Honda CBR600F4i Series Service Manual page 438

17.
IGNITION SYSTEM
SYSTEM DIAGRAM
SERVICE INFORMATION
TROUBLESHOOTING
SERVICE INFORMATION
GENERAL
17-0
17-1
17-3
IGNITION SYSTEM INSPECTION
IGNITION PULSE GENERATOR
IGNITION TIMING
17-4
17-6
17-8
Some electrical components may be damaged if terminals or coru I!!ctors a,e connected or disconnected whi le the igni-
tion switch is turned to "ON" c111d current is present.
W lr!in servicing the ignition systP.m, always follow the steps in the troubleshooting sequence on page 17-3.
This mntorcycle's Ignition Control Module (ICM) is built into the Engine Co ntrol Moduli! (ECM).
The ignition timing does not normally need to be adjusted si nce the ECM is factory preset.
The ECM may
L,t,,
damaged if dropped. Alsn if thP. connector is disconnected when current is flowi ng. the excessive volt-
age may damage thP. module. Always turn off the ig nition switch before servicing.
A faulty ignition system is often related to poor connections. Check those connectio ns before proceed ing. M11kP. sure the
battery is adequately charg!id , Using the starter motor w ith
II
WP.Ilk battery results in a slower engine crooking speed as
well as no spark at the spark plug.
Use sp11rk plug of the correct heat range. Using spark plug w ith an im:orr!i<:t treat range can damage th e engine.
The direct igniti on coil that the ignition <:oil and spark pl ug cap a re integrated, is adnptP.rl in thrs motorcycle.
Refer to section 5 ror Thrott le Position (TP) SP.nsnr. cam pulse generator and ECM inspection.
SPECIFICATIONS
ITEM
SPECIFICATIONS
Spark plug (Iridium)
NGK
IMR9A-9H
--
DENSO
IUH27D
-
Sµark plug gap
0.80 - 0.90 mm (0.031 - 0.035 in)
Ignition coil peak vo ltage
100 V m i nimum
Ignition pulse ge11eI a tor peak voltage
0.7 V minimum
Ignition timing ("F" rna,k)
13° BTDC at id le
iii
17-1