YAMAHA F60C AND F70A - Yamaha Motor Australia · PDF fileYAMAHA F60C AND F70A. 3 Yamaha’s range of mid sized four stroke outboard engines have created a big reputation in Australia

YAMAHA F60C AND F70A

GO THE DISTANCE

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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

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

YAMAHA F60C AND F70A

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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.

GO THE DISTANCE

4 YAMAHA F70A power report

Yamaha F70AYamaha’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.

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

YAMAHA F70A power report 5

Horsepower Per LitreAn 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

Yamaha F70A 70

Nearest Competitor 47

Four-stroke: Horsepower per litre comparison

Yamaha F70A 70

Nearest Competitor 58

D.I. Two-stroke: Horsepower per litre comparison

Lightest Weight in ClassFrom 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 four-stroke 70 horsepower outboard, it’s even lighter than competitive two-stroke direct-injected outboards. **Published weight

Yamaha F70A 120Kg

Nearest Competitor 155Kg

Four-stroke: Weight comparison

Yamaha F70A 120Kg

Nearest Competitor 145Kg

D.I. Two-stroke: Weight comparison

Key Features

F70A

Precise Throttle ControlAll 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.

Hole shot accelerationF70A 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.

Air

6 YAMAHA F70A power report

SeaJay 4.85 Haven Sports

SEA JAY 4.85 HAVEN SPORTS

Length 4.85m

Beam 2.15m

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 White K Series Alloy (6E5)

Diameter/ Pitch 13 1/2” x 15”

Part Number 6E5-45947-00

TEST CONDITIONS

Crew 2

Air Temperature 29.2 C

Wind Speed <10 Knots

Fuel 60L

Water Temperature 26.5 C

TEST PERFORMANCE SUMMARY

Max Ave Speed 60.95 Km/h or 32.85 Knots

Best Cruising Km/L 3.64 Km/L @ 3500rpm

Range, Based on 95% Fuel Capacity at Best Km/L 208 Km

Ave KM/H Ave L/H Ave KM/L

Test Performed by certified Yamaha Technicians 23.03.10

RPM

KM

/H &

L/H

KM

/L

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

0.00

1.00

2.00

3.00

4.00

5.00

6.00

300 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6300

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.

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

3500 29.70 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

YAMAHA F70A power report 7

CruiseCraft 4.85 explorer

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


Gear Ratio 2.33 (28/12)

Mounting Height 3RD Hole

PROPELLER

Series White K Series Alloy (6E5)


Part Number 6E5-45958-00-EL

TEST CONDITIONS

Crew 2


Wind Speed <10 Knots

Fuel 60L






F70A



RPM

KM

/H &

L/H

KM

/L

0.00

60.00

0.00

30.00

5.00

1.00

2.00

3.00

4.00

6.00

10.00

20.00

40.00

50.00

700 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6300


PERFORMANCE DATA


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

4500 36.95 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

8 YAMAHA F60C power report

Yamaha F60CThe 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

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: 527 mm (20.7 in F60CEHTL: 527 mm (20.7 in)

Weight F60CETL: 113 Kg F60CEHTL: 118 Kg

YAMAHA F60C power report 9

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.

Key Features

F60C

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

Exhaust Pipe

10 YAMAHA F60C power report

Allison 4.7 Amazon open

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 White G Series Alloy


Part Number 69W-45945-00

TEST CONDITIONS

Crew 2


Wind Speed <5 Knots

Fuel 23L








RPM

KM

/H &

L/H

KM

/L

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

4.50

5.00

600 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6100


PERFORMANCE DATA


600 4.10 1.20 3.42

1000 4.60 1.65 2.79

1500 7.55 2.50 3.02

2000 9.50 3.85 2.47

2500 11.55 5.30 2.18

3000 18.10 7.50 2.41

3500 31.60 7.30 4.33

4000 37.55 9.65 3.89

4500 43.15 12.35 3.49

5000 48.75 14.55 3.35

5500 53.75 19.80 2.71

6000 58.80 21.50 2.73

6100 59.70 21.90 2.73

YAMAHA F60C power report 11

Streaker 4.85 Fisherman

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


Gear Ratio 1.85 (24/13)

Mounting Height 3rd Hole

PROPELLER

Series White G Series Alloy

Diameter/ Pitch 11”1/8 x 13”

Part Number 69W-45945-00-EL

TEST CONDITIONS

Crew 2


Wind Speed <5 Knots

Fuel 60L



Max Ave Speed 59 Km/h or 31.86 Knots

Best Cruising Km/L 3.81 L/h @ 4000rpm


F60C

KM/H L/H KM/L


RPM

KM

/H &

L/H

KM

/L

0.00

70.00

0.00

30.00

0.50

1.00

2.00

2.50

3.00

3.50

4.00

4.50

10.00

20.00

40.00

50.00

600 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 5900

1.50

60.00

WOT


PERFORMANCE DATA


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

4000 37.00 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

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Documents

YAMAHA F60C AND F70A - Yamaha Motor Australia · PDF fileYAMAHA F60C AND F70A. 3 Yamaha’s range of mid sized four stroke outboard engines have created a big reputation in Australia