1500
7.55
2000
9.50
2500
11.55
3000
18.10
3500
31.60
4000
37.55
4500
43.15
5000
48.75
5500
53.75
6000
58.80
6100
59.70
Ave L/h
1.20
1.65
2.50
3.85
5.30
7.50
7.30
9.65
12.35
14.55
19.80
21.50
21.90
Ave Km/L
3.42
2.79
3.02
2.47
2.18
2.41
4.33
3.89
3.49
3.35
2.71
2.73
2.73
5.00
70.00
4.50
60.00
4.00
3.50
3.00
40.00
2.50
30.00
2.00
KM/L
KM/H & L/H
50.00
1.50
20.00
1.00
10.00
0.50
0.00
0.00
600
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6100
RPM
Ave KM/H
Ave L/H
Ave KM/L
Test Performed by certified Yamaha Technicians 13.11.09
Data may vary due to changes in weather, tides, boat load, hull & propeller conditions,
temperature, atmospheric pressure and wind direction. Fuel data gathered with a non-calibrated
Yamaha fuel gauge. Speed data recorded with GPS receiver. All test data is recorded with the
engine fully trimmed in (-4), until 5500 RPM, where possible.
10 YAMAHA F60C power report
ALLISON 4.7 AMAZON OPEN
Length 4.70m
Beam 2.20m
Dry Weight 292Kg
Max Horsepower 70hp
Fuel Capacity 23L
Weight as Tested 639Kg (approx)
YAMAHA F60CETL
Horsepower
44.1 kW (60ps) @ 5500rpm
Engine Type
SOHC In-Line 4 Cyl 4-Stroke
Weight
118 Kg
Gear Ratio 1.85 (24/13)
Mounting Height Top Hole
PROPELLER
Series
Diameter/ Pitch
Part Number
White G Series Alloy
11 1/8” x 13”
69W-45945-00
TEST CONDITIONS
Crew2
Air Temperature
26.0 C
Wind Speed
<5 Knots
Fuel23L
Water Temperature 23.3 C
TEST PERFORMANCE SUMMARY
Max Ave Speed
59.70 Km/h or 32.18 Knots
Best Cruising Km/L 4.33 Km/L @ 3500rpm
Range, Based on 95%
Fuel Capacity at Best Km/L 95 Km
F60C
Streaker 4.85 Fisherman
Performance Data
RPM AVE Km/h Ave L/h Ave Km/L
1000
6.00
1.60
3.75
1500
8.00
2.70
2.96
2000
9.00
3.90
2.31
2500
11.00
5.50
2.00
3000
15.00
8.30
1.81
3500
27.00
8.30
3.25
400037.00 9.70 3.81
4500
42.00
12.60
3.33
5000
48.00
16.60
2.89
5500
54.00
21.20
2.55
5900 WOT
59.00
22.30
2.65
70.00
4.50
4.00
60.00
3.00
40.00
2.50
30.00
2.00
KM/L
KM/H & L/H
3.50
50.00
1.50
20.00
1.00
10.00
0.50
0.00
0.00
600
1000
1500
2000
2500
3000
3500
4000
RPM
KM/H
L/H
4500
5000
5500
5900
WOT
KM/L
Test Performed by certified Yamaha Technicians 05.06.08
STREAKER 4.85M FISHERMAN
Length 4.85m
Beam 2.11m
Dry Weight 850Kg
Max Horsepower 80hp
Fuel Capacity 60L
Weight as Tested 1,000Kg (approx)
YAMAHA F60CETL
Horsepower
44.1 kW (60ps) @ 5500rpm
Engine Type
SOHC In-Line 4 Cyl 4-Stroke
Weight (Inc. Prop) 113Kg
Gear Ratio
1.85 (24/13)
Mounting Height 3rd Hole
PROPELLER
Series
Diameter/ Pitch
Part Number
White G Series Alloy
11”1/8 x 13”
69W-45945-00-EL
TEST CONDITIONS
Crew2
Air Temperature
20.8 C
Wind Speed
<5 Knots
Fuel60L
Water Temperature 15.8 C
TEST PERFORMANCE SUMMARY
Max Ave Speed
59 Km/h or 31.86 Knots
Best Cruising Km/L 3.81 L/h @ 4000rpm
Range, Based on 95%
Fuel Capacity at Best Km/L 217 Km
Data may vary due to changes in weather, tides, boat load, hull & propeller conditions,
temperature, atmospheric pressure and wind direction. Fuel data gathered with a non-calibrated
Yamaha fuel gauge. Speed data recorded with GPS receiver. All test data is recorded with the
engine fully trimmed in (-4), until 5500 RPM, where possible.
YAMAHA F60C power report 11
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