Honda CRF50F 2004-2015 - Ignition Coil Service

ALTERNATOR EXCITER COIL PEAK
VOLTAGE
• Check cylinder compression and check that the
spark plug is insta lled correctly .
Remove the seat assembly (page 2-3).
Disconnect the 4P and 2P connecto rs fr om the leM.
Connect the peak voltage a daptor or peak voltage
tester probes to the connector ter minals of the wire
harness side.
TOOLS:
Peak voltage tester
Peak voltage adaptor
MTP07·0286
(U.S.A. only) or
07HGJ-0020100
(Not available in
U.S.A .)
with commercially available digital multi meter
(impedance 10 Mn / DCV minimum)
CONNECTION:
Black/ red tanninal (+) - Green H
Shift the transmission into neutral.
Crank the engine with kickstarter and read the peak
voltage.
PEAK VOLTAGE: 100 V minimum
IGNITION SYSTEM
If the peak voltage measured at leM connector is r -~~~~-=:~:~~t~~~~~' l
abnormal, meas ur e the peak voltage at the alterna-
tor exciter coil connector.
Disc
onnect the alternator exciter coil connector
(Black/red) and connect the peak voltage adaptor or
tester probes to the connector terminal of the
exciter coil side and ground .
In the same manner as at the [ eM connecto r, mea-
sure t he peak voltage and compare it to the voltage
measured at the leM connector .
• If the peak voltage measured at the leM is abnor-
mal and the one measured at the alternator
exciter coil is normal, the wire harness has an
open ci rcuit, or loose connection .
• If both peak voltages are abnormal, follow the L __________________ ---'
checks described in the troubleshooting chart
(page 14 -4),
IGNITION COIL
REMOVAlIlNSTALLA TION
Disconnect the spark plug cap from the plug.
Disconnect the primary wires from the ignit ion coil.
Remove the bolt and ignition coil.
Installation
is in the reverse order of removal.
Tighten the ignition coil mounting bolt to the speci-
fied torque .
TORQUE: 5.9 N·m (0.6 kgf·m, 4.3 IbUt)
14-7