Hi everyone, really need some help !!!!!! I have a suzuki DT 85 HP 2 stroke outboard, believed to be around 1986, runs great for about 10 minutes at full throttle lovely and then once descellerated will not go again, idles but very roughly with a squeaky backfire. Have changed CDI unit, changed plugs, serviced carbaretta's, checked pump and fuel lines, used auxilary tank but won't go again until totally cooled down, pumping water fine but out of idea's now PLEASE HELP !!!!!!