Got an inverted Evo in my Cermark Bobcat...actually 2...1st was an Alpha 45 and now a 46NT.
It runs great...no problems...just lean out the low speed a little until it will idle and trasition without burbling. Use a good plug, like the Hangar 9 Super plug that it comes with, or a hotter 4 stroke plug.

The only time I have a wet plug, is after storage (over-night, or a few weeks, whatever ) and it loads with after-run oil. 1st start of the day, I pull the plug out and motor it over w/ the elec. starter for a few seconds at full throttle to clear it out.

The idle and transition are great, it just took some fine tuning to get it just right.