2008 YAMAHA GRIZZLY 660 clutch

7-13
7 With the engine idling, shift the drive select lever
into the low-range position or the high-range posi-
tion. Apply the throttle slowly and smoothly. The
centrifugal clutch will engage and you will start to
accelerate. If the throttle is applied too abruptly, the
front wheels may lift off the ground, resulting in a
loss of directional control. Avoid higher speeds un-
til you are thoroughly familiar with the operation of
your ATV.
When slowing down or stopping, release the throt-
tle and apply the brakes smoothly and evenly. Im-
proper use of the brakes can cause the tires to lose
traction, reducing control and increasing the possi-
bility of an accident.
CAUTION:ECB00250Do not shift from drive position low-range to
high-range or vice versa without coming to a
complete stop. Damage to the engine or drivetrain may occur.
TURNING YOUR ATV
To achieve maximum traction on unpaved surfac-
es in 2WD or 4WD, the two rear wheels turn to-
gether at the same speed. Furthermore, when
riding in 4WD-LOCK (“DIFF. LOCK”), the frontwheels also turn together at the same speed.
Therefore, unless the wheel on the inside of the
turn is allowed to slip or lose some traction, the
ATV will resist turning. A special turning technique
must be used to allow the ATV to make turns
quickly and easily. It is essential that this skill be
learned first at low speed.
WARNING
EWB01770Always follow proper procedures for turning
as described in this Owner’s Manual. Practice
turning at low speeds before attempting to turn
at faster speeds. Do not turn at speeds too fast
for your skills or the conditions. Operate at a
slow speed and allow extra time and distance
for maneuvers when in 4WD-LOCK (“DIFF.LOCK”).
As you approach a curve, slow down and begin to
turn the handlebars in the desired direction. As you
do so, put your weight on the footboard to the out-
side of the turn (opposite your desired direction)
and lean your upper body into the turn. Use the
throttle to maintain an even speed through the turn.
This maneuver will let the wheel on the inside of
the turn slip slightly, allowing the ATV to make the
turn properly.
U23D60E0.book Page 13 Thursday, March 15, 2007 7:59 PM

8-21
8
10. Install panels D and E.
11. Install the engine oil drain bolt, and then tight-
en it to the specified torque.12. Add the specified amount of the recommend-
ed engine oil, and then install and tighten the
engine oil filler cap.
NOTE:Be sure to wipe off spilled oil on any parts after theengine and exhaust system have cooled down.CAUTION:ECB00300
In order to prevent clutch slippage (since the
engine oil also lubricates the clutch), do not
mix any chemical additives. Do not use oils
with a diesel specification of “CD” or oils of
a higher quality than specified. In addition,
do not use oils labeled “ENERGY CONSERV-
ING II” or higher.
1. Torque wrenchTightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
Tightening torque:
Engine oil drain bolt:
30 Nm (3.0 m·kgf, 22 ft·lbf)
Recommended oil:
See page 10-1.
Oil quantity:
Without oil filter cartridge replacement:
1.90 L (2.01 US qt) (1.67 Imp.qt)
With oil filter car tridge replacement:
2.00 L (2.11 US qt) (1.76 Imp.qt)
U23D60E0.book Page 21 Thursday, March 15, 2007 7:59 PM

10-3
10
Clutch:Clutch type:
Wet, centrifugal automaticTransmission:Primary reduction system:
V-belt
Secondary reduction system:
Shaft drive
Secondary reduction ratio:
41/21 × 24/18 × 33/9 (9.544)
Transmission type:
V-belt automatic
Operation:
Left hand operation
Reverse gear:
25/17 (1.471)
Low range:
35/17 (2.058)
High range:
26/21 (1.238)Chassis:Frame type:
Steel tube frame
Caster angle:
5.0 °
Trail:
26.0 mm (1.02 in)Front tire:Type:
TubelessSize:
AT25 x 8-12
Manufacturer/model:
CHENG SHIN/C828-4P (AUS)(NZL)
DUNLOP/KT131 (EUR)
Rear tire:Type:
Tubeless
Size:
AT25 x 10-12
Manufacturer/model:
CHENG SHIN/C828-4P (AUS)(NZL)
DUNLOP/KT135 (EUR)Loading:Maximum loading limit:
220.0 kg (485 lb)
(Total weight of rider, cargo, accessories, and tongue)Tire air pressure (measured on cold tires):Recommended:
Front:
35.0 kPa (5.0 psi) (0.350 kgf/cm²)
Rear:
30.0 kPa (4.3 psi) (0.300 kgf/cm²)
Minimum:
Front:
32.0 kPa (4.6 psi) (0.320 kgf/cm²)
Rear:
27.0 kPa (3.9 psi) (0.270 kgf/cm²)
Maximum:
Front:
38.0 kPa (5.5 psi) (0.380 kgf/cm²)
U23D60E0.book Page 3 Thursday, March 15, 2007 7:59 PM