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Desert Aircraft DA85 Owner's Manual

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7-07

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Summary of Contents for Desert Aircraft DA85

  • Page 1 ’ ’ 7-07...
  • Page 2 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 this product.

  • Page 3: Mounting The Engine

    Mounting the Engine The DA85 features a rear induction carburetor that is intended to protrude or breathe through the fire wall. While mounting and initial setup of the engine and with the carb through the firewall can take some extra work, this carburetor location provides a stable air environment for consistent high performance, while greatly reducing carburetor noise.

  • Page 4: Ignition System

    Don’t use metal-to-metal linkages to operate the throttle or choke. Timing is set at the factory and should not need adjustment. Contact Desert Aircraft if you have any questions regarding timing. Only use NGK CM-6 spark plugs. Other plugs may not fit the plug caps firmly and cause poor...

  • Page 5: Fuel And Oil Mix

    After the break-in process, we recommend a high quality synthetic oil. As for brand of oil, there are many good ones on the market. Some oils, and their mix ratios, that Desert Aircraft recommends are: Amsoil Saber Professional (100 to 1), Red-line Two Stroke Racing Oil (40 to 1), Bel-Ray H1-R (50 to 1).
  • Page 6 Recommended Props Always tighten prop bolts and inspect your prop and spinner before each flight! Avoid large/heavy load props during the break-in period. Regardless of size or brand, it is important to not overload the engine during break-in. Check the rpm on the first run and make sure it is around 6,200 rpm or higher.

  • Page 7: Needle Adjustments

    RPM range. Adjusting the low needle can have a slight effect on the higher RPM range. While it is possible for the DA85 to idle below 1,000 RPM, an idle setting around 1,500 RPM insures a more reliable idle and throttle transition. Prop size has a big effect on the idle characteristics.

  • Page 8: Troubleshooting

    Trouble Shooting Motor won’t start: Possibly flooded: The DA85 normally only needs to be choked for the first start of the day. Over choking can cause flooding. Check battery voltage (should be at least 5.0+ volts) and all ignition connections, wiring, and switches.

  • Page 9: Maintenance

    If tightening the appropriate screws does not cure the problem, contact Desert Aircraft. After prolonged use, carbon deposits can build up on top of the piston and on the combustion dome of the cylinder.
  • Page 10 DA 8 5 WA RRA N T Y Your DA85 engine and ignition system are covered with a 2 year warranty by Desert Aircraft, starting from the date of purchase. This warranty covers defects in workmanship and materials only. Being a high performance 2 stroke engine, certain parts can wear quickly.
  • Page 11 Address________________________________________________________ City______________________ State______ Zip_________ Country________ Phone #_________________ Cell #__________________ Email _________________________ Items in Box: DA50 Serial #__________ DA85 Serial #__________DA100 Serial #__________ DA150Serial #__________ Single Ignition Serial # ________ Twin Ignition Serial # ________ Prop Bolts? __________ Prop washer? ________...

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