Hi was wondering if anyone would have any insight as to what could cause this motor to what I think is excessive smoke when started and at low idle say up to around 1000 rpm I also smell gas now and then while at anchor. The engine starts pretty good and runs well while underway. I am not the original owner and am not sure of the maintenance history. I have changed the tstats, the vro pump, plugs. I have cleaned the fuel filter at the engine and the filter that is an oil water separator. I used the Johnson 2 cycle oil and it smoked a little less and have tried the Pennzoil semi synthetic 2 cycle oil and that seemed a little worse. The engine compression is around 110 psi on all six cylinders. I have checked all the fuel hoses for air leaks and have not really found anything. I have read that the decarbonizing with seafoam might help? I have looked for the check valves in the fuel recirculation system but I can't find them and do not see them listed on the parts list or diagrams in the manuals. Is there anything that I may have over looked that maybe contributing to the smoking or is this just the nature of the beast? Thanks Tim
