I have one of these and can't seem to get the power or rpm out of it I hear others are getting. The engine is new and has about a 1/4 of a gallon thru it, I had a 22x10 on it as the manual says that is the prop for break in and could only get 5800 rpm. I then put a Vess 23A on it and now can get 6100-6200 rpm out of it but I hear others are getting 6500-7K even when new? I have played with the adjustments and they seem correct, I also was using 25:1 oil as thats what the manual calls for but now have moved to around 35:1.
Other than not enough power/rpm it seems to run OK.
Any suggestions?