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Setting up Rotax 447 Prop and Mixture, how do I do it ???

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JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Fri Jun 22, 2007 9:18 am Post subject: Setting up Rotax 447 Prop and Mixture, how do I do it ???

Here is a question for all you 2 stroke experts.   I have a Rotax 447 that I just bought a new powerfin adjustable prop for.   How do I set it up for EGT's ?   I am going to set the pitch so that it is maximum torque at WOT, not redline the rpm !   What EGT should I be looking for ?   With the old wood prop on there, it ran fine, but it would tend to bog down and die if I let it to idle and increased the throttle rapidly.  Only giving throttle very slowly would save it.   I think that means a rich idle, but im not totally sure.   Any advice on how to set up and jet this engine for the new prop and sea level altitude would be appreciated.



Mike

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