Who's our resident outboard motor guy?

When the oil injection is eliminated, and the fuel/oil mix is used, I believe it's recommended you richen up the jets to accommodate the mixture.
They often run hot/lean if you don't, with piston damage the result.
Usually #3. those 3 cyl were a pain.
Pay the price for new injection, or Suzuki it.
Have a friend with a fish camp, he has 2 Mercs remaining, rest are all Suzuki, he loves them.
jmo