Yamaha 2 Stroke Outboard Engines

200A

The two stroke outboards are lightweight and compact yet deliver high power output. The engine structure is relatively simple and maintenance is exceedingly easy.
Specifications:
Performance:
Max. prop shaft output 110.3 kW (150 ps)
Full throttle operating range 4500 - 5500 r/min
Idling speed 675 - 725 r/min
Max fuel consumption 72.0 L/h @5500 r/min
Engine:
Engine type 90 deg. V6
Displacement 2596 cm3
Bore X stroke 90.0× 68.0 mm
Compression ration 5.9 :1
Starting enrichment Manual choke
Fuel induction system 3 dual throat carburetors
Alternator 14 A
Bracket /Drive:
Gear ratio 1.86 (26/14)
Propeller rotation Counter clockwise Clockwise
Shaft length L, X
Engine transom height L: 516 mm (20.3 in), X: 642 mm (25.3 in)

85A

The two stroke outboards are lightweight and compact yet deliver high power output. The engine structure is relatively simple and maintenance is exceedingly easy.
Specifications:
Performance:
Max. prop shaft output 62.5 kW (85 ps)
Full throttle operating
range
4500 - 5500 r/min
Idling speed 750 - 850 r/min
Max fuel consumption 35.0 L/h @5500 r/min
Engine:
Engine type In-line 3
Displacement 1140 cm3
Bore X stroke 82.0× 72.0 mm
Compression ration 5.1 :1
Starting enrichment Manual choke
Fuel induction system 3 carburetors
Alternator 10 A
Bracket /Drive:
Gear ratio 2.00 (26/13)
Propeller rotation Clockwise
Shaft length ET, ED: L, X / EHD: L, Y
Engine transom height L: 521 mm (20.5 in), Y: 572 mm (22.5 in),
X: 647 mm (25.5 in)

70B

The two stroke outboards are lightweight and compact yet deliver high power output. The engine structure is relatively simple and maintenance is exceedingly easy.
Specifications:

Performance:
Max. prop shaft output 51.5 kW (70 ps)
Full throttle operating
range
5000 - 6000 r/min
Idling speed 750 - 850 r/min
Max fuel consumption 26.0 L/h @5500 r/min
Engine:
Engine type In-line 3
Displacement 849 cm3
Bore X stroke 72.0× 69.5 mm
Compression ration 6.1 :1
Starting enrichment Prime start
Fuel induction system 3 carburetors
Alternator 6 A
Bracket /Drive:
Gear ratio 2.33 (28/12)
Propeller rotation Clockwise
Shaft length L
Engine transom height L : 521 mm (20.5 in)

60F

The two stroke outboards are lightweight and compact yet deliver high power output. The engine structure is relatively simple and maintenance is exceedingly easy.
Specifications:
Performance:
Max. prop shaft output 51.5 kW (70 ps)
Full throttle operating
range
5000 - 6000 r/min
Idling speed 750 - 850 r/min
Max fuel consumption 23.0 L/h @5500 r/min
Engine:
Engine type In-line 3
Displacement 849 cm3
Bore X stroke 72.0× 69.5 mm
Compression ration 6.1 :1
Starting enrichment Prime start
Fuel induction system 3 carburetors
Alternator 6 A
Bracket /Drive:
Gear ratio 2.33 (28/12)
Propeller rotation Clockwise
Shaft length L
Engine transom height L : 521 mm (20.5 in)

40X

The two stroke outboards are lightweight and compact yet deliver high power output. The engine structure is relatively simple and maintenance is exceedingly easy.
Specifications:
Performance:
Max. prop shaft output 29.4 kW (40 ps)
Full throttle operating
range
4500 - 5500 r/min
Idling speed 950 - 1050 r/min
Max fuel consumption 20.0 L/h @5500 r/min
Engine:
Engine type In-line 2
Displacement 703 cm3
Bore X stroke 80.0× 70.0 mm
Compression ration 6.0 :1
Starting enrichment Manual choke
Fuel induction system 1 carburetor
Alternator MH: 80 W (optional) W, WT: 6 A
Bracket /Drive:
Gear ratio 2.00 (26/13)
Propeller rotation Clockwise
Shaft length MH, W: S, L / WT: L
Engine transom height S: 424 mm (16.7 in), L: 550 mm (21.7 in)

30H

Built around a proven two cylinder two stroke design, Yamaha's 30H delivers plenty of power while still offering the features and engineering excellence that comes from over 50 years of Yamaha outboard research.
Specifications:
Performance:
Max. prop shaft output 22.1 kW (30 ps)
Full throttle operating
range
4500 - 5500 r/min
Idling speed 1050 - 1150 r/min
Max fuel consumption 12.0 L/h @5500 r/min
Engine:
Engine type In-line 2
Displacement 496 cm3
Bore X stroke 72.0× 61.0 mm
Compression ration 7.0 :1
Starting enrichment Manual choke
Fuel induction system 1 carburetor
Alternator 80 W (W, WH: 6 A)
Bracket /Drive:
Gear ratio 2.08 (27/13)
Propeller rotation Clockwise
Shaft length MH: S, L / W, WH: L
Engine transom height S : 423 mm (16.7 in), L : 550 mm (21.7in), 

X : 636 mm (25.0 in)

25B

Superior design and engineering allows these engines to run a 100:1 pre mix oil ratio for crisp response, less smoke and odor, and smooth operation.
Specifications:
Performance:
Max. prop shaft output 18.4 kW (25 ps)
Full throttle operating
range
4500 - 5500 r/min
Idling speed 1050 - 1150 r/min
Max fuel consumption 11.0 L/h @5500 r/min
Engine:
Engine type In-line 2
Displacement 496 cm3
Bore X stroke 72.0× 61.0 mm
Compression ration 6.2 :1
Starting enrichment Manual choke
Fuel induction system 1 carburetor
Alternator 80 W (W: 6 A)
Bracket /Drive:
Gear ratio 2.08 (27/13)
Propeller rotation Clockwise
Shaft length MH: S, L, X / W: L
Engine transom height S : 423 mm (16.7 in), L : 550 mm (21.7in),
X : 636 mm (25.0 in)

15F

With a reputation built on years of reliable and powerful performance, Yamaha's two stroke 15F is a standout engine in the Yamaha line up.
Specifications:
Performance:
Max. prop shaft output 11.0 kW (15 ps)
Full throttle operating
range
4500 - 5500 r/min
Idling speed 700 - 800 r/min
Max fuel consumption 7.3 L/h @5500 r/min
Engine:
Engine type In-line 2
Displacement 246 cm3
Bore X stroke 56.0× 50.0 mm
Compression ration 6.8 :1
Starting enrichment Manual choke
Fuel induction system 1 carburetor
Alternator 80 W (EUR, RUS: 6 A)
Bracket /Drive:
Gear ratio 2.08 (27/13)
Propeller rotation Clockwise
Shaft length S, L
Engine transom height S : 440 mm (17.3 in), L : 567 mm (22.3 in)

4C

Built lightweight and compact Yamaha's 4C two stroke has been designed so you can take it absolutely anywhere. The convenience of a built in fuel tank makes fitting the engine a breeze.
Specifications:
Performance:
Max. prop shaft output 2.9 kW (4 ps)
Full throttle operating
range
4500 - 5500 r/min
Idling speed 1100 - 1200 r/min
Max fuel consumption 2.8 L/h @5500 r/min
Engine:
Engine type 1-cylinder
Displacement 103 cm3
Bore X stroke 54.0× 45.0 mm
Compression ration 6.5 :1
Starting enrichment Manual choke
Fuel induction system 1 carburetor
Alternator 60 W (optional)
Bracket /Drive:
Gear ratio 2.08 (27/13)
Propeller rotation Clockwise
Shaft length S, L (4D: S)