Gammatronix Black top Dual System User manual

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, chec 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: gammatronix@gmail com 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

voltmeter Disconnect both leads from the coil, (measuring with them fitted will give a false result due to
conduction through the coil of the points are open!) and with the ignition switched on, look for a power supply feed
with the meter on each of the wires with respect to vehicle ground One should show battery voltage, the other
should have no voltage present The one with no voltage is the points, the one with power is the ignition coil power
supply Note which cable is which, and mark them up to avoid confusion later
Brown
–
ignition power connection
Grey
–
system ground / earth (vehicle chassis)
Thick
Yellow
–
Channel
1
Coil
points
terminal
(originally connected to points)
Thin Yellow
–
Channel 1
Points
Thick Blue
–
Channel 2
Coil
points terminal
(originally connected to points)
Thin Blue
–
Channel 2
Points
The power for the Electronic Ignition unit is supplied directly from the original coil power leads or the switched
ignition feed These circuits should normally be fused and protected by a fuse already fitted to the vehicle itself
Make sure you connect to a switched source of power or the unit will be on all the time and drain your battery
Brown - Fit the Brown wire to the coil supply, either at one of the coils or from a switched ignition feed
Grey - Connect this ground wire to a good clean earth position on the vehicle frame or body
Thic Yellow – Cylinder 1 - Connect using a suitable connector onto the coil points tab / post / wire
Thin Yellow – Cylinder 1 - Connect to the wire that goes to the points
Thic Blue – Cylinder 2 - Connect using a suitable connector onto the coil points tab / post / wire
Thin Blue – Cylinder 2 - Connect to the wire that goes to the points

Using the small cable ties provided, make good the cable routing and tie together any excess loose cable In
particular, make sure low voltage wiring cannot touch the large HT output wire (that goes to the plugs), as arcing
may occur which will damage the unit
Testing
If all is correct, switch on the ignition and start the engine It should fire up, and run under your new electronic
installation If it does not, MAKE SURE THAT you have not swapped points and coils over between cylinders! If power
is going to the unit correctly, the LED should be lit
If your system does not run correctly, please download our Ignition Systems Diagnostic Guide from our website at
www gammatronix com
Take the vehicle on a short journey close to home to test the installation is sound and working correctly
A note on Conventional Ignition Systems
Conventional ignition systems are simple designs, dating back over 100 years They create a spark by simply
connecting and disconnecting a source of DC current to the primary (via the points) to create a high voltage pulse on
the coil secondary If you turn on the ignition without starting and running the engine, you have an approx 50/50
chance that the points are either open or closed If closed, the coil will be fed with a constant (not pulsed) source
of current which will cause it, and the electronic ignition, to heat up excessively if left in this state for more than a
minute or two It is good practice never to leave the ignition on without the engine actually running
Safety, end of life, and warranty statement
Be aware that ignition systems produce thousands of volts to create the spark. Take care when fitting this unit and do
not touch the coils or connections with the engine operating. This unit is an installa le component and not a complete
system in its own right and therefore requires installation into an existing vehicle ignition system. The installation, use
and suita ility in a given application is the responsi ility of the installer. Any damages or consequences are limited to
the replacement of the unit under the 12 month guarantee or original purchase price. Do not allow the unit to ecome
damaged, wet, dismantled, or make modifications to the enclosure or internal parts. Do not use the unit outside of its
operating voltage specification (according to model). At end-of-life this product should e taken to suita le recycling