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Senior Member
Re: Precision tuning the Rotax 912 UL/ULS
Congrats on getting back in the air and the AF ratios you have been able to set up. As soon as my new muffler is received I hope to do the same. Because I plan to follow in your foot steps, I do have to ask a question that is based more on my lack of knowledge about Rotax engines than anything else. Assuming that both of your reported AFRs are at cruise RPMs, why are you not pleased with 14.1:1 at 4800 rpm? You are still a tad rich of stoichiometric and (I'm assuming) not pulling so much power that additional temperature or timing control is needed. Thanks.
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