User manual DESERT AIRCRAFT DA50R

[. . . ] Ow n e r 's M a n u a l 1 Safety Instructions WARNING!This motor can cause severe harm to you, and/or others, if misused or if these safety precautions and instructions are not observed. Desert Aircraft is not responsible for any loss, injury or damage resulting from the miss-use of its products. You alone are responsible for the safe operation of your motor. Do not operate the motor if you do not want to be completely responsible for any damage or injury incurred or caused during its operation. [. . . ] If the prop is not turned over at "starting" speed, the ignition will not fire. This helps to prevent the motor from firing accidentally. 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 their base ­ DON'T FLY WITHOUT THEM!Protect the shielded plug wires from rubbing against fiberglass or sharp edged of wood or metal!Rubber grommets and plastic "spiral wrap" insulation from automotive or electronic supply stores work well to protect your braided shielding. Holes in the braided shielding can emit R/F noise (i. e: RADIO INTERFERENCE!) Damaged plug wires are not replaceable and may require the ignition to be replaced!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. Always perform a radio range check before flying. Range with one section of the antenna extended should be at least 80 to 100 ft. with the plane on the ground and the motor running. If there are "glitches", DON'T FLY!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. Timing is set at the factory and should not need adjustment. Contact Desert Aircraft if you have any questions regarding timing. Other plugs may not fit the plug caps firmly. Plug gap is . 018" to . 020" (. 45mm to . 50mm) 4 Fuel and Oil Mix Low to Mid octane pump gas is recommended. [. . . ] The ignition won't fire at low speed. o If a lot of fuel drips from the carburetor, the engine may be flooded. If so, remove and dry spark plug, or replace it. Try starting again without using the choke. Motor runs poorly: o The engine might be too rich. [. . . ]