Breaking in a new Nelson
Throw some 60 percent through it ! 1/2 tank and your ready to go....
JK JK JK. Don't do that..
Put a 8.5 pitch prop on it and run it rich (maybe 2000 down from peak)... Don't load the motor for about 15 runs. Leave the 9.0 and 9.25 in the box...
RB