Hello all, this is my first post.<br />I have a Suzuki DF50 of appr. 1year old. Maybe 100 hours total. I take very good care of the engine. I don't use it every week but let it run (water hose connected) at least once a week.Fuel I keep fresh. I did add gas stabilizer from Cyclo" to the fuel last month (seasonal storage amount, as discribed on the container)to be sure it would stay fresh.<br />Last time i took the boat (13 ft bostonwhaler sport) out the engine started fine, ran fine in warmup but hessitated and almost stalled when i opened the throttle. With throttle half to three quarters open it would run as if on 2 cilinders and occasionally pick up speed for a few seconds and pur like a kitten,like it normally does. Then fall back and almost stall. I would try this a few times and at the same time pump the gas to the engine with the fuel line handpump to see if it was lacking fuel.No difference. Now I do always spray the entire engine (under the cowling) with silicone spray (generously) after each boating trip and suspected that maybe to much silicone could have fouled electrical contacts to the computer and or the injectors and ignition coil power supply. I've cleaned all these connections with contact cleaner and see no difference.<br />The engine check lamp does not indicate anything either.<br />know of anything else that could be the cause?<br /><br />greetings,<br /><br />Robert