Moshe Ferera Posted May 27, 2011 Share Posted May 27, 2011 I have a problem with the engine ROTAX 912 when I start running to takeoff I have drop the fall of 300 rpm. Can someone give me an idea how to solve the problem? Link to comment Share on other sites More sharing options...
facthunter Posted May 28, 2011 Share Posted May 28, 2011 Are you still reaching the correct RPM for take-off? Nev Link to comment Share on other sites More sharing options...
Moshe Ferera Posted May 31, 2011 Author Share Posted May 31, 2011 Are you still reaching the correct RPM for take-off? Nev Dear friends .. I found the problem ..! After investigations of carburator not found anything I concluded that maybe exhaust is the problem .. dismantled the exhaust and I found parts, Parts I found reduced the amount of gases emitted from the engine strangled and drop the rpm. I thank you all for the good will .. maybe it will help future similar problems best regards. Ferera Moshe. Link to comment Share on other sites More sharing options...
pudestcon Posted June 1, 2011 Share Posted June 1, 2011 Dear friends .. I found the problem ..! After investigations of carburator not found anything I concluded that maybe exhaust is the problem .. dismantled the exhaust and I found parts, Parts I found reduced the amount of gases emitted from the engine strangled and drop the rpm. I thank you all for the good will .. maybe it will help future similar problems best regards. Ferera Moshe. Parts??? What parts Ferera? Pud Link to comment Share on other sites More sharing options...
Moshe Ferera Posted June 1, 2011 Author Share Posted June 1, 2011 Dear Pud. Exhaust is built inside the welded parts and partitions these parts .. just probably shaking apart over time and partly blocked the gas port .. would recommend that all 200 hours might have to dismantle the exhaust and hear if there are no parts released inside. Regards. Ferera Moshe. Link to comment Share on other sites More sharing options...
facthunter Posted June 2, 2011 Share Posted June 2, 2011 It happens with lots of exhaust systems that have done a bit of work. Baffles can work free or welds crack and the loose baffle, part blocks the exhaust exit and the engine runs hotter and loses power as a result of the back pressure. Nev Link to comment Share on other sites More sharing options...
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