Buell P3 - Starter Diagnostics

5-4 2007 Buell P3: Electric Starter
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STARTER TROUBLESHOOTING
Table 5-3. Starter Troubleshooting
SOURCE OF
PROBLEM
PROBABLE CAUSE SOLUTION
Battery Voltage drop due to discharged battery. Charge battery.
Short-circuit or open between electrodes. Replace battery.
Poor contact condition of battery terminal(s). Clean and retighten.
Wiring Disconnection between starter switch and solenoid ter-
minal.
Repair or replace wire.
Malfunction in starter interlock system. See 7.11 STARTER/IGNITION INTERLOCK.
Starting Switch
or Starter Relay
Poor contact condition or poor connection. Replace.
Solenoid Poor contact condition caused by burnt contact. Polish contact surface or replace solenoid
assembly.
Repair.
Contact plate removed. Replace solenoid assembly.
Pull-in winding open or short-circuit.
Hold-in winding open. Check brush spring tension.
Starting Motor Poor contact condition of brushes.
Commutator burnt.
Correct on lathe or replace.
Commutator high mica. Correct by undercutting.
Field winding grounded. Replace.
Armature winding grounded or short-circuited.
Reduction gears damaged.
Insufficient brush spring tension.
Disconnected lead wire between solenoid and field
windings.
Repair or replace lead wire.
Ball bearing sticks. Replace bearing.
Battery Voltage drop due to discharged battery. Charge battery.
Short-circuit or open between electrodes. Replace battery.
Poor contact condition of battery terminal(s). Clean and retighten.
Wiring Disconnection between starter switch and solenoid ter-
minal.
Repair or replace wire.
Overrunning
Clutch
Overrunning clutch malfunction (rollers or compression
spring).
Replace overrunning clutch.
Pinion teeth worn out.
Pinion does not run in overrunning direction.
Poor sliding condition of spline teeth. Remove foreign materials, dirt, or replace over-
running clutch.
Reduction gears damaged. Replace overrunning clutch and idler gear.
Ring Gear Excessively worn teeth. Replace ring gear.
Solenoid Return spring worn. Replace solenoid.
Coil layer shorted.
Contact plate melted and stuck.
Starting Switch
or Starter Relay
Unopened contacts. Replace starting switch or starter relay.
Poor returning.