Well, it's a very complex and time consuming procedure, where you take any load off the motor and run the thing WOT and measure the currents using an eagletree or similar unit. Now, this is only for the non faint of heart and experienced RCist.
“The modern astrophysical concept that ascribes the sun’s energy to thermonuclear reactions deep in the solar interior is contradicted by nearly every observable aspect of the sun.” —Ralph E. Juergens