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RotaxEngines-List Re: rough running at 3400 RPM and above

 
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dougsnash



Joined: 14 Apr 2008
Posts: 281
PostPosted: Wed Aug 20, 2014 3:29 am    Post subject: RotaxEngines-List Re: rough running at 3400 RPM and above Reply with quote
Kyle, I'm not sure if I'm the Doug you are referring to or not but I had a similar issue with my engine when I first started running it on my plane and the issue was the chokes were not closed completely. At higher RPM, say 3400 RPM and higher, the enrichener/choke circuit acts like an airbleed into the intake system which causes a lean stumble (thus why carb heat helps). As for the rich indications on the plugs, I have no idea but first step is make sure your enricher circuit is absolutely closed after the engine starts.
Doug M
CH-701/ Rotax 912UL




Time: 10:08:05 AM PST US
Subject: RotaxEngines-List: Re: rough running at 3400 RPM and above
From: "kyle Ponsford" <wild_kyle(at)hotmail.com (wild_kyle(at)hotmail.com)>
Doug,
Your descriptions read as if I had written them myself, therefore I was very eager
to read to the bottom and see your eventual solution, but I found... NOTHING!
Did you ever solve your problem? I have not.




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