Check-Up & Adjustment Of Air Valve Gap; Car Wash - Serpento DEFENDER Manual De Usuario Y Mantenimiento

Check-up & Adjustment of Air Valve Gap
-Noise will stem from too big gap of the air valve. However if there is too small gap or even no gap at all, closing-of the valve will be hindered,
which will cause bum of the valve and output drop. Therefore, the air valve gap must be checked periodically.
The gap of the air valve shout(' be inspected and adjusted with a cold engine by the following procedures:
(1) Remove the caps of the central hole' and the top hole (the ignition timing observation hole) in the left crankcase coven
(2) Remove the caps of the.two air valves on the cylinder head.
(3) Insert the "T" key into the central hole of the crankcase cover, jam it against the nut of the flying wheel and then turn the flying wheel
clockwise until the engraved "T" mark on the flying wheel aligns'with the engraved line on the top of the crankcase cover. Swing the rocking arm
slightly. A loose rocking arm (which indicates the existence of clearance) shows that the piston is in the upper stop position of the compressing
stroke, where the valve can be adjusted. A tight rocking arm means that the piston is in the lower stop position of the compressing stroke. In
this case, continuously turn the 7" key clockwise for 360 degrees until the alignment .of those engraved marks, where the valve can be adjusted.
Afterwards, check the valve gap by inserting a feeler in between the valve adjusting screw and the end of the valve.
The specified air valve gap: 0.05mm for the intake and exhaust valves respectively.

Car wash

Cleaning the vehicle regularly can slow down the color fading of its body and make it easier to check if there is any damage and any oil leakage
with it.
Caution:
Washing the motorcycle with over-pressurized water may cause damage to some of its components. Therefore, do not jet over-pressurized
water directly on to the following parts:
— Wheel hub
— Exhaust pipe
— Fuel tank and lower portion of cushion
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