User Manual

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The DLA ignition system is designed for input voltage ranging from 4.8 to 6.0 volts, no more and no less.
A battery pack of 1200mah or greater may be sufficient for a day of flying for most users. Check your battery
voltage with a voltage meter before every flight and do not fly if the voltage is not between 5.2 and 6.0 volts; the
voltage at the start of a flight may not remain for the duration of the flight. Disconnect the battery from the ignition
system while charging the battery. The ignition module should be connected to the battery through a heavy duty
switch, mounted where it can be reached easily when starting the engine.
NOTE: A 6 volt or larger battery pack must be regulated to between 5.2 and 6.0 volts or it will supply too high a
voltage to the ignition module. We recommend using a Smart Fly Ignition regulator.
The ignition module and its battery should both be "soft" mounted with 1/2in foam on all sides to avoid damage
from vibration. All parts in the ignition system should be mounted no less than 12in. away from any part of the
airplanes radio equipment to avoid possible interference. The shielded plug wire is wrapped in a plastic spiral
covering to help protect it from damage and wear. Even so it must be inspected frequently as damage to the
shielding may cause radio interference.
It is important to understand how the ignition system is to be wired. Mount the ignition module using the four
supplied rubber grommets so as to create a 1/16" gap between the ignition module and the mounting surface.
Without this 1/16" gap the ignition module can overheat.
Important: If the electronic ignition overheats it will malfunction (e.g., backfiring or shutting down).
Ignition details:
The red cable is positive (+),while the black is negative(-).
It is important to achieve the correct coordination of the sensor(s) to the magnets for fitting a new ignition.
The spark plug that comes with DLA engines is an NGK CM-6 or equivalent, gapped at 0.018in. to 0.020in. Torque
should be 7 to 8 ft-lbs. Be very careful not to over tighten it or damage to the cylinder threads may result. The plug
cap comes with an internal grounding spring and a split retainer ring around its base; they both must be used at all
times. The plug cap fits very tightly to the spark plug; you should feel a release of pressure when the cap seats
properly to the plug. It will also be difficult to remove the plug cap from the plug; be sure you pull straight out on the
cap and not on the plug wire. If the plug is not properly connected to the cap, damage to the module may result.
We highly recommend using the “SmartFly” Optical cable engine cut-out switch in any CDI ignition
installation. This unit optically disconnects your radio receiver from the high voltage CDI ignition – thereby
eliminating most of the electrical interference associated with gas engine ignitions.
The “SmartFly” Ignition Cutoff provides safety and convenience for your gas powered plane. The unit has two
modules that are connected by a fiber-optic cable. There is no electrical connection between your ignition and your
radio system. The unit recognizes dual-receiver setups and allows your engine to keep running if you lose power to
the receiver the Cutoff is controlled by but your second receiver still has power. You are not forced to land dead-
stick as with other units on the market. The LED on the ignition side is removable and extendable with standard
extensions. The LED is not required for the unit to operate properly.
The SmartFly Ignition cutout and Ignition Reg. is available from your
local hobby shop or see- www.rcworld.com.au
ENGINE BREAK IN and LUBRICANTS
Break in running should be done with regular or premium gas mixed
with a high quality synthetic based two cycle oil at a ratio of 30:1. The
recommended oil is COOL POWER Synthetic Blue. A good quality
petroleum based oil may be used, but we have found the synthetic is
still the best, even for break in purposes.