13Engine rpm ChangeThe engine rpm shall not be kept constantly,which needs to be changed always so thatall the components of engine can bearpressure. However, all the component partsof the engine will be cooled down when thepressure is released, which may help fit theparts. At the time of trial run, it is importantsome forces applied on the engine partsmay ensure fit, but overloading is notallowed on the engine.Avoidance shall be made at certain lowrpmIf the engine runs at certain low rpm (lowload), it only can be smoothly ground insteadof well run - in. As long as the maximum limitused is not exceeded, the engine may beaccelerated at any shift. However, within theinitial 1600km, the maximum acceleration isnot allowed.First Lubricating before DrivingAfter starting the engine at hot and coldstatus and before not applied with load orrunning, the engine shall sufficiently run at idlespeed so that lube oil may flow through the keycomponents of the engine. Make maintenanceand servicing for the first time.It is the most important to make maintenanceand repair occurred within the initial driving1000km. During run - in, all the engine partshave been run - in and other parts has beenengaged. So, all the components shall beproperly adjusted and all the fasteners must befastened. Replace the contaminated lube oil.Make servicing immediately when themotorcycle has driven for 1000km to ensurelonger service life and better performance of theengine.Caution:Maintenance at 1000km driving distanceshall be made in accordance with“Troubleshooting”, of which “Caution”,“Warning” shall specially be paid.Examination before DrivingCarefully examine the following items before driving, of which significance must not be