Ran a smaller prop last week and after take off it would only turn 5000 rpm exactly and 70.5 mph..Thats 12mph slower than normal..Think I may have hit limiter on take off since it slipped so bad..Question is did I put it in guardian mode and if so how do I get it out...Without a DDT
Xb doesn't have a guardian mode. it does have a revlimiter you can hit.
This engine will essentially just go VERY RICH if RPM limiter is exceeded.
I would go back to your original "known" prop, so that you can determine if the problem is "engine related", or "prop induced".
There is nothing that needs to be "reset"- once the CAUSE is corrected, the engine should operate normally.
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