MSD 6214 Midget DIS-2 Programmable Race Ignition Installation - Manual (Page 2)

2 INSTALLATION INSTRUCTIONS
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MULTIPLE SPARKS
The Midget Ignition produces full power multiple sparks for each firing of a plug. The number
of multiple sparks that occur decreases as rpm increases, however the spark series always lasts
for 20° of crankshaft rotation. Above 1,200 rpm there is only one full power spark, for limiting
power drain on the battery. Multiple sparks will not activate unless rpm drops below 500 rpm.
BATTERY
The Midget Ignition Control will operate on any negative ground, 12 volt electrical system.
The Ignition can be used with 16 volt batteries and can withstand a momentary 24 volts in
case of jump starts. The Ignition will deliver full voltage with a supply of 11- 18 volts and will
operate momentarily with a supply voltage as low as 9 Volts.
If your application does not use an alternator, allow at least 17 amp/hour for every half hour
of operation. The Ignition uses about .8 Amps for every 1,000 rpm. If the engine is cranked
with the same battery or other accessories such as an electric fuel or water pump are used,
the amp/hour rating should be higher. Note: The negative battery terminal must be grounded
to the engine case.
COIL PACK
The MSD Programmable Midget Ignition should be used with the PN 8240 matched con-
nector coil pack. For more information on recommended coils, contact our Customer Support
Department at (915) 855-7123.
TACHOMETERS
The Midget Ignition features a Tach Output Wire (Gray) and Black Ground wire. This wire
provides a trigger signal and ground for tachometers. The Tach Output Terminal produces a
12 volt square wave signal with a 30° duty cycle.
SPARK PLUGS AND WIRES
Spark plug wires are very important to the operation of your ignition system. A good qual-
ity, helically wound wire and proper routing are required to get the best performance from
your ignition, such as the MSD 8.5mm Super Conductor Wire. Helically wound wires provide
a good path for the spark to follow while keeping Electro Magnetic Interference (EMI) to a
minimum. Excessive EMI, such as the amount that solid core wires produce, may interfere
with the operation of the MSD. Solid Core spark plug wires cannot be used.
PROTECTION
The Programmable Midget Ignition has a built in reverse polarity protection circuit. This will
protect the ignition in the event of wrong connections. It will also shut off for protection from
a surge in power. The ignition will still operate once the surge or polarity is corrected.
LED INDICATOR
There is an LED that monitors the status of the Ignition. The LED will verify trigger inputs and
will flash trouble codes such as a Code 2 for Low Battery supply voltage.
PROGRAMMING OPTIONS
The Programmable Midget Ignition has many features that give you more control over
your timing and rev limits. For more information on programming these features, consult the
supplied Programming Instruction booklet, or see the Help menu in the Pro-Data+ Software.