by Jim Lanning
(Lake Tillery, North Carolina)
2012 Mercury 150 on a 2012 Harris Floteboat tritoon. Starts and runs fine up to about 3500 RPMs. Push it to over 4000 RPMs an audible alarm goes off, it seems to lose some power, runs rough -If I slow down to 3000 RPMs all is good. Same thing happened multi times. Engine has 400 hours on it, regularly serviced & no other problems. Looking for suggestions on cause. Thanks
Join in and write your own page! It's easy to do. How? Simply click here to return to Mercury Forum.