Thanks for the insight. Question for you, how about the tune of the Rotax, IOW’s it has a main & pilot jet, as well as a needle (various needle tapers??) like a traditional motorcycle carb, is there like a tune sheet on the Rotax, if it were say 80 degrees, you would use XX main, xx pilot jet, & xx needle & clip settings etc and be real close to a proper tune? Or am I way off base on this? Again, my reference point is motorcycle motors etc.