KMS MA-5 manual
Version 5.1
14
Warning:
When using wasted spark the read out on the timing light must be divided by
2. A timing light displaying 20 degrees advance with wasted spark is in reality
10 degrees ignition advance.
Coil on time:
A coil should be charged before every discharge (plug spark). The coil charging time is indicated in
ms. It should normally be 1.4 to 3.5 ms depending on the type of coil. Longer coil charging leads to
unnecessarily high power consumption and heat development, shortening the service life of the coil.
Warning:
The coils can only be operated via a driver circuit. If the computer is
connected to the coil directly, the ECU can get damaged beyond repair. Many
modern coils feature a built-in driver stage. However, if a coil without an
integrated driver stage is used, the separate KMS ignition driver module with
part number KAC.05.002 will be needed.
Dis-coil:
The choice is between dis-coil (wasted spark) and single coil control (rotor and distributor cap). If you
have a dis-coil (and also when using coil per plug wasted spark) the box has to be ticked.
If you use a rotor with distributor cap you need to deselect the Dis-coil tick box.
Tacho output:
Select the amount of cylinders of the vehicle. You can choose between 4, 5, 6, 8 and 10 cylinders.
For a 1, 2 choose 4 cylinders. For a 3 cylinder choose 6 cylinder.
Warning:
For adaptation to a 5, 8 or 10 cylinder configuration, ensure that the
‘No. of
cylinders
’ has been specified correctly before connecting the coils. If the coils
are connected with the numbers of cylinders incorrectly set, the coils (via
output 4 and 5) can get seriously damaged.
