Yamaha F4B Service Manual

7-29
POWR
Power unit
Removing the cylinder head
1. Remove the spark plug a, thermostat
cover b, gasket c, thermostat d, and
thermostat cover anode e.
2. Loosen the bolts f in the order a, b,
and so on, and then remove the cylinder
head cover g and gasket h.
3. Loosen the valve adjusting locknuts i,
and then remove the rocker arm pivots j
and rocker arms k.
4. Loosen the cylinder head bolts l in the
order a, b, and so on, and then remove
the cylinder head m, gasket n, and push
rods o. NOTICE: Do not scratch or
damage the mating surfaces of the
cylinder head and cylinder block.
Disassembling the cylinder head
1. Remove the push rod guide a.
2. Remove the intake and exhaust valves.
a
b
c
d
e
a
b
c
d
e
f
f
g
h
f
i
i
j
j
k
k
a
b
c
d
l
l
l
l
m
n
o
o
a

Yamaha F4B Specifications

General

Brand	Yamaha
Model	F4B
Category	Outboard Motor
Language	English