Just bought a new 50hp 4 stroke Suzuki outboard engine, when i start it it has to be in low speed or it won't start unlike the other one i have(also new, bought two at the same time from same dealer) and when in idle it revs up by itself without me touching the throttle, anyone have an idea what is wrong and how to fix this? ow and while boating it sometimes just shuts of and i have to start it again. it has a series of beeping sounds i can not figure out what they are and it is making me nuts PLEASE HELP.