Yamaha WaveRunner FX SHO Service Manual

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High intake air pressure control
The high intake air pressure control is activated under the following conditions.
• If the engine speed exceeds 7,550 r/min.
• If the intake air pressure exceeds 145 kPa.
• If the above conditions are maintained for 1.5 seconds.
Meter & buzzer: No indication or buzzer sounds.
ECM: The throttle valve is closed until the above conditions are no longer present.
The throttle valve doesn't open until the high intake air pressure control is canceled.
Cancel: The throttle lever is released to the fully closed position.
Knock control
The knock control system retards the ignition timing to prevent the occurrence of engine knock.
The knock control is activated under the following conditions.
• If the engine speed is higher than 2,000 r/min after warming up the engine.
• If the knock sensor detects the engine knock.
Technical tips

Yamaha WaveRunner FX SHO Specifications

General

Manufacturer	Yamaha
Model	WaveRunner FX SHO
Category	Personal Watercraft
Engine Type	4-cylinder, 4-stroke, Supercharged
Displacement	1812cc
Bore x Stroke	86mm x 78mm
Fuel Delivery	Electronic Fuel Injection
Horsepower	210 HP
Starter System	Electric
Lubrication System	Wet sump
Length	132.7 in (3.37 m)
Fuel Capacity	18.5 gal (70 L)
Oil Capacity	5.3 qt (5.0 L)
Rider Capacity	3 persons
Cooling System	Water-cooled
Width	1.23 m
Dry Weight	377 kg