Yamaha FT50C - Installing the Valves

62Y5A11
5-32
1
2
3
4
5
6
7
8
9
Installing the valves
1. Install the new valve stem seal
1
to the
valve guide, and then apply engine oil to
the valve guide.
2. Install the valve
2
, spring seat
3
, valve
spring
4
, and spring retainer
5
in the
sequence shown, and then attach the
special service tool.
NOTE:
Face the fine pitch side
a
of the valve spring
toward the spring seat.
3. Compress the valve spring, and then
install the valve cotter
8
using a thin
screwdriver with a small amount of
grease applied to it.
4. Lightly tap the spring retainer with a plas-
tic hammer to set the valve cotter
securely.
Valve spring compressor
6
:
90890-04019
Valve spring compressor attachment
7
:
90890-06320
S62Y5590
E
1
Cylinder head