Yamaha WaveRunner FX SHO Service Manual page 414

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4. Stationary test: Operation tests can be performed with the engine off.
Items: For FX SHO, FX Cruiser SHO
1 Ignite ignition coil (#1–#4) 2 Operate injector (#1–#4)
(*1)
: Operate fuel pump module
5. Active test: With the engine running, each cylinder is dropped and the engine speed is
checked for changes to determine if the cylinder is malfunctioning. These tests can be per-
formed quickly.
6. Data logger: From the data stored in the ECM, no more than 2 items of 78 seconds of recorded
data are displayed on a graph. In addition, the operating time as compared to the engine speed
and the total operating time are displayed. This allows you to check the operating status of the
engine. For FX SHO, FX Cruiser SHO models, you can also save the ECM record data in a file
so that you can read and display the graph later.
Items: For FX SHO, FX Cruiser SHO
1 Engine speed
2 Battery voltage (12–16)
(*1)
: Intake air pressure
(*2)
: Oil pressure switch
YDIS
3 Throttle position sensor
4 Engine temperature
9-3
3 Operate electric fuel
(*1)
pump
(*1)
5 Intake pressure
(*2)
6 Oil press switch
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