User manual MVVS 50 V1.0 ASSEMBLY EXHAUSTS 3212I

[. . . ] 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 powered by the MVVS 50 engine. Never tamper with the engine construction. Before each flight always check that all the propeller screws are tightened up and in good condition. [. . . ] Gas engines heat up to a much greater degree than methanol ones!Do not forget that the engine needs oxygen from the air to be able to operate. Therefore ensure access of air to the engine intake as well. Caution: intake of warm air from beneath the cowl may cut the engine power output. 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. three blade: These values are only approximate and may vary with the factors described in the previous section, as well as with the type of the exhaust system used. The MVVS 50 has been designed to generate maximum power at 6100­6300 RpM, according to the type of exhaust used. If you wish to utilize the maximum power output, choose a propeller, which allow the engine to reach these revolutions, or slightly lower revolutions (given that the unloading of the propeller depends on the speed of flight) on the ground. We do not recommend using propellers with which the engine reaches more than 7500 RpM on the ground. When fixing the propeller to the engine tighten the central nut and each screw several times over. Finally tighten the washer screws once again in sequence across each other. Exhaust System Use only factory-made exhausts pipes designed for this type of engine, preferably brand-name MVVS engines with which you also get the power output guaranteed. If it does not accelerate, the problem is likely to be caused something other than an incorrect adjustment. In this case go to the section on problem solving. Step III Choke lever Crankcase pressure inlet 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 from fuel starvation. 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. If revolutions seem to drop, open the adjusting needle H by approx. 5-10 min. The new engine comes adjusted to the basic setting. [. . . ] 4) If the engine still would not start, unscrew the plug and check its contacts. Clean any possible petrol moisture (i. e. an indication of engine flooding) and screw it in again. Further starting should only be done with the throttle turned down. [. . . ]