Checking The Ignition Spark Gap - Yamaha MZ360 Service Manual

ELECTRICAL COMPONENTS
a
3
1

CHECKING THE IGNITION SPARK GAP

1.
Check:
• Engine oil level
Insufficient  Add the engine oil.
(Refer to "ENGINE OIL LEVEL" on page 2-4)
2.
Check:
• Spark plug condition
Wear/damage  Replace.
(Refer to "SPARK PLUG" on page 2-3)
3.
Check:
• Ignition spark gap
Out of specification  Perform the ignition system
troubleshooting, starting with step 8.
(Refer to "ENGINE DOES NOT START" on page
6-1)
Minimum ignition spark gap:
6.0 mm (0.24 in)
TIP
If the ignition spark gap is within specification, the ignition
system circuit is operating normally.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Disconnect the spark plug cap "1" from the spark
plug.
b. Connect the ignition checker "2" as shown.
c. Connect the ignition checker lead to spark plug "3"
2
as shown.
Ignition checker:
90890-06754
Oppama pet–4000 spark checker:
YM-34487
d. Set the engine switch to "ON".
e. Pull the recoil starter handle.
f. Measure the ignition spark gap "a".
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
5-10
1
2
3
4
5
6
7
8
9
10