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EFI fogging concoction recipe?

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  • #16
    It is surprising the difference in the fuel vs 2 stroke oil mix between Merc and VP. 50:1 is like 2 %, Merc is 5x as rich on the oil? Still have a carb so still do it the old fashioned way. My 4.3 will not stall unless I use 2 cans simultaneously. However judging by the amount of condensation I see on the outside of the engine in winter I think fogging is definitely worth doing...I wonder how many cases of stuck valves were caused by not fogging in a damp winter climate....
    1988 Four Winns 200 Horizon
    4.3 OMC Cobra

    98 Jeep Grand Cherokee 4.0 Selectrac
    07 Jeep Grand Cherokee Limited 5.7 Quadradrive II

    "While air doesn't freeze....rust never sleeps"

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    • #17
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      Must admit, for the last 20 odd years of owning gm engines, I never fogged them and they were fine. I occasionally put a shot of 2 stroke down the plug holes of my old carb variants.
      But...more recently I have been following the manual on my merc mpi and running 2 stroke through it. I never bother with the remote tank hassle. Just run it really low in tank and mix some in with that. Run it for a while and put the boat on trailer for winter. No problems so far.

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