Page 136 of 444
5-17
CAUTION:_
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 spec-
ified. In addition, do not use oils labeled
“ENERGY CONSERVING II” or higher.
Make sure that no foreign material enters
the crankcase.
_
Oil quantity:
Periodic oil change:
1.9 L
With oil filter element replacement:
2.0 L
Total amount:
2.2 L
U5KM61.book Page 17 Friday, July 26, 2002 11:13 AM
Page 222 of 444
7-37
With the engine idling, shift the drive select lever to
the low position “L” or the high position “H”. 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 until 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
possibility of an accident.CAUTION:_ Do not shift from drive position low “L” to high
“H” or vice versa without coming to a com-
plete stop. Damage to the engine or drive train
may occur. _
U5KM61.book Page 37 Friday, July 26, 2002 11:13 AM
Page 308 of 444
8-43
9. Fill the engine with sufficient oil to reach the
specified level. Install the engine oil filler cap
and tighten it.CAUTION:_
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 spec-
ified. In addition, do not use oils labeled
“ENERGY CONSERVING II” or higher.
Make sure that no foreign material enters
the crankcase.
_
Recommended engine oil:
See page 10-2.
Oil quantity:
Total amount:
2.2 L
Periodic oil change:
1.9 L
With oil filter cartridge replacement:
2.0 L
U5KM61.book Page 43 Friday, July 26, 2002 11:13 AM
Page 421 of 444
10-2
10
Compression ratio 9.1 :1
Starting system Electric and recoil starter
Lubrication system Wet sump
Engine oil:
Type
Recommended engine oil classification API Service SE, SF, SG type or higherModel YFM660F
-20˚-10˚0˚
10˚20˚30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
CAUTION:
In order to prevent clutch slippage (since the en-
gine 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 CONSERVING II” or higher.
U5KM61.book Page 2 Friday, July 26, 2002 11:13 AM
Page 423 of 444
10-4
Carburetor:
Type / quantity BSR42 / 1
Manufacturer MIKUNI
Spark plug:
Type/manufacturer DPR8EA-9 / NGK
Spark plug gap 0.8–0.9 mm
Clutch type Wet, centrifugal automatic
Transmission:
Primary reduction system V-belt
Secondary reduction system Spur gear
Secondary reduction ratio 39/24
× 24/18
× 33/9 (7.944)
Transmission type V-belt automatic
Operation Left hand operation
Reverse gear 25/17 (1.471)
Sub transmission ratio low 37/15 (2.466)
high 28/19 (1.473)
Chassis:
Frame type Steel tube frame
Caster angle 5°
Trail 26 mmModel YFM660F
U5KM61.book Page 4 Friday, July 26, 2002 11:13 AM
