A two-stroke gasoline-fueled Honda motorcycle using HCCI principles finished seventh overall in the 1995 Baja 1000 off-road race.
The two-stroke scooter engine was replaced by a more robust 247 cc four-stroke one.
Myriads of old cars, beat-up buses and superannuated trucks asphyxiate urban areas with their deadly exhaust, while the dirty two-stroke engines that power small vehicles emit ten times as much fine particulate matter as modern cars.
According to the EPA, two-stroke engines - which power a variety of other watercraft as well - are a leading source of toxic water pollution.
Two-wheeler maker TVS Motor Company has said it plans to replace two-stroke motorcycle ‘Max’ with a four-stroke entry-level motorcycle within six months to arrest the erosion in sales.
You're referring here to two-stroke vehicles and we haven't ourselves done very many trials on these but we are very hopeful.
See also the articles on Hemi engines, rotary engines and two-stroke engines.
However, instead of a large battery to power an electric motor, you have a fuel tank and a small piston engine, usually two-stroke , complete with air-filter, carburettor and exhaust pipe.
Mowers powered by two-stroke engines, for which gasoline and oil are mixed prior to ignition, are dirtiest.
The race was split into four categories 50 cc, four-stroke motorcycles up to 180 cc, novice riders on two-stroke bikes and 100 to 135 cc for the experienced.