TOHATSU BFT115A Service Manual page 434

CYLINDER HEAD
ASSEMBLY
Note that valve stem seal A (intake side) (1) and B
(exhaust side) (2) are different. Do not confuse them.
Install the valve spring seat.
Apply engine oil to the new valve stem seal (1) inner
surface.
Set the new valve stem seal in the special tool, and
push it straight into the valve guide by hand.
TOOL:
Stem seal driver (2)
• Use the 5.5 mm side of special tool.
Apply molybdenum disulfide oil to the valve stem sliding
surface and insert the valve into the valve guide.
Install the valve spring (1) and valve spring retainer.
• Install the valve spring with its narrow pitched side
(2) facing the valve spring seat and painted side (3)
facing the retainer.
Using the special tools, compress the valve spring and
set the two valve keepers in the groove in the valve
stems securely.
TOOL:
Valve spring compressor (4)
Valve spring compressor
attachment (5)
14-42
SPRING (WHITE)
07PAD-0010000
(1)
07757-0010000
07757-PJ10100
SPRING (BLACK)
(1)
(2)
(1)
(3)
(4)
(5)
(2)
(2)
(2)