Yamaha F4B Service Manual page 183

Item
Impeller/
water pump housing
Pilot water
Propeller/propeller nut/
cotter pin
Shift link
Spark plug
Spark plug cap
Throttle link/
throttle cable
Thermostat
Valve clearance
Water inlet
Wiring harness
connections/wiring
coupler connections
Fuel tank (built-in tank)
— : Not applicable
Item
Upper case
TIP:
When using lead high-sulfur gasoline, checking the valve clearance may be required more fre-
quently than every 500 hours.
Actions
Replace
Check
Check/replace
Check/replace
Check/replace
Check/replace
Check/adjust/replace
Check/replace
Check/adjust
Check
Check/replace
Check
Actions
Check/replace
Initial Every
20 hours 100 hours 300 hours
(3 months) (1 year) (3 years)

 
 
 

 
 

 
 

Every
1000 hours

Outline
See
500 hours
page
(5 years)
8-6
0
8-14
10-3
8-4
1
8-16
9-11
7-35
2
5-5
6-14
3
7-35

7-2
7-3
10-7
4
—
5
6-6
See
6
page
9-12
7
8
9
10
A
10-2