Yamaha F225A Service Manual page 326

TRBL
SHTG
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. 32)
CAUTION:
Do not test the same cylinder three or more times, otherwise the spark plug insulator may be
damaged.
9-27
Troubleshooting
Fig. 32
69J3D11