I will guess it is a V-twin and that would make it about 2 qts. depending of if it has an oil filter and which one.
it will hold about a half quart of oil
64 oz per the manual.
20 oz. if fully drained, 16 oz. will usually be used in an oil change.
1.5 qts of Oil
Most single cylinder Briggs engines hold 40 oz of oil. SAE-30 type oil
Too much engine oil could be the problem.
1ml
how many horse is a 190cc briggs engine
Click the link and find your engine for the exact capacity.
The 15.5 Briggs does not have an oil filter.
48 oz oil capacity
18 ounces