Baotian BT49QT-28, Руководство по обслуживанию

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36
III. IGNITION SYSTEM SERVICE
Troubles
Causes (Inspect and judge from
○ ○ ○ ○
,
1
)
Ignition coil voltage too
low
○
,
1
Inner resistance too low, inspect with a specified
circuit tester.
○
,
2
Crankshaft speed too low (storage battery
voltage too low, or starting rod too feeble when tread
on)
○
,
3
Circuit tester interfered (normal case: repeated
measured voltgage readings stay above standard).
○
,
4
Poor contact in ignition system wire
○
,
5
Poor ignition coil
○
,
6
Poor ignition and charging coils (measure
maximum voltage)
○
,
7
Poor CDI (abnormal in
○
,
1
～○
,
6
with sparkless
spark plug).
Intermittent voltage in
ignition coil
○
,
1
Incorrect circuit tester connection
○
,
2
Poor main switch
○
,
3
Poor CDI connector
○
,
4
Breakage or poor contact of CDI earthing wire
○
,
5
Poor ignition and charging coils (measure
maximum voltage)
○
,
6
Poor trigger coil (measure maximum voltage)
○
,
7
Poor contact of high-voltage wire.
○
,
8
Poor CDI (abnormal in
○
,
1
～○
,
7
with sparkless
spark plug)
Sparkless spark plug with
normal voltage of ignition
coil
○
,
1
Poor spark plug or leakage in secondary ignition
coil.
○
,
2
Poor ignition coil.
Ignition and charging coil
voltage too low
○
,
1
Inner resistance too low, measure with specified
circuit tester
○
,
2
Crankshaft speed too low, (storage battery
voltage too low, or starting rod too feeble when tread
on)
○
,
3
Circuit tester interfered (normal value: repeated
measurement values above reference value).
○
,
4
Poor ignition and charging coils (when
○
,
1
～
○
,
3
are normal).
Intermittent voltage of
○
,
1
Poor ignition coil