GAMMATRONIX
BLACK TOP
(Dual System)
Ignition System Fitting Instructions
Preparation
READ THIS INSTALLATION MANUAL THOROUGHLY BEFORE YOU START
This unit is primarily intended for twin cylinder motorcycles with two sets of independent coils and points for each
cylinder. Before attempting to fit the unit,
check that you have the correct type
for your vehicle! The unit comes as
a 6v (Green LED) or 12v version (Yellow LED), both are negative earth. DO NOT USE THIS UNIT ON POSITIVE EARTH
VEHICLES. Fitting consists of mechanically mounting the unit, fitting (optional) new points and removing the existing
condensers, and connecting up the six wires. In the unlikely event you encounter problems, please download our
Ignition Systems Diagnostic Guide from our website at
www.gammatronix.com
. You can also contact Gammatronix
at email: [email protected] for advice. We will always take back and refund if the unit is found to be
unsuitable for your vehicle, provided it is undamaged.
Points
To get full benefit from the unit, you should replace the points
,
which may have already lead a hard life in your
conventional ignition and have pitted or damaged surfaces. This is not essential, but is a useful step to maximise
performance. Set the normal gap and dwell angle as for your vehicles standard setup. It is recommended that you
replace the spark plugs at the same time as fitting the electronic system to obtain maximum benefit from your new
installation. Ensure that the engine runs after fitment of the new points and plugs BEFORE you remove the
condenser or fit the system.
After verifying engine operation after fitting the new points,
disconnect the condensers, as the Electronic ignition
box will not work correctly with them in circuit. The Electronic ignition box has its own ‘condenser’ facility inside.
Mounting the unit
The Electronic ignition box can be strapped to a suitable point on the vehicle frame using the ties provided, looped
through the clips on the unit's underside. Tighten the ties so that the control box is secure, but do not overtighten.
Avoid mounting the unit too close to any direct source of heat (i.e. directly over the exhaust!) and ideally where it is
well ventilated. The unit, like the rest of your ignition system, doesn’t like getting drenched, so mount in a suitable
position away from where water may spray directly over it.
Wiring
With the unit mounted, new points fitted, and the condenser disconnected, we now have to wire up the unit. The
cable supplied is approx 400mm long, which you can trim or extend to suit.
Put simply, all you are doing is connecting up power and ground to the unit, and ‘breaking into’ the leads which
originally went from the points directly to the coil, so that the Electronic Ignition box is now in circuit with the
original points lead routing.
The unit has two channels Yellow and Blue – one for each cylinder. It doesn’t matter which section is connected –
but you must ensure that the points and coil of each cylinder stay together on either the yellow or blue channels. If
you swap points and coils between cylinders your vehicle will not start.
You have six wires to connect.
If you can clearly tell which lead is physically going to the points, the other has to be the coil power supply (6v or
12v) lead. If however there is ANY doubt, the best way to tell which is power and points, you need to use a
