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Radiator Hose And Pipe Inspection (coolant Leak, Damage, Installation Condition); Air Suction System; Air Suction System Damage Inspection; Engine Top End - Kawasaki ER-6n Service Manual

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2-20 PERIODIC MAINTENANCE
Periodic Maintenance Procedures
Radiator Hose and Pipe Inspection (coolant leak,
damage, installation condition)
The high pressure inside the radiator hose and pipe can
cause coolant to leak [A] or the hose to burst if the line is
not properly maintained.
Visually inspect the hoses for signs of deterioration.
Squeeze the hoses. A hose should not be hard and
brittle, nor should it be soft or swollen.
Replace the hose if any fraying, cracks [B] or bulges [C]
are noticed.
Check that the hoses are securely connected and clamps
are tightened correctly.
Torque - Radiator Hose Clamp Screws: 2.0 N·m (0.20 kgf·m,
17 in·lb)

Air Suction System

Air Suction System Damage Inspection

Remove the fuel tank (see Fuel Tank Removal in the Fuel
System (DFI) chapter).
Remove the fuel hose (see Fuel Hose Replacement).
Connect:
Fuel Pump Lead Connector [A]
Extension Tube [B]
Special Tool - Extension Tube: 57001-1578
Pull the air switching valve hose [C] out of the air cleaner
housing.
Start the engine and run it at idle speed.
Plug [A] the air switching valve hose end with your finger
and feel vacuum pulsing in the hose.
If there is no vacuum pulsation, check the hose line for
leak. If there is no leak, check the air switching valve
(see Air Switching Valve Unit Test in the Electrical Sys-
tem chapter) or air suction valve (see Air Suction Valve
Inspection in the Engine Top End chapter).

Engine Top End

Valve Clearance Inspection

Valve clearance must be checked and adjusted when
the engine is cold (room temperature).
Remove the cylinder head cover (see Cylinder Head
Cover Removal in the Engine Top End chapter).
Unscrew the upper [A] and lower [B] caps on the clutch
cover.
NOTE

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