... 1000 / 60Self-priming time (s/4m) : 120<2.> Engine ParameterEngine model : ZW177F (9HP)Engine type : single cylinder,air-cooled ,four stroke ... 100% qualified ,assemble body parts and engine parts, have a special inspection test against engine ,ensure engine’s durablity, stablity ... production and make photoWhen comeplete the production, and have a test of the engine durablity, stablity on test machine ...