HYOSUNG 2010 ST7 Service Manual page 61

Loosen the cylinder head base bolt.
Loosen the six cylinder head bolts.
NOTE
When loosening the cylinder head bolts,
loosen each bolt little by little diagonally.
Remove the chain guide NO.1 and cylinder head.
Remove the tappet and the shim.
CAUTION
D r a w o u t t h e t a p p e t a n d s h i m w i t h t h e
strong magnet not to be scratched.
ENGINE 3-14