Section 07 ELECTRICAL SYSTEM
Sub-Section 04 (STARTING SYSTEM)
07-04-4
STARTING SYSTEM TROUBLESHOOTING
SYMPTOM CAUSE REMEDY
Starter does not turn.
Burnt 5A fuse. Check wiring condition and replace
fuse.
Poor contact of battery terminal(s). Clean and tighten terminal(s).
Poor battery ground cable connection. Clean and tighten.
Weak battery. Recharge or replace battery.
Poor contact of start/stop switch,
safety lanyard switch or solenoid.
Replace.
Open circuit: start/stop switch or
solenoid.
Replace.
Safety lanyard or MPEM. Refer to ELECTRICAL SYSTEM 07-06.
Starter engages; but does
not crank the engine.
Poor contact of brush. Straighten commutator and brush.
Burnt commutator. Turn commutator in lathe.
Worn commutator segments. Undercut mica.
Shorted armature. Repair or replace armature.
Weak brush spring tension. Replace brush holder or spring.
Weak magnet. Replace yoke assembly.
Worn bushings. Replace clutch.
Weak battery. Recharge or replace battery.
Starter engages; but does
not crank the engine.
Worn clutch pinion gear. Replace clutch.
Defective clutch. Replace clutch.
Poor movement of clutch on splines. Clean and correct.
Worn clutch bushing. Replace clutch.
Worn ring gear. Replace ring gear.
Starter motor keeps
running.
Shorted solenoid winding. Replace solenoid.
Melted solenoid contacts. Replace solenoid.
Sticking or defective starter clutch. Lubricate or replace.
Presence of salt water in the electrical
box which gives continuity.
Verify electrical box watertightness.
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