Honda CRF450R 2007 Service Manual

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IGNITION SYSTEM
IGNITION SYSTEM INSPECTION
• If there is no spa rk at the plug, check all cennec- , -- -------:--:- - --------,
tions for loose or poor contact before measuring DIGITAL MULTIMETER
•
~~~h ~~a~:C~~~~nded digital multi meter or a , .~.~_-,._--- ..... '\\ .. ~ .. ;. ~~;:,dua~ , ~ I = e 10 MOJDCV
commercially available digital multi meter with .
an impedance of 10 M!lIDCV minimum.
• The display value differs depending upon the : '. .
internal impedance of the multi meter. <. . 00
Connect the peak voltage tester (lgnit ionMate,
U.S.A. only) or peak voltage adap ter to the digital
multi meter.
TOOLS:
IgnitionMate peak vottage te s ter MTP07-0286
(U.S.A. only) or
Peak voltage adaptor 07HGJ·0020100
(not available in
U.S .A.)
with commercially available digital multi meter
(impedance 10 M fl/ DCV minimum)
IGNITION COIL PRIMARY PEAK
VOLTAGE
Check all system connec t ions befo re inspection.
If the system is disconnected, incorrect peak vol tag e
might be measured.
Check cylinder compression and check that the
spark plug is ins ta lled correctly .
Remove the fu el tank (page 3-8).
Shift the transmission into neutral.
Co nn ect a known'good spark plug to the spark plug
cap and ground the spark plug to the cyli nder as
done in a spark test.
PEAK VOLTAGE ADAPTOR
With th e ign i tion co il primary wi re connected, con- re;; ~~~~~ i=====~
nect the peak voltage adaptor to th e ignition coil.
TOOLS:
IgnitionMate peak voltage tester MTP07 ·0286
(U.S.A. only) or
Peak voltage adaptor 07HGJ-0020100
(not available in
U.S.A.)
w ith commerci a lly available digit al multi meter
(impedance 10 M fl/ DCV minimum)
CONNECTION: Body ground 1+) - Black/ yello w H
Shi ft the transmission into neut ra l.
Crank the engine and read the ignition coil primary
peak voltage.
STANDARD: 100 V minimum
If there is no voltage, check the continuity in Black!
yellow and Green/black wires between the ignition
coil and ICM.
If the wires are good, follow the checks described in
the troubleshooting chart on page 18·4.
18-5

Honda CRF450R 2007 Specifications

General

Brand	Honda
Model	CRF450R 2007
Category	Motorcycle
Language	English