Desert Aircraft DA85 Owner'S Manual Download | Manualshive

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Summary of Contents for DA85

Page 1: ...O Ow w n n e e r r s s M M a a n n u u a a l l 7 07 ...

Page 2: ...time for a variety of reasons Do not fly your plane in a way that damage or harm will result if the motor stops running Inspect motor mount bolts and firewall integrity before operating the motor Anyone in the immediate area of the motor should use eye protection during operation of the motor Keep spectators at least 30 feet away when operating the motor Turn off the motor before making any adjust...

Page 3: ...w into the carburetor If the carburetor is located in front of a former or firewall be sure there is at least 1 25mm of clearance from the carburetor inlet If there is less than 1 clearance make a hole larger than the carburetor inlet diameter in the former or firewall The throttle arm is tapped for a 2 56 SAE ball link If you wish the throttle return spring can be released or cut on one end but n...

Page 4: ...lt regulator on packs rated above 6 0 volts When connecting the red pick up sensor to the ignition module make sure that the polarity of the wires entering the connectors is correct Brown to brown orange to orange 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 n...

Page 5: ...unt type outlets We recommend filtering your fuel between your fuel container and your plane s fuel tank A high flow filter or clunk filter between the tank and motor is also a good idea Make sure the plane s tank is well vented and the fuel clunk moves freely Use of any other fuel or additives such as nitro formulas aviation gas white gas etc can harm the motor and void the warranty Do not use an...

Page 6: ...rop and engine noise but less power A 3 blade prop just over 6 000 RPM can be very quiet Smaller diameter props less tip speed and more pitch more load less rpm will reduce noise 3 blade props normally have less diameter and more load from the pitch and extra blade This normally makes them the quietest props 2 blade props above 6 400 rpm will develop a lot of power You may find that you prefer the...

Page 7: ...t to the rear of the engine is the High End needle The needle closest to the engine is the Low End needle Turning the needles clockwise leans the fuel mixture Turning the needles counter clockwise richens the fuel mixture Settings will vary with altitude temperature humidity fuel carburetor variances etc A general starting point is 1 1 2 open on the Low needle 1 1 2 open on the High needle Adjust ...

Page 8: ... in air pressure and air flow in the cowl when the plane is flying the needles may need to be adjusted to deal with in flight performance not just the way the engine runs on the ground This may take several ground adjustments and flight tests Make sure carburetor has not come loose causing an air leak in the carburetor mounting area Look for fuel seepage If your radio has a Battery Failsafe option...

Page 9: ... M5 threaded hole Do not substitute 10 32 screws for any other screws on the engine Inspect the engine periodically for any signs of fuel seepage This can indicate an air leak which can create a lean fuel air ratio which in turn can cause erratic running and engine damage If tightening the appropriate screws does not cure the problem contact Desert Aircraft After prolonged use carbon deposits can ...

Page 10: ...ed by improper handling operation modifications or maintenance Damage caused by a crash Damage caused by using improper fuel or additives Damage incurred during transit to Desert Aircraft pack carefully Shipping expenses to and from Desert Aircraft for warranty service DESERT AIRCRAFT WILL NOT SHIP ANY WARRANTY REPLACEMENT ITEMS UNTIL DEFECTIVE ITEMS IN QUESTION ARE RECEIVED BY DESERT AIRCRAFT Ple...

Page 11: ...___ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ _______________________________...

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