Dropping A Cylinder - Yamaha WaveRunner FX140 Service Manual

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Dropping a cylinder:

Start the engine and observe the changes in engine speed for 20 seconds.
For the first ten seconds operate all four cylinders, and then stop one cylinder for five seconds. For
the last five seconds operate all four cylinders.
A screen that allows you to select which ignition and fuel to cut is displayed.
1. Select which ignition and fuel you wish to cut by either clicking it or pressing the up or down
arrow keys on your keyboard. (Fig. 55)
NOTE:
• Release the throttle lever.
• The selected item is highlighted in light blue.
• The details of the selected test are displayed in the column on the right, and the items that must
be either checked or performed before the test can start are displayed below the table.
• Only one item can be selected at one time.
2. Click the Select button or press the Enter key on your keyboard. (Fig. 55)
3. Start the engine.
4. Click the Execute button or press the Enter key on your keyboard. (Fig. 56)
OPERATING
Fig. 56
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