Ignition System Troubleshooting - Honda CRF110F Service Manual

IGNITION SYSTEM
TROUBLESHOOTING
Inspect the following before diagnosing the system.
- Faulty sparl<. plug
- Loose spar1t plug cap or spark plug wire
_ Waler got into the spark plug cap
(leaking
the ignition coil secondary voltage)
No sparit at plug
;
primary
voltage
generator
4-4
2.
3.
not
4.
5.
6.
I
speed is I (Battery is undercharged or the
force of kickstarter is weak.)
time of the tester and measured pulse were
i
(System is normal
if
measured voltage is
standard voltage at least once.)
connected connectors or an open circuit in the
coil.
con trol module
([eM)
(in case when above
I.
2. or engine slop switch.
3. connected [eM connectors.
4. No voltage a\ Black wire of the 1eM.
S. Open circuit or poor connection in the Green wire of the
[eM.
voltage adaptor.
pulse generator. (Measure the peak voltage.)
above No.1 - 7 are
;
2. Cranking speed is slow. (Battery is undercharged or the
operating force of kickstarter Is weak.)
3. The sampling time of the tester and measured pulse were
not synchronized. (System is normal if measured voltage is
over the standard voltage at least once .)
4. Faulty ignition pulse generator (in case when above No.1 -
3 are
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