Instruction Manual

Evolution
®
58GX2 ICU–L Ignition Addendum
The ignition system that is included with your Evolution 58GX2 engine has been changed to the ICU-L type ignition. The instructions for the ICU-L type ignition are shown below.
Evolution 58GX2 Engine Simple Start 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 a FAIL-SAFE feature: After 90 seconds of inactivity, it automatically switches to an inactive state. In order to resume 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.
Installation of the 58GX2 Simple Start Ignition Unit
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. Secure the ignition unit to the airframe using the provided hardware. Install the bolts through the three rubber
grommets and tighten securely. The grommets help to dampen the ignition unit from vibration. DO NOT HARD MOUNT. Your Evolution ignition module has steel braided spark plug leads with
grounding straps. Attach the grounding strap lead to a cylinder base bolt or suitable place on the engine, and push the spark plug cap firmly on the spark plug. Install the spiral wrap spark plug
lead covering to protect the plug lead steel braiding from any possible chafing.
Enabling or Disabling Battery Test
This ignition makes it possible to enable or disable the battery test. The battery test is very useful when Li-Po or Li-Ion batteries are used. During the test, a series of flashes are generated and
voltage is measured. When the battery passes the test, that means it will run for a minimum of 10 minutes in flight.
If you want to change the type of silencer, do the first two steps and then continue to PROGRAMMING SEQUENCE. Otherwise, follow these steps:
Programming
Connector
LED
Ignition
LED
PROGRAMMING
programming connector
POWER
power connector
- Battery test is disabled when jumper is removed and programming pins are open
(this is the default condition of the engine as shipped from Evolution)
- Battery test is enabled when jumper is plugged and programming pins are closed
CAUTION: With the battery test enabled the engine can unintentionally start during the testing process. Be sure to
restrain the aircraft prior to turning the ignition on when using the battery test feature.
- Enable or disable battery test when the ignition is off
FIRST STEP
- Screw on pickup on engine
- Attach the plastic protection to the high
voltage cable
- Connect boot to plug
- Mount ground terminal on the high-voltage
cable bolt holding the engine to the motor
mount
- Mount the ignition to the airplane
SECOND STEP
- Connect enclosed LED to the ignition (red or
red/black wire to left)
START
- Keep clear of the propeller
- Connect battery with the ignition box
Starting Sequence
- Move propeller to put the piston at bottom dead center of its travel
- Keep your hands outside of the propeller radius to avoid serious injury
- Hold the airplane and switch on ignition
- If battery test is enabled, the ignition starts battery test; during this test, a series of sparks are generated for about 2 seconds and LED is blinking
- If battery test is disabled, then LED blinks for about 2 seconds
- If LED turns off, you can fly; otherwise battery is low
BATTERY TEST ENABLED:
- close programming pins with
enclosed jumper
BATTERY TEST DISABLED:
- open programming pins
(remove jumper)
DESCRIPTION
The ICU-L ignition makes the selection of a pre-ignition curve
(“short” or “long” exhaust stroke) possible. You can change the
setting using the supplied programming connector.
The setting is permanently stored in the memory of the ignition
even if the supply voltage is turned off. You do not need to
change the setting when you turn the ignition on again.
BASIC FEATURES
-Two preprogrammed pre-ignition curves (“short,” which is the
default setting, and “long,” the tuned silencer)
-Sleep mode after 90 seconds of engine inactivity to save battery
power
-Ignition shuts off if engine runs counterclockwise