User manual YS DZ170CDI

[. . . ] Then the needle valve should be opened approximately 1/4 turns from highest RPM. Clearance adjustment should be done when the engine is cool. The proper clearance should be set at 0mm (0. 000") to 0. 1mm (0. 004"). The adjustment is achieved by loosening the lock nut see "Fig. 2" and turning the adjustment screw see "Fig. 2". [. . . ] Ignition system develops extreme high voltage so please careful when filter screens in place. Because of this pomp system, fuel level of the tank will not influence of engine runs, you can place fuel tank near C. G. Please consider avoid cutting ignition wires by vibration when you do wir ing. Use plastic "spiral wrap" supplied the engine set to wrap the shielded plug wire and timing censor wire. Please place receiver and ignition box about 15cm apart. Some of the ra dio needs to be apart them over 30cm to avoid radio interference. Wrap the ignition box in form rubber or other vibration absorbing material, same manner of receiver, and fasten. Do not use bracket holes on the box for fasten directory to the airplane. Cleaning This engine is using silicon gaskets, "O" rings etc. Please use methanol or model engine fuel for cleaning. Do not use Kerosene, Gasoline, Machine oil, Automobile parts cleaner or house hold lubricants to clean. It will harm silicon parts. Battery for CDI Unit Use 4. 8V Ni-Cd or Ni-MH batteries capacity around 700mAh. You can get over 5 (five) 10 minutes flights. If you use Li-ion or Li-Po battery, use voltage regulator to reduce voltage under 6V. Do not use over 6V even short period of time. We are not recommended to share with receiver battery for CDI power supply. Engine Cooling Be sure to secure cooling air for engine cooling. If it is not enough cooling air for the engine causes heat up the regulator and carburetor to make vaporized or percolates the fuel and will get deteriorations of engine performance or stop the engine. Please read carefully below for provision. Please open air intakes and outlets as big as possible. Take off cowling when you make long engine adjustment included idle adjustment. When air temperature is high, it may heat ups the regulator and carburetor to make vaporized or percolate the fuel even with out cowl ing. If it happens, wait till engine well cooling down before you restart and adjust. 9. Sparking noise may cause shorten the range of receiver. [. . . ] Tappet clearance is preset at the factory. Clearance adjustment may need after first one hour running time due to initial wear. After first adjustment, clearance should be checked as normal maintenance for every 10 hours running for maintain maximum perfor mance. Parts and Repair Service If you can not find repair parts form hobby shops, you can order parts direct to our factory. We also do repair your engine at our factory. [. . . ]