Transistorized Lgnition System Integrated With Side Stand Switch And Neutral Switch - Honda Motorcycle Service Manual

IGNITION SYSTEMS
Transistorized lgnition System Integrated With
Side Stand Switch And Neutral Switch
Transistorized lgnition Systems (TPI) integrated with a side
stand switch and neutral switch operate similar to other TPI
systems except that the TPI unit also controls the circum-
stances that allow ignition through a resistor and a transistor.
The ignition control circuit in the ignition control module is
deactivated in the same way as the DC-CDI ignition system
Under condition (a)and (b): if the sidestand is lowered and
the transmission is placed i n gear, the signal f r o m the
ignition control module power supply line is applied t o the
transistor through the resistor t o turn the transistor ON.
When thetransistor isturned ON,thesignalfrom the ignition
control module power supply line is deactivated. This means
that no electrical current from the ignition control module
power supply line is applied ta TR2 (power transistor) and
ignition is not possible.
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TPI SPARK UNIT
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Date of Issue : March, 1995
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HONDA MOTOR CO..LTD.
23-25