Ok so a friend of mine bought a boat with a suzuki DF70 outboard motor. Apparently mistake #1 of his would be not taking the boat for a test run, But we launch the boat it cranks perfectly. We pull away from the boat launch throttle up and begin our short trip. As he throttled the boat up it starts to pick up speed, but suddenly motor begins to sputter and sounds of misfiring. I looked the motor over everything seems to be in order. Crank it again and idles perfect give it alittle throttle and seems to run fine but give it more throttle and cuts out. Any ideas that we can check. he said the people he bought it from said that a tuneup was just done on the boat. its fuel injected and over all Im not up to date on outboard motors. Also when we pulled the boat out of the water there is a hose that is barely coming out the lower unit as if another hose connects to it to go to the motor. anyone know what this hose is for?? please any input will help!
