HYOSUNG COMET 125 Service Manual page 48

3-11 ENGINE
Remove the tappet and the shim.
CAUTION
Draw out the tappet and shim with the strong
magnet not to be scratched.
CAUTION
The tappet and shim should be lined so that each
will be restored to the original position during
reassembly.
Compress the valve spring by using the special tool.
Valve spring compressor : 09916-14510
Valve spring compressor attachment
: 09916H35C00
Valve spring compressor attachment
: 09916H5100
Take out the valve cotter from the valve stem.
Remove the valve spring retainer.
Pull out valve from the other side.