Evolution Engines 58GX - Manual (Page 5)

Evolution Engines Ignition System
The spark ignition included with your Evolution ® gas engine is a modern generation electronic ignition. There are many useful
functions built into the microprocessor of this unit.
In addition to the basic ignition functions, the unit has two FAIL-SAFE features.
1. After 90 seconds of inactivity it automatically switches to an inactive state. In order to restart normal operation it is necessary to
turn the battery switch off and then back on. This function will preserve battery life should the switch be left in the on position
during inactivity.
2. During normal operation the battery voltage will decrease. When the voltage reaches 4.4V the ignition unit will limit maximum rpm
in the range of 3000–4000 rpm. This is an indication to land the model as soon as practical.
Installation of the Ignition Unit
The electronic ignition unit requires a 4.8–6 volt battery source separate from your model’s radio system. A 600mAh battery
will provide more than 1.5 hours of operation. The supplied battery connector is compatible with the JR
® radio battery
connector.
While installing the ignition unit in your model be careful to have all parts that are connected to the unit and the engine
situated as far as practical from the radio receiver and radio antenna. The throttle servo should be mounted a distance of
8–12 inches from the engine. The spark plug cable must not touch any part of the model structure as vibration may damage
the cable. If this is not practical it will be necessary to provide an insulation material for the cable. The ignition unit itself
should be wrapped in foam rubber to prevent engine vibration from damaging the electronics. All components must be
protected from contact with engine fuel.
Plug
Plug
Cap
Probe
BASIC PROBE AND MAGNE T ADJUSTMENT
Magnet A
Magnet B
Magnet A
Probe
Propeller Driver
Direction
of Rotation
Propeller Driver
Distance of probe from magnet 0:5 mm
Screw securing the connector in required position
Red
Brown
Orange +
-
Data Out
Battery
Connector
To Battery
Switch
Magnet A position on the driver
corresponds to the
TOP DEAD CENTER of the piston.
Basic pre-ignition adjustment
is given by magnet A.
Magnet distance is 180 degrees.
Ignition
Module
Technical data
Supply Voltage 4.8 – 6 V
Current Consumption 90 – 120mAh at Idle
500mAh/9000 rpm
Plug Voltage 18 Kv
Weight 140 g
Dimension 55x50x25mm
Sensor Magnet Space max. 0.5mm (.020”)
Plug Spark Gap .6mm (.025”)
Working Temperature -10 to 85 deg C
Installation of the Ignition Unit Continued
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