User manual MVVS 116 V1.1 ASSEMBLY EXHAUSTS 3207I-3208I-3210

[. . . ] ** Power output varies with the exhaust used. The value given in the table stands for the maximum available power output. Safety precautions Never use the engine for any manned vehicles. When operating model planes, always follow the rules and laws in effect in your country. The manufacturer declines all responsibility for all damages arising from the operation of models and other appliances driven by MVVS 116cc engine. [. . . ] Caution: intake of warm air from beneath the cowl may cut the engine power output. For fuel supply use the hose delivered only, this diameter ensure the sufficient fuel supply in each turn and minimize the flow resistance. Use of the smaller hose can cause engine turn off by the turning with high G-forces. When mounting the engine in the model use seals to protect all openings and prevent the pollution of the engine's inside with sawdust, residual abrasives etc. Make sure that the inside of the fuselage is clean and that all parts are tighten in place and cannot be sucked inside the engine. Selecting a suitable propeller It is usually the case that propellers of the same dimensions coming from different manufacturers are not the same. Oftentimes not even propellers of the same dimensions produced by a same manufacturer are not the same. The engine power is best utilized when the propeller dynamics curve and engine power curve (revolutions/power output) intersect in the area of the engine top power output. Unfortunately, no propeller manufacturer provides this information. Engine power output is also a variable quality. It depends above all on the silencer used and can considerably vary. The situation is further complicated by environmental parameters (temperature and atmospheric pressure in particular): low temperature and high pressure increase propellers' input requirements by 20% in comparison with input at hot weather. If the engine runs correctly go to Step III. If it continues to malaccelerate, open the needle by another 10 min. If it keeps malaccelerate, the defect is likely to lie elsewhere than in incorrect adjustment. In such a case, go to the section on problem solving. Step III - If the engine accelerates correctly, according to the above test, set it at idle speed and accelerate to full speed. If the engine functions correctly, go to Step IV. If it cuts out, open the L needle by 5-10 min more. - If the engine does not respond to acceleration fast enough keep closing the L needle until the engine starts to cut out in response to gas. At that point reopen the L nozzle by 5-10 min. Step IV - If the engine reacts correctly set it at full speed. If revolutions do not drop, the engine has been adjusted successfully. [. . . ] Unless the spark plug is not inserted in plug socket, never turn the engine with ignition turned on. 1) Make sure that the ignition is switched off, the choke valve is closed and the throttle valve is about half opened. Then give the engine 3-4 turns, provided that carburetor is not overflowing. If it is overflowing, give the engine 1-2 turns only. [. . . ]