2003 YAMAHA GRIZZLY 660 engine oil

6-7 a. Starter (choke)
1. Fully open
2. Half open
3. Closed
a. Starter (enrichisseur)
1. Complètement ouvert
2. Mi-ouvert
3. Fermé
a. Starter (choke)
1. Abre completamente
2. Semiabierto
3. Cerrado
NOTE:

If the engine fails to start, release the start
switch, then push the start switch again.
Pause a few seconds before the next at-
tempt. Each cranking should be as short as
possible to preserve battery energy. Do not
crank the engine more than 10 seconds on
each attempt.


If the battery is discharged, pull the recoil
starter to start the engine.
7. If the engine is started with the starter (choke)
in position
1, the starter (choke) should be
returned to position
2 to warm up the en-
gine. If the engine is started with the starter
(choke) in position
2, keep the starter
(choke) in this position to warm up the en-
gine.
8. Continue warming up the engine until it idles
smoothly and return the starter (choke) to po-
sition
3 before riding.CAUTION:
See the “Engine break-in” section prior to op-
erating the engine for the first time.
U5KM61.book Page 7 Friday, July 26, 2002 11:13 AM

8-7
EBU00262
PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINEWhichever
comes firstINITIAL EVERY
km 320 1,200 2,400 2,400 4,800
hours 20 75 150 150 300
Valves*•Check valve clearance.
•Adjust if necessary.
Cooling system•Check coolant leakage.
•Repair if necessary.
•Replace coolant every 24 months.Spark plug•Check condition.
•Adjust gap and clean.
•Replace if necessary.Air filter•Clean.
•Replace if necessary.Every 20–40 hours
(More often in wet or dusty areas.)
Carburetor*•Check and adjust idle speed/starter operation.
•Adjust if necessary.Crankcase breather
system*•Check breather hose for cracks or damage.
•Replace if necessary.Exhaust system*•Check for leakage.
•Retighten if necessary.
•Replace gasket(s) if necessary.Fuel line*•Check fuel hose for cracks or damage.
•Replace if necessary.Engine oil
•Replace (Warm engine before draining).Engine oil filter cartridge
•Replace.Final gear oil
•Check oil level/oil leakage.
•Replace.Differential gear oil
Front brake*•Check operation/fluid leakage/see NOTE page 8-8.
•Correct if necessary.Rear brake*•Check operation/fluid leakage/see NOTE page 8-8.
•Correct if necessary.V-belt*•Check operation.
•Check for cracks or damage.U5KM61.book Page 7 Friday, July 26, 2002 11:13 AM

8-8
* It is recommended that these items be serviced by a Yamaha dealer.
** Lithium-soap-based greaseNOTE:Recommended brake fluid: DOT 4
Brake fluid replacement:
1. When disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally check
the brake fluid level and add fluid as required.
2. On the inner parts of the master cylinder and caliper cylinder, replace the oil seals every two years.
3. Replace the brake hoses every four years, or if cracked or damaged.Wheels*•Check balance/damage/runout.
•Repair if necessary.Wheel bearing*•Check bearing assemblies for looseness/damage.
•Replace if damaged.Front and rear
suspension*•Check operation.
•Correct if necessary.Steering system*•Check operation/Replace if damaged.
•Check toe-in/Adjust if necessary.Rear upper and lower
knuckle pivots*•Lubricate.**Drive shaft universal
joint*•Lubricate.**Engine mount*
•Check for cracks or damage.Front and rear axle boots*•Check operation.
•Replace if damaged.Stabilizer bushes*
•Check for cracks or damage.Fittings and Fasteners*•Check all chassis fittings and fasteners.
•Correct if necessary.
ITEM ROUTINEWhichever
comes firstINITIAL EVERY
km 320 1,200 2,400 2,400 4,800
hours 20 75 150 150 300
U5KM61.book Page 8 Friday, July 26, 2002 11:13 AM

8-33 1. Engine oil filler cap
2. Engine oil dipstick
1. Bouchon de remplissage d’huile de moteur
2. Jauge d’huile
1. Tapa de relleno de aceite de motor
2. Varilla de medición del aceite de motor
EBU01099
Engine oil
Engine oil level measurement
1. Remove panel F. (See page 8-31 for panel
removal and installation procedures.)
2. Place the ATV on a level surface and warm
up the engine for several minutes.
3. Stop the engine.
4. Remove the engine oil filler cap and wipe off
the dipstick with a clean rag.
5. Insert the dipstick in the filler hole without
screwing it in.NOTE:_ Wait a few minutes until the oil level settles before
checking. _
U5KM61.book Page 33 Friday, July 26, 2002 11:13 AM

8-35 1. Maximum level mark 2. Minimum level mark
1. Repère de niveau maximum 2. Repère de niveau minimum
1. Marca de nivel máximo 2. Marca de nivel mínimo
6. The oil level should be between the maxi-
mum and minimum marks. If the level is low,
fill the engine with sufficient oil to reach the
specified level.
Engine oil and oil filter cartridge replacement
1. Remove panels E and F. (See page 8-29 for
panel removal and installation procedures.)
2. Warm up the engine for several minutes.
3. Stop the engine. Place an oil pan under the
engine to collect the used oil, and then re-
move the engine oil filler cap.
U5KM61.book Page 35 Friday, July 26, 2002 11:13 AM

8-37 1. Engine oil drain bolt
1. Boulon de vidange de l’huile
1. Perno de drenaje del aceite de motor
4. Remove the drain bolt and drain the oil.
U5KM61.book Page 37 Friday, July 26, 2002 11:13 AM

8-39 1. Engine oil filter cartridge
2. Oil filter wrench
1. Cartouche du filtre à huile moteur
2. Clé pour filtre à huile
1. Cartucho del filtro de aceite de motor
2. Llave para filtros de aceite
5. Remove the oil filter cartridge by using an oil
filter wrench.NOTE:_ An oil filter wrench is available at a nearby
Yamaha dealer. _
U5KM61.book Page 39 Friday, July 26, 2002 11:13 AM

8-41 1. Torque wrench
1. Clé dynamométrique
1. Llave de apriete
6. Install the drain bolt and tighten it to the spec-
ified torque.
7. Apply a light coat of engine oil to the O-ring of
the new oil filter cartridge.NOTE:_ Make sure the O-ring is seated properly. _8. Install the oil filter cartridge, and then tighten
it to the specified torque with a torque
wrench. Tightening torque:
Drain bolt:
30 Nm (3.0 m·kgf)
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf)
U5KM61.book Page 41 Friday, July 26, 2002 11:13 AM