Lifan, lf160f-ahq, 4mhp; 6:1 gear reduction – 0.75in horizontal keyway engine the lf160f-ahq engine is 118cc – 4hp recoil start engine with 6:1 gear reduction that comes with a low oil shutdown for protection. The design features a universal mounting bolt pattern. It also has a in horizontal output shaft. It is epa approved. This engine is built with automotive grade parts. The warranty is 3 years for residential and 1 year commercial use. Parts to maintain and repair lifan engines and equipment are available upon special request. features: industrial grade ohv gasoline engine 4-stroke single cylinder 4 maximum horse power / 118cc displacement manual recoil start 0.66 gallon fuel capacity 0.75in keyway output shaft 6:1 gear reduction low oil shutdown protection