Yamaha 1999 YZF-R6, Service Manual

Page: 92 / 425

3-23
CHECKING THE SPARK PLUGS/
CHECKING THE IGNITION TIMING
CHK
ADJ
13 Nm (1.3 m kg)
NOTE:
NOTE:
5. Check:
electrodes 1
Damage / wear Replace the spark plug.
insulator 2
Abnormal color Replace the spark plug.
Normal color is medium-to-light tan.
6. Clean:
spark plug
(with a spark plug cleaner or wire brush)
7. Measure:
spark plug gap
a
(with a wire gauge)
Out of specification
Regap.
Spark plug gap
0.6 0.7 mm
8. Install:
spark plug
Before installing the spark plug, clean the spark
plug and gasket surface.
EB303050
CHECKING THE IGNITION TIMING
Prior to checking the ignition timing, check the
wiring connections of the entire ignition system.
Make sure that all connections are tight and free
of corrosion.
1. Remove:
bottom cowling
Refer to “COWLINGS”.
rider seat
fuel tank
Refer to “SEATS” and “FUEL TANK”.
air filter case
Refer to “AIR FILTER CASE AND IGNITION
COILS”.
timing mark accessing screw 1