Hibrass,

Here is part of the paragraph partaining to voltage from the DL50 manual.



IGNITION SYSTEM

The DL50 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.


If you check here, from the Rcex site, it is telling you that you can use up to 7 volts. This is listed under input voltage in the specifications. It also lists the type of resistor to use to drop voltage.



http://www.rcaerobats.net/GAS_ENGINE...onInfo-v.2.pdf

Greg