... ) Special pressure balance by pass prevent lube oil into inside 2) Efficiency much better 3) Patented infiltrated ceramic piston ring without ... optimum heat transfer Specifications: 1) Number of cylinders: 4, 4 2) Swept volume: 555, 650cm3 3) Theoretical displacement: 1,450rpm/h ... lubrication: zahnrad pumpe /gear pump 6) Oil charge: 2.0, 2.0L 7) Weight: 32, 31kg 8) Operative range: a) Max. speed, n ...