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16. IGNITION SYSTEM ATV 50
SPECIFICATIONS
Item Standard
Standard type BR8HAS
Spark plug Hot type
Cold type
Spark plug gap 0.60.7 mm (0.024
"F" mark Full MXU 50/MX'ER 50 22BTDC/2000100rpm
Ignition timing
advance MXU 50 REVERSE 13.5BTDC/1500100rpm
Primary coil 0.20.3
Ignition coil resistance (20°C) Secondary with plug cap 8.09.3K
coil without plug cap 3.04.2K
TROUBLESHOOTING
High voltage too low No high voltage
· Weak battery or low engine speed · Faulty ignition switch
· Loose ignition system connection · Faulty CDI unit
· Faulty CDI unit · Poorly connected or broken CDI ground wire
· Faulty ignition coil ·Dead battery or faulty regulator/rectifier
· Faulty pulser coil · Faulty ignition coil connector
Normal high voltage but no spark at plug · Faulty pulser coil
· Faulty spark plug
· Electric leakage in ignition secondary circuit
· Faulty ignition coil
Good spark at plug but engine won`t start
· Faulty CDI or incorrect ignition timing
· Faulty change gear control unit
· Improperly tightened A.C. generator flywheel
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