Checking The Cylinder Head Anode; Assembling The Cylinder Head - Yamaha F200B Service Manual

POWR
Valve lapper 1: 90890-04101
8. Recheck the valve seat contact area of
the valve. See "Checking the valve seat"
(7-64).

Checking the cylinder head anode

1. Check the anodes. Replace if eroded.
Clean if there is grease, oil, or scales.
NOTICE: Do not apply grease, oil, or
paint to the anodes.

Assembling the cylinder head

Do not reuse a valve seal, always replace
it with a new one.
1. Install a new valve seal 1 onto the valve
guide.
2. Install the valve 2, valve spring seat 3,
valve spring 4, and valve spring retainer
5 in this order, and then install the spe-
cial service tools 6 and 7.
7-67
Power unit
1
1
6
7
Valve spring compressor 6: 90890-04019
Valve spring compressor attachment 7:
90890-06320
3. Compress the valve spring, and then
install the valve cotters 8.
8
4. Tap the valve spring retainer lightly using
a plastic hammer to set the valve cotters
8 securely.
5
4
3
2