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If you mean who made the first combustion engine, i have no idea, but the first Four-Stroke engine was made by Nikolaus Otto.
Dietroit Diesel
polaris
There have been many examples of a 350cc two stroke engine made over the years. Kawasaki and Yamaha motorcycles used this type of engine as well as many other manufacturers.
250x is a 4 stroke. The only 2 strokes Honda ever made were the 250R ATC and ATV.
it varies a lot
Briggs and Stratton made almost exclusively four stroke engines. There is no fuel oil mixture for a four stroke engine. Are you sure you have a two stroke engine by Briggs and Stratto? rhg
stuffing
No, the Dr 100 is a 4 stroke. Suzuki did made a 2 stroke dirt bike called the Ds80 with oil injection bottle under the seat.
Fabric and soft stuffing
Stuffing or down feathers.
Stuffing is made primarily from stale bread, so it would be a carbohydrate (bread/grains/potatoes/etc group). It is made out of bread usually with celery and onions.