2011 MerCruiser 4.3 TKS A 1.7R
Model Number: 4-2110G5U
Serial Number: 1A636075
I have owned this brand new boat since April of this year and have only had it on the water 3 times. The first two times, I had absolutely no problems at all. Between the 2nd and 3rd time, however, I added new fuel and now the engine is stalling out. I added clean fuel purchased at a local major chain gas station while the boat was on the trailer using brand new, clean gas cans. Without realizing there was a problem, I launched the boat in order to dock it for the holiday week-end. The motor fired up, no problem, but stalled immediately when trying to put it in gear and stalled five times while trying to get it to the dock. Now that it is docked, again the engine starts OK, but will stall immediately when idling in neutral and applying the throttle. It will also stall out eventually if I just let it run without applying the throttle, after only 5 minutes or so.
Obviously, the only thing that has changed is adding the fuel. I removed the fuel/water separator and checked the fuel in it and it was an extremely unusual color - a bright orange color, almost rust-like. There was no evidence of water being separated from the fuel - just the unusual color and some very minor debris. When I added the fuel it was filling at a very slow rate and the fuel would not go down after adding around 4 gallons. I moved the vent line around and the fuel then went into the tank. I am concerned that the fuel may have backed up into the vent line.
I'm brand new to boating so please bear with me. Thus far, it's been a frustrating experience, as you can imagine. Thanks in advance for any help.