The other day I was out on the boat and I heard a warning horn go off when I had been in neutral for a while. The horn was eratic and almost seemed to sound with the motion of the waves. I shut the engine down and then restarted it a few minutes later and it ran fine with no horn so I started heading home. About half way home the engine just went blahhh and died. I figured I cooked the engine but after letting it sit for a few minutes it started right back up and ran fine. To be on the safe side I turned it off and used a kicker engine to get home. Today I went down to the boat checked the plugs and they had the right color so I fired her up and it was running normally. After listening for anything funny for a few minutes I went for a quick spin in the lake and while at full throttle the same thing happened blahhh and it died. Now it won't start back up but will turn over. The other thing I noticed is that shifting has become a lot stiffer. This all happened in under a weeks time and it also started after I switched oil brands in the VRO (I bought the cheap 2 stroke mix at Walmart) and I put some carb cleaner in the gas tank. Any help would be greatly appreciated. Thank you
