POWERFUL PERFORMANCE
Yamaha’s variable camshaft timing system advances and
retards the angle of the intake camshaft to dramatically
increase power and throttle response in the low- and
mid-rpm ranges. This gives the engine substantially greater
torque between 2000 ~ 3500 RPM to provide excellent
power to plane.
All air entering the engine block of the F250B is routed
through a single electronically-controlled throttle valve,
to ensure the precise amount of air necessary for optimum
power and fuel effi ciency. The air silencer box reduces
intake noise and air turbulence for smooth, quiet operation.
Individual intake and exhaust camshafts provide more
precise valve timing control and have less moving parts
than conventional push rod systems for increased reliability.
This superior design also allows for use of 4 valves per
cylinder which exchange intake and exhaust gases more
effi ciently for responsive power and increased fuel economy.
Reliable and Responsive
Hole Shot and Mid-Range Punch
Fuel Effi ciency
Six individual compact electronic fuel injectors deliver the
exact amount of fuel needed for optimum performance and
economy. Controlled by the Engine Control Module via input
from an array of on-engine sensors, their location just above
the intake valves enhances fuel atomization, resulting in
more effi cient combustion.
Precise Throttle Control
Reliable and Responsive
F250B
featuring
Command Link
®
Controls and Gauges
F250B
featuring
Command Link
®
Controls and Gauges
