Genesis rc boat

[sharke71]

I have a genesis twin prop and when powered on it goes full yhrotle and i have to switch off

 

[biggman100]

I have a genesis twin prop and when powered on it goes full yhrotle and i have to switch off

With or without the radio on? If the radio is on, check throttle trims. You may also have to recalibrate the throttle settings. If the radio is off, turn it on first, then turn the boat on, and see what it does.