Removing The Power Unit - Yamaha F4B Service Manual

Removing the power unit

Cover the fuel components using a rag to
prevent fuel from spilling out.
Do not turn the flywheel magnet counter-
clockwise. Otherwise, the water pump
impeller could be damaged.
1. Drain the engine oil. See step 4 in
"Changing the engine oil" (10-8).
2. Drain the fuel.
3. Remove the manual
"Removing the manual starter" (7-7).
4. Remove the fuel tank. See step 3 in
"Removing the fuel tank" (6-5).
5. Remove the holder
disconnect the choke cable b.
6. Disconnect the throttle cables c.
a
b
7. Slide the clamp d away from the
carburetor e, slide the clamp f away
from the fuel pump g, and then
disconnect the fuel hoses h and i.
e
h
d
starter. See
a,
and then
c
g
i
f
Power unit assembly
8. Disconnect the CDI unit coupler a, CDI
unit ground lead b, engine shut-off
switch ground lead c, and ground lead
j.
a
j
9. Remove the plastic tie k.
10. Loosen the screw l, and then remove
the cap m and throttle link rod n.
11. Remove the holder o, throttle cam p,
and bracket q, and then remove the
engine shut-off switch lead d and
ground lead j from the holders r, s,
and t.
p
r
o
j
12. Remove the cover u and plate v.
b
c
j
k
q
l
m
n
s
d
t
7-12
0
1
2
3
4
5
6
7
8
9
10
A