Originally Posted by Theon
Less oil means more fuel which means engine runs rich.
Engine should be tuned to a certain oil mix.
I just swapped my Softail from 25 to 1 to 40 to 1 and now it 4 strokes and needs a re tune.
Ditto and is one reason guys, like me, who run our mix @ 100:1 need to go small on our main jets. Less oil to gasoline and you'll have to go leaner on the fuel to air mix.
It's a juggling act but it can be done with some experimentation.
As for lubrication, sufficient or lack of, you'll need to follow the recommendation of the oil manufacturer. There is no benefit to using more oil than they say to use. In other words if the oil maker says 32:1, then adding more oil is not really going to help. It might even cause problems like fouled spark plugs or clogged exhaust systems plus the mess associated with an oil rich mixture.