Yamaha Waverunner 3 Manual

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STATIONARY TEST
Selecting this command displays a window where stationary tests (spark ignition coil #, operate
injector #, and operate electric fuel pump) can be selected.
 WARNING
Avoid clicking the Execute and Cancel buttons repeatedly, otherwise the ECM or PC will not
work properly and they could be damaged.
Fig. 39
1Explanation of selected item
2Confirmation item before the test
Sparking ignition coil procedure:
A voltage is applied to the ignition coil of the selected cylinder, a spark is created in the spark gap
tester, and then the ignition system is checked. Five sparks are created within five seconds.
 WARNING
Do not touch any connections of the spark gap tester lead wires.
Do not let sparks leak out of the removed spark plug cap.
Keep flammable gas or liquids away since this test will produce sparks. 
						

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1. Select the test that you wish to perform by either clicking it or pressing the up or down arrow
keys on your keyboard. (Fig. 39)
NOTE:
Make sure that the engine is not running.
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.
A special tool (spark gap tester YM-34487/90890-06754) is needed.
2. Connect the spark plug cap of the cylinder that will be tested to the spark gap tester.
Spark gap tester
È
 YM-34487 / É
 90890-06754
3. Set the spark gap length on the adjusting knob.
Ignition spark gap: 7–8 mm (0.28–0.31 in)
4. Select the cylinder number where the spark gap tester is connected, and then click the Select
button or press the Enter key on your keyboard. (Fig. 39)Fig. 40 Fig. 41
ÈÉ 
						

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5. Click the Execute
 button or press the Enter key on your keyboard. (Fig. 42)
Fig. 42
Fig. 43 
						

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NOTE:
If the engine is running an error message is displayed. Follow the instructions that appear. (Fig. 44)
Fig. 44
6. While checking the information that appears in the Test situation 
column, follow the test
instructions in the messages that are displayed. (See fig. 43.)
NOTE:
If an error occurs while the test is being performed, an error message is displayed. Follow the
instructions that appear in the error message. (Fig. 45)
Fig. 45
7. To stop the stationary test, click the Cancel
 button. (See fig. 43.)
8. Observe the spark through the discharge window of the spark gap tester. 
						

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9. To perform the test again to the same cylinder, click the Execute
 button or press the Enter key
on your keyboard. To perform the test on a different cylinder, click the Return [ESC]
 button or
press the Esc key on your keyboard to return to main menu where a different test can be
selected. (Fig. 46)
Fig. 46
NOTE:
If an error occurs while the test is being performed, the following message is displayed. (Fig. 47)
Fig. 47 
						

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Operating injector procedure:
A voltage is applied to the injector of the selected cylinder, the injector is activated, and then the fuel
system is checked. The fuel is injected 20 times within two seconds.
 WARNING
Do not perform the test with the injector removed from the throttle body or with any fuel
system parts removed. High-pressure fuel could spurt out.
When performing this operation, keep all sparks, flames, or other sources of ignition away
from the testing area. Gasoline is highly flammable.
1. Select the test that you wish to perform by either clicking it or pressing the up or down arrow
keys on your keyboard. (Fig. 48)
Fig. 48
NOTE:
Make sure that the engine is not running.
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.
Make sure that there is fuel in the fuel tank, otherwise an error will occur and the test cannot be
performed.
2. Select the cylinder to be tested, and then click the Select
 button or press the Enter key on your
keyboard. (Fig. 48) 
						

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3. Click the Execute
 button or press the Enter key on your keyboard. (Fig. 49)
Fig. 49
NOTE:
If an error occurs while the test is being performed, an error message is displayed. Follow the
instructions that appear.
4. Listen to the operating sound of the injector of the cylinder being tested.
Fig. 50
 WARNING
Do not touch the injector connector. 
						

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5. To perform the test again on the same cylinder, click the Execute
 button or press the Enter key
on your keyboard. To perform the test on a different cylinder, click the Return [ESC]
 button or
press the Esc key on your keyboard to return to the window where a different test can be
selected. (Fig. 51)
Fig. 51
CAUTION:
Do not test the same cylinder three or more times, otherwise the spark plug insulator could
be damaged.
Operating the electric fuel pump:
A voltage is applied to the electric fuel pump, the electric fuel pump is operated, and then the fuel
system is checked. The electric fuel pump is operated for ten seconds.
 WARNING
Do not perform the test with the injector removed from the throttle body or with any fuel
system parts removed. High-pressure fuel could spurt out. 
When performing this operation, keep all sparks, flames, or other sources of ignition away
from the testing area. Gasoline is highly flammable.
NOTE:
Make sure that there is fuel in fuel tank, otherwise an error will occur and the test cannot be per-
formed. 
						

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1. Select the test to be performed, and then click the Select
 button or press the Enter key on your
keyboard. (Fig. 52)
Fig. 52
NOTE:
Make sure that the engine is not running.
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. 
						

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2. Click the Execute
 button or press the Enter key on your keyboard. (Fig. 53)
Fig. 53
NOTE:
If an error occurs while the test is being performed, an error message is displayed. Follow the
instructions that appear.
3. Listen to the operating sound of the electric fuel pump.
4. To perform the test again, click the Execute
 button or press the Enter key on your keyboard. To
perform a different test, click the Return [ESC]
 button or press the Esc key on your keyboard to
return to the window where a different test can be selected. (Fig. 54)
Fig. 54