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Commutator Inspection, Cleaning; Armature Inspection; Brush Lead Inspection - Kawasaki KLX250R Owner's Manual

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Electrical Starter System
Commutator Inspection, Cleaning
•Smooth the commutator surface [A] if necessary with fine
emery cloth [B], and clean out the grooves.
•Measure the outer diameter [A] of the commutator [B].
*Replace the starter motor with a new one if the commu-
tator diameter is less than the service limit.
Commutator Diameter
Standard:
28 mm (1.1023 in.)
Service Limit:
27 mm (1.0630 in.)
Armature Inspection
•Using the x 1
n
hand tester range, measure the resis-
tance between any two commutator segments [A].
*If there is a high resistance or no reading (
00 )
between any
two segments, a winding is open and the starter motor
must be replaced.
•Using the highest hand tester range, measure the resis-
tance between the segments and the shaft [B].
*If there is any reading at all, the armature has a short and
the starter motor must be replaced.
Special Tool - Hand Tester: 57001-1394
NOTE
OEven if the foregoing checks show the armature to be
good, if may be defective in some manner not readily
detectable with the hand tester.
If
all other starter motor
and starter motor circuit components check good, but
the starter motor still does not turn over or only turns
over weakly, replace the starter motor with a new one.
Brush Lead Inspection
•Using the x 1
n
hand tester range, measure the continuity
between the following:
Terminal Bolt and Positive(+) Brush [A]
Brush Plate and Negative (-) Brush [BJ
*If there is not close to zero ohms, the brush lead has
an open. Replace the terminal bolt assembly and/or the
brush holder assembly.
Special Tool - Hand Tester: 57001-1394
ELECTRICAL SYSTEM 15-15
GP110607S1
C

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