If carb. Could be a bad fuel pump
Bad Apex seal
Have the engine and trans mounts checked.
The 88 hp Evinrude, all models, requires a 50:1 ratio.
Supertech st3387a oil filter is used on most gm 3800 motors, olds 88,& 98 buick lesabre, & park avenue
i have an 88 trgal, and it should be under the floor in the trunk
50:1 i have a 1988 johnson 88 spl thats what i run and it runs sweet
your either burning oil in the combustion chamber..or you have a crack somewhere in the block allowing oil and gasoline to combine
What is the firing order on a 1988 Buick Century.
if it won't crank and gas is mixing into the oil you probably have a messed up pistonor gap in the cylinder wall
VERY CAREFULLY
possible leak in heater core.
With a very big hammer