yes, after i installed the roto start the engine started it just reves really high and fast. it was like i was giving it full throttle but the servo was not even moving. i had to adjust the throttle servo to 100% no breaks when i first started breaking it in. is it maybe to do with the idle screw. i tried adjusting it but when i adjust it too much to the closed position it cuts off the engine.. any help would be great