User manual DESERT AIRCRAFT DA100

[. . . ] Along with excellent fit and finish, precise bearing alignment is insured, which is critical to engine performance. The reliable Desert Aircraft auto advance, electronic ignition system insures easy starting and high performance. This ignition provides a powerful spark, yet is fully shielded to insure protection from R/F noise. Congratulations and thank you from all of us at Desert Aircraft for choosing to own the best in Giant Scale engines! 1 Safety Instructions WARNING! [. . . ] A hot carb can be erratic in flight or make the motor hard to restart. Sometimes placing heat shielding material between the exhaust and carburetor can help. 3 Ignition System · When making electrical connections to the ignition system, use the same gauge wire (or larger) as used on the red and black power leads on the ignition module, all the way to the battery pack. Heavy-duty plugs, as supplied on the ignition or as used on electric cars and planes, are recommended. · Use a high quality switch such as JR's heavy-duty switch. · Isolate the charge circuit from the ignition while charging the batteries. Higher voltage will damage the ignition system and will void the warranty. With this size, the ignition should last longer than your receiver pack will. (A 4. 8 volt pack will read 5. 2 + when fully charged. ) · Unlike some ignitions, the Desert Aircraft ignition is designed to spark only when the prop is flipped at a high speed. If the prop is not turned over at "starting" speed, the ignition will not fire. Unless you are having problems starting the motor, don't bother "testing" the ignition with the plug removed from the cylinder. · When removing the spark plug caps, PULL STRAIGHT out on the caps, not the shielded ignition wires!If the cap seems loose, and is not making a solid metal to metal contact with the spark plug base, contact Desert Aircraft for a replacement. To prevent radio interference, the spark plug caps must have the split retainer ring around the base to insure a tight fit to the spark plugs ­ DON'T FLY WITHOUT THEM!· Protect the shielded plug wires from rubbing against fiberglass or sharp edges of wood or metal. Rubber grommets and plastic "spiral wrap" insulation from automotive or electronic supply stores work well. Holes in the braided shielding can emit R/F noise (i. e: RADIO INTERFERENCE!) · Keep ignition components and wiring separated, as much as possible, from your receiver, receiver battery, servos, wiring and switches. · Don't use metal-to-metal linkages to operate the throttle. Range with one section of the antenna extended should be at least 80 to 100 ft. Check for holes in the braided shielding or loose connections (spark plug caps, connectors and switches). If that doesn't solve the problem, re-locate your ignition and receiver components farther apart. If the problem persists, return the ignition to Desert Aircraft for inspection. [. . . ] Cowled-in carbs have less problems than those exposed to the outside airflow. A small air dam behind the carb inlet can help give a good positive air flow to exposed carb inlets. If any problem persists, please contact DESERT AIRCRAFT 7 DA100 WARRANTY Your DA100 motor and ignition system are covered by a 2 year warranty, starting from the date of purchase. · This warranty covers defects in workmanship and materials only. Disassembly of the motor or ignition system will void the warranty on that item. [. . . ]