2003 YAMAHA KODIAK 400 coolant reservoir

3-1
EBU00032
DESCRIPTION AND MACHINE
IDENTIFICATION1. Rear spring preload
adjusting ring
2. Storage compartment
and tool kit
3. Spark plug
4. Front spring preload
adjusting ring
5. Rear brake pedal
6. V-belt case
7. Radiator cap
8. Fuel cock
9. Air filter case
10. Fuses
11. Tail/brake light
12. Front spring preload
adjusting ring
13. V-belt cooling duct check
hose14. Coolant reservoir
15. Oil filter cartridge
16. Engine oil dipstick
17. Rear brake lever
18. Left handlebar switches
19. Starter (choke)
20. Horn switch
21. Drive select lever
22. Speedometer
23. Main switch
24. Fuel tank cap
25. Auxiliary DC jack
26. Right handlebar
switches
27. Throttle lever
28. Front brake leverNOTE:The machine you have purchased may differ
slightly from those shown in the figures of this
manual.
U5TE60.book Page 1 Monday, June 10, 2002 8:47 AM

5-1
EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
BrakesCheck operation, free play, fluid level and fluid leakage.
Fill with DOT 4 brake fluid if necessary.5-5–5-7,
8-87–8-103
FuelCheck fuel level.
Fill with fuel if necessary.5-9–5-11
Engine oilCheck oil level.
Fill with oil if necessary.5-13–5-15,
8-29–8-39
CoolantCheck coolant level in reservoir.
Fill with coolant if necessary.8-51–8-61
Final gear oil and
differential gear oilCheck for leakage. 5-17–5-19, 8-39–8-49
ThrottleCheck for proper throttle cable operation. 5-21, 8-85
Wheels and tiresCheck tire pressure, wear and damage.5-25–5-31,
8-109–8-111
Fittings and fastenersCheck all fittings and fasteners. 5-23
LightsCheck for proper operation. 5-23, 8-123–8-127
Axle bootsCheck for damage. 8-61
U5TE60.book Page 1 Monday, June 10, 2002 8:47 AM

5-19
EBU00678*
Differential gear oil
Make sure the differential gear oil is at the speci-
fied level. Add oil as necessary. (See pages 8-45–
8-49 for details.)
EBU01244
Coolant
Check the coolant level in the coolant reservoir
when the engine is cold. (The coolant level will
vary with engine temperature.) The coolant level is
satisfactory if it is between the upper and lower
level marks on the coolant reservoir. If the coolant
level is at or below the lower level mark, add tap
water (soft water) to bring the level up to the upper
level mark. Change the coolant every two years.
(See pages 8-51–8-61 for details.) Recommended oil:
SAE 80 API “GL-4” Hypoid gear oil
U5TE60.book Page 19 Monday, June 10, 2002 8:47 AM

5-21
CAUTION:_ Hard water or salt water is harmful to the en-
gine. You may use distilled water if you cannot
get soft water. _
WARNING
_ Wait for the engine and radiator to cool before
removing the radiator cap. You could be
burned by hot fluid and steam blown out under
pressure. Always put a thick rag over the cap
when opening. Allow any remaining pressure
to escape before completely removing the cap. _
EBU01083
Throttle lever
Check to see that the throttle lever operates cor-
rectly. It must open smoothly and spring back to
the idle position when released. Have a Yamaha
dealer repair as necessary for proper operation.Coolant reservoir capacity:
0.25 L
U5TE60.book Page 21 Monday, June 10, 2002 8:47 AM

8-51 1. Coolant reservoir cap
2. Maximum level mark
3. Minimum level mark
1. Bouchon du vase d’expansion
2. Repère de niveau maximum
3. Repère de niveau minimum
1. Tapa del depósito de refrigerante
2. Marca de nivel máximo
3. Marca de nivel mínimo
EBU01000
Cooling system
1. Check the coolant level in the reservoir when
the engine is cold as the coolant level will
vary with engine temperature. The coolant
level should be between the maximum and
minimum marks.
2. If the level is low, remove panel D. (See pag-
es 8-17–8-21 for panel removal and installa-
tion procedures.)
U5TE60.book Page 51 Monday, June 10, 2002 8:47 AM

8-53
3. Remove the reservoir cap, and then add
coolant or distilled water to raise it to the
specified level.
4. Install the panel.CAUTION:_ Hard water or salt water is harmful to the en-
gine. You may use soft water if you can’t get
distilled water. _NOTE:_

If water is added, have a Yamaha dealer
check the antifreeze content of the coolant as
soon as possible.


The radiator fan operation is completely auto-
matic. It is switched on or off according to the
coolant temperature in the radiator.
_If your ATV overheats, see page 8-132 for details.Coolant reservoir capacity:
0.25 L
U5TE60.book Page 53 Monday, June 10, 2002 8:47 AM

8-57 1. Radiator cap
1. Bouchon du radiateur
1. Tapa del radiador
1. Coolant reservoir hose
1. Flexible du vase d’expansion
1. Manguera del depósito de refrigerante
5. Remove the radiator cap.
6. Remove the coolant reservoir cap.
7. Disconnect the hose on the coolant reservoir
side, and then drain the coolant from the
coolant reservoir.
8. After draining the coolant, thoroughly flush
the cooling system with clean tap water.
9. Replace the coolant drain bolt washer if it is
damaged, and then tighten the coolant drain
bolt to the specified torque.
Tightening torque:
Coolant drain bolt:
10 Nm (1.0 m·kgf)
U5TE60.book Page 57 Monday, June 10, 2002 8:47 AM

8-59
10. Install the coolant reservoir hose.
11. Pour the recommended coolant into the radi-
ator until it is full.CAUTION:_ Hard water or salt water is harmful to the en-
gine. You may use soft water if you can’t get
distilled water. _
Recommended antifreeze:
High quality ethylene glycol antifreeze
containing corrosion inhibitors for aluminum
engines.
Antifreeze and water mixing ratio:
1:1
Total amount:
1.32 L
Coolant reservoir capacity
(up to the maximum level mark):
0.25 L
U5TE60.book Page 59 Monday, June 10, 2002 8:47 AM