Generally, always pay attention to

Generally, always pay attention to absolute cleanliness. Small amount of foreign matter in the oil circuit could cause severe damage or reduce the lifespan ofthe engine essentially.Lubricate all bearings and moving parts in the courseof assembly.All O-rings, oil seals and gaskets have to be renewedat re-assembly.The axial position of crankshaft is predetermined by the two ball bearings at crankshaft center with one each locating ring engaging in groove of crankcase.Fitting and completing of crankshaft assembly generally in reverse sequence to disassembly. Clean and degrease all bearing seats. For correct arrangement of ball bearings, distance rings and oil seals, consult illustrations in the respective spare parts list.The ball bearings are furnished with an O-ring on the circumference, to avoid possible rotation of the outer race in the crankcase. To prevent squeezing of the O-rings when joining the crankcase halves, clearances are provided on jointing face of crankcase