User manual MVVS 45 V1.0 ASSEMBLY EXHAUSTS 3212I

[. . . ] The manufacturer declines all responsibility for all damages arising from the operation of models and other appliances droved by MVVS 80 engine. Never tamper with the engine construction. Before each flight check that all the propeller screws are tightened up and in good condition. If you use a spinner, check that it is tightened up, too. [. . . ] Make sure to secure the screws against loosening and regularly check that they are tightened up and in good condition. Since air is used to cool the engine, sufficient air circulation under the cowl must be ensured. Never forget about a hot air outlet ­ which must be bigger than the intake. 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. Note: Attach a hose to the airpressure inlet on the carburetor and terminate it outside the cowl. 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. 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. MVVS 80 has been designed to generate maximum power at 6000 ­ 6500 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 the unloading of the propeller depending on the speed of flight) on the ground. In this 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 Crankcase pressure inlet Throttle lever Fuel inlet 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. The engine must be stopped while you adjust the carburetor in order to prevent injury by the propeller. Never close the choke valve completely when the engine is operating! [. . . ] Remove the rear cover by pulling it out of the crankcase ­ never use a hammer or any other similar tool. The rear cover is sealed in the crankcase with two sealing rings ­ therefore more strength is needed, however, it must always be pull only!Make sure you disassemble the engine in a clean environment!Position the rear cover as desired, carefully insert it in the crankcase and tighten the screws. [. . . ]