DAELIM ROADWIN VJ125 - Cylinder Head Disassembly; Cylinder Head Inspection; Valve Springs

9-6
CYLINDER HEAD / VALVES
● Remove the valve spring, valve cotter, retainer, spring
and valve. Using the valve spring compressor.
TOOL : VALVE SPRING COMPRESSOR
● Remove the valve spring seat and valve stem seal.
Remove carbon deposits from the inside of the
combustion chamber.
INSPECTION
● Remove gasket marks from the cylinder head gasket.
● Check the spark plug assembling hole and the valve
seat for cracks.
● Using a square and a feeler gauge, check the cylinder
head distortion.
SERVICE LIMIT : 0.1 mm
VALVE SPRINGS
● Measure the free length of the inner and outer valve
springs.
SERVICE LIMIT : 40.00 mm
DISASSEMBLY
● Loosen the pivot bolt and remove the cam chain
tensioner.
● Remove the carburetor insulator.
● Remove the spark plug from the cylinder head.
● Remove the spark plug cover from the cylinder
head.
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
·To prevent the loss of tension, do not compress the
valve spring more than necessary.
·Mark the disassembled parts so that they can be
reassembled into the original position later.
·Take precautions not to damage the cylinder head
gasket attachment.
·Replace the valve spring with new one if the length of
any one is less than the service limit.