Installing The Valves - Yamaha F2.5A Service Manual

POWR

Installing the valves

1. Install the new stem seal 1 to the valve
guide.
2. Install the valve 2, valve spring 3, and
valve spring retainer 4 in the sequence
shown, and then attach the special ser-
vice tool.
6
5
NOTE:
The valve spring can be installed in any
direction.
Valve spring compressor 5:
90890-04019
Valve spring compressor
attachment 6:
90890-06320
5-21
Power unit
1
E
S69M5440
4
3
E
2
S69M5450
3. Compress the valve spring, and then
install the valve cotter 7 using a thin
screwdriver with a small amount of
grease applied to it.
7
4. Lightly tap the valve spring retainer with
a plastic hammer to set the valve cotter
securely.
S69M5460
S69M5470
69M3E11