Yamaha 25D Manuale Utente Scaricare il pdf (Pagina 23)

Compact and Lightweight From the

top of the cowling to the tip of the prop,

our in-line fours are designed to provide

versatile, high-performance power in a

compact design.

3 Minimized Vibration Twin counter

balancer shafts minimize engine vibration

for a smooth ride.

4 Convenience/Control Command

Link

compatible, digital gauges

pack more data into fewer gauges and

customizable displays give you instant

access to data on boating conditions

and your system’s information.

(See pages 36-37.)

1 Power/Reliability The 16-valve

double overhead cam maximizes power

by using four valves per cylinder and

increases reliability by eliminating rocker

arms and their adjustments.

2 Performance Multi-Point Precision

Electronic Fuel Injection is controlled

by the Engine Control Module, which

continually adjusts the fuel/air mix

to match engine load and speed.

Acceleration A 10mm offset crankshaft

helps provide greater intake volume, and

four tuned intake tracks increase low-

and mid-range torque, boosting

acceleration.

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Yamaha 25D Manuale Utente Pagina 23