Suzuki GSF650S Service Manual page 73

CYLINDER HEAD REASSEMBLY
• Locate the plate A on the cylinder head of exhaust side.
• Oil each oil seal 1 and press-fit them into position using the
valve guide installer.
• Install each valve spring seat 2 (for intake side) and 3 (for
exhaust side).
) 09916-44310: Valve guide remover/installer
$
Do not reuse the oil seals.
• Insert the valves with their stems coated with molybdenum oil
solution (mixed engine oil/moly paste).
Coat the entire stem making sure that there are no gaps.
$
When inserting each valve, take care not to damage
the lip of the oil seal.
+ 99000-25140: SUZUKI MOLY PASTE
ENGINE 3-37