Shibaura ST330, Workshop Manual

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232
（
3
）
Though the pinion is engaged with the ring gear, the starting motor dose not start
Unit Cause Remedy
Wiring
Disconnected wire connecting the battery and magnet switch.
Insufficient tightening of the lead wire connecting the magnet switch
and motor.
Repair, retightening, or
replace the wire.
Starting motor
Locked bell bearing.
Improper installation.
Worn out brush, improper contact of brush spring.
Stained commutator.
Defective armature or field coil.
Insufficient tightening of connections of the field coil and brush.
Replace
Install properly
Replace
Correct
Correct or replace
Retighten
Magnet switch
Broken holding coil
Improper contact of contact
Roughened contact surface of contact
Replace
Replace
Replace
Battery Discharged Charge
（
4
）
Motor stars rotating before the pinion is engaged with the ring gear
Unit Cause Remedy
Starting motor
Improper sliding of pinion shaft
Worn out pinion tooth top
Improper pinion pushing position
Replace
Correct
Replace
Engine Worn out ring gear Replace
Magnet switch Defective magnet switch Replace