1H-1 Ignition System:
Ignition System
Schematic and Routing Diagram
Ignition System Diagram
B649G11802001
The fully transistorized ignition system consists of the following components: a CKP sensor (which is made up of the
CKP sensor rotor and CKP sensor), ignitor, throttle position sensor, two ignition coils and four spark plugs. The ignition
timing is programmed and stored in the ignitor’s ROM (Read Only Memory). The CKP sensor is mounted on the right
end of the crankshaft. The induced signal in the CKP sensor is sent to the wave-form arrangement circuit and the CPU
receives this signal and calculates the best ignition timing, throttle position sensed by throttle position sensor and data
stored in the ROM. The CPU outputs the signal to the transistor of the ignition coil output circuit which is connected to
the primary windings of the ignition coils which is turned “off” and “on” accordingly. Thus, it induces the secondary
current in the ignition coil’s secondary windings and produces the spark between the spark plug gaps.
The ignition cutoff circuit is incorporated in the ignitor to prevent the engine from overreving. If the engine speed
reaches 10 900 r/min, this circuit will cutoff the ignition primary current for the #1 and #4 spark plugs.
CAUTION
!
The engine is capable of running at over 10 900 r/min without a load, even if the ignition cutoff circuit is
in effect; however, this may cause engine damage. Therefore, never run the engine over 10 900 r/min
without a load.
Y/W
Bl Y
Engine
stop switch
Turn signal/
Side-stand relay
Fuse
(15 A)
Ignition
switch
Main
fuse
(30 A)
Battery
Ignition
coils
Spark plugs
Throttle position sensor
Ignitor
B/Br
B
B/R
B/Bl
B/R
CKP sensor
B/O
I649G1180001-02
Summary of Contents for 1200 bandit
Page 1: ...9 9 5 0 0 3 9 2 8 0 0 1 E GSF1200 GSF1200S ...
Page 4: ......
Page 89: ...Engine Mechanical 1D 21 B I649G1140073 02 C I649G1140074 02 24th pin 1st pin I649G1140075 03 ...
Page 288: ...2D 20 Wheels and Tires ...
Page 446: ...Prepared by December 2005 Part No 99500 39280 01E Printed in Japan 448 ...
Page 447: ...Printed in Japan K6 ...