User manual CRRCPRO GF50I

[. . . ] Use an approved propeller and spinner 6. Tighten the propeller bolts correctly and check them regularly 9. Properly mount your ignition to avoid overheating 2 10. Use the correct battery and regulator (if applicable) for your ignition 11. [. . . ] Do not operate this engine if you are under the influence of any drugs, alcohol or medication that could affect your ability to use the engine properly. 3 Disclaimer We cannot control how safely our products will be used. And, therefore we do not accept any responsibility for damage, or injury from their usage. Carburetor settings: Before each engine is shipped it has to pass QC and is then test run. We do a basic adjustment of the carburetor needles at that point. Highspeed needle H: 1 1/4 Low speed needle L: 1 1/2 (If don`t has grasped, please do not adjust) Important: Do not remove the carburetor spring as the spring helps keep the carburetor butterfly aligned properly. Merely release the ends of the spring so that it no longer holds the butterfly closed. Engine runs fine on the ground but get very rich on takeoff and in flight This is typically caused by a positive pressure building-up inside the cowl, or the carb diaphragm vent hole being exposed to direct prop blast or ram air. Engine Break In 1. Use a 2 cycle engine oil 2. Use a mixture of 20-1 or even 25-1 3. Use this fuel mixture for approximately 2-3 hours of run time 4. Use a high Octane unleaded fuel (98 Octane is ideal) We suggest starting the break in process of the engine on a test stand; for approximately one hour. This time should be used to get familiar with the engine. Do not run the engine at full throttle for more than ten seconds during this test stand break in. The reason for this is that you are not getting the normal cooling effect that you would if the engine was in a 4 model that was flying. Note: For break-in a smaller propeller is recommended. Important: 1. Remember that when the engine running ever person must stay behind the line of the rotating propeller; never to the side or the front!2. The engine needs 12-20 hours running time for the break in process to be 100% complete. Engine Cooling A proper cooling system is vital for any engine. An air cooled engine requires an appropriately sized air intake. Also to keep this air cooling process working the incoming air must be exhausted. Further, the exhaust air outlet should be four times (4X) the size of the cool air intake. 10 square inches of air intake area would require . 40 square inches of exhaust air outlet area It is up to you to insure that the air flows freely to, over, and away from, the hot cylinder(s) and muffler(s). Please refer to Engine Installation for motor box considerations, and to the following tips on baffling. Note: 1. The DC-CDI is a very accurate electronic equipment, Offers enough fire energy and normal rotational speed of maintaining of engine from it to spark plug 2. We offer the guarantee of one year to this department product (Base on the premise that the appearance has not been damaged ) 3. Please don't try to resolve and repair it, We will not bear any responsibility to dismantle and resolve the consequence that DC-CDI 5 cause without permission. Pilots check list We strongly recommend checking the following agenda for your own safety before starting!Check the propeller bolts for tightness 2. [. . . ] Check to make sure the engine is mounted on a level surface so that the crankcase is free of tension. The engine doesn't reach a normal RPM at full throttle. Check to see if the propeller is too large. Verify that you havethe correct muffler system. [. . . ]