I have just got a Huskee tiller ( 5 hp Briggs ) that was very hard to start, put in new gas ,change the oil, finally got it to run (runs good ) but i could not control the throttle , put on a new governor spring, the one on it was not in good shape..now the throttle will not stay where you set it, it goes right back to the idol position. If some one messed with the governor setting would that put to much tension on the governor spring pulling the throttle back towards the idol position? the engine runs really good as long as you hold the throttle lever with your hand or rev it up and down . Any help would be appreciated.. Thanks