So my boat seems to be running fine with the exception of lots of black smoke this year. It has the 325 EFI Indmar. If you are sitting on the back of the boat while idle you will choke on it. Anyone have an idea of the cause. The boat is still running about 40MPH seems to run\idle OK. I have had a little more vapor lock this year then normal as well if that helps. I replaced the WATER TEMP Sendor Sensor tonight and that didn't seem to help. Maybe a throttle position sensor?? Attached a pic from the back of my boat tonight of how how much black smoke build up is coming out of my exhaust. If anyone has any thoughts please let me know.
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