Yamaha FZR400 1988-1989 Service Manual page 386

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ELECT
CAL SYSTEM
Spark plug
-Full-transistor system
-Switches and wiring
-Starter motor
COMPRESSION SYSTEM
Cylinder and cylinder head
STARTING FAILURE/HARD STARTING SHTG
Worn electrodes
??
Wire between terminals broken
??
Improper heat range
??
Faulty spark plug cap
??
Broken or shorted primary/secondary
??
Faulty igniter unit
??
Faulty pickup coil
??
Faulty engine stop switch
??
Broken or shorted wiring
??
Faulty neutral switch
??
Faulty starter motor switch
??
Faulty sidestand switch
??
Faulty starter motor
?
Faulty starter relay
?
Faulty circuit cut-off relay
?
Faulty starter clutch
?
Loose spark plug
?
Loose cylinder head or cylinder
?
Broken cylinder head gasket
?
Worn, damaged or seized cylinder
??
9 - 2

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