Yamaha 5YF2-AE1 Service Manual page 231

EBS01034
For CDN
2. Ignition spark gap
• Disconnect the spark plug cap from the
spark plug.
• Connect the ignition dynamic spark tester
1 as shown.
2 Spark plug cap
3 Spark plug
• Set the main switch to "ON".
• Measure the ignition spark gap a.
• Crank the engine by pushing the starter
switch and gradually increase the spark
gap until a misfire occurs.
Minimum ignition spark gap
6 mm (0.24 in)
• Is there a spark and is the spark gap within
specification?
NO
YES
The ignition system
is OK.
IGNITION SYSTEM
EBS01034
For Europe and Oceania
2. Ignition spark gap
• Disconnect the spark plug cap from the
spark plug.
• Connect the ignition checker 1 as shown.
2 Spark plug cap
• Set the main switch to "ON".
• Measure the ignition spark gap a.
• Crank the engine by pushing the starter
switch and gradually increase the spark
gap until a misfire occurs.
Minimum ignition spark gap
6 mm (0.24 in)
• Is there a spark and is the spark gap within
specification?
8 - 9
ELEC
NO
The ignition system
is OK.
– +
YES