2018 YAMAHA YZ65 wheel

Motorcycle care and stora ge
8-2
8
fected
area any lon ger than in-
structed . Also, thorou ghly rinse
the area off with water, immed i-
ately dry it, an d then apply a cor-
rosion protection spray.
 Improper cleanin g can damag e
plastic parts (such as cowlin gs,
panels, etc.) an d the mufflers.
Use only a soft, clean cloth or
spon ge with water to clean
plastic. However, if the plastic
parts cannot be thorou ghly
cleaned with water, dilute d mil d
d eter gent with water may b e
use d. Be sure to rinse off any
d eter gent resi due using plenty
of water, as it is harmful to plas-
tic parts.
 Do not use any harsh chemical
prod ucts on plastic parts. Be
sure to avoi d usin g cloths or
spon ges which have b een in
contact with stron g or a brasive
cleanin g prod ucts, solvent or
thinner, fuel ( gasoline), rust re-
movers or inhi bitors, brake flui
d,
an

tifreeze or electrolyte.
 Do not use hi gh-pressure wash-
ers or steam-jet cleaners since
they cause water seepag e and
d eterioration in the followin g ar-
eas: seals (of wheel an d swin g-
arm bearin gs, fork an d b rakes),
electric components (couplers,
connectors, an d switches),
b reather hoses an d vents.
After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain or near the sea
Since sea salt is extremely corrosive,
carry out the following steps after each
ride in the rain or near the sea.
1. Clean the motorcycle with cold water and a mild detergent, after
the engine has cooled down.
NOTICE: Do not use warm wa-
ter since it increases the corro-
sive action of the salt.
[ECA10792]
2. Apply a corrosion protection spray on all metal, including chrome-
and nickel-plated, surfaces to pre-
vent corrosion.
After cleanin g
1. Dry the motorcycle with a chamois or an absorbing cloth.
2. Immediately dry the drive chain and lubricate it to prevent it from
rusting.
3. Use a chrome polish to shine chrome, aluminum and stainless-
steel parts, including the exhaust
system.
4. To prevent corrosion, it is recom- mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.
5. Use spray oil as a universal clean- er to remove any remaining dirt.
6. Touch up minor paint damage caused by stones, etc.
7. Wax all painted surfaces.
8. Let the motorcycle dry completely before storing or covering it.
UBR880E0.book Page 2 Friday, February 16, 2018 8:32 AM

Motorcycle care and stora ge
8-4
8
b. Pour a teaspoonful of engine
oil into the spark plug bore.
c. Install the spark plug cap onto the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from the spark plug, and then
install the spark plug and the
spark plug cap. WARNING! To
prevent damag e or injury
from sparkin g, make sure to
g roun d the spark plu g elec-
tro des while turnin g the en-
g ine over.
[EWA10952]
5. Lubricate all control cables and
the pivoting points of all levers and
brake pedal.
6. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
7. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
TIP
Make any necessary repairs before
storing the motorcycle.
UBR880E0.book Page 4 Friday, February 16, 2018 8:32 AM

Specifications
9-1
9
Dimensions:
Overall length:1615 mm (63.6 in)
Overall width:
760 mm (29.9 in)
Overall height: 1000 mm (39.4 in)
Seat height: 755 mm (29.7 in)
Wheelbase:
1140 mm (44.9 in)
Ground clearance: 265 mm (10.43 in)
Wei ght:
Curb weight:
61 kg (134 lb)
Maximum rider weight:
50.0 kg (110 lb)
ng ine:
Combustion cycle:
2-stroke
Cooling system:
Liquid cooled
Number of cylinders: Single cylinder
Displacement: 65 cm³
Bore × stroke:
43.5 × 43.6 mm (1.71 × 1.72 in)
Compression ratio: 8.1–9.6 : 1
Starting system: Kickstarter
Lubrication system:
Premix lubrication
Engine oil:
Engine oil:
YAMALUBE 2R
Recommended brand:
YAMALUBE
Transmission oil:
Type: Motor oil SAE 10W-30 type SE or higher or
Gear oil SAE 85W GL-3
Quantity: 0.50 L (0.53 US qt, 0.44 Imp.qt)
Coolant quantity:
Radiator (including all routes):0.38 L (0.40 US qt, 0.33 Imp.qt)
Air filter:
Air filter element:Wet element
Fuel:
Recommended fuel:Premium unleaded gasoline (Gasohol [E10]
acceptable)
Fuel tank capacity: 3.5 L (0.9 US gal, 0.8 Imp.gal)
Car buretor:
Type × quantity:
PWK28 × 1
Spark plu g(s):
Manufacturer/model:
NGK/BR9ECM
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)
Clutch:
Clutch type:Wet, multiple-disc
Drivetrain:
Primary reduction ratio:
3.611 (65/18)
Final drive: Chain
Secondary reduction ratio: 3.357 (47/14)
Transmission type:
Constant mesh 6-speed
Gear ratio: 1st:
2.455 (27/11)
2nd: 1.882 (32/17)
3rd: 1.529 (26/17)
4th:
1.263 (24/19)
5th: 1.095 (23/21)
6th: 0.960 (24/25)
Chassis:
Frame type:Semi double cradle
Caster angle: 26.4 °
Trail:
64 mm (2.5 in)
UBR880E0.book Page 1 Friday, February 16, 2018 8:32 AM

Specifications
9-2
9
Front tire:
Type:With tube
Size:
60/100-14 30M
Manufacturer/model: MAXXIS/MAXXCROSS SI
Rear tire:
Type:
With tube
Size: 80/100-12 41M
Manufacturer/model: MAXXIS/MAXXCROSS SI
Tire air pressure (measure d on col d
tires):
Front:
100 kPa (1.00 kgf/cm², 15 psi)
Rear: 100 kPa (1.00 kgf/cm², 15 psi)
Front wheel:
Wheel type:Spoke wheel
Rim size: 1.60 x 14
Rear wheel:
Wheel type:Spoke wheel
Rim size: 1.60 x 12
Front brake:
Type:
Hydraulic single disc brake
Specified brake fluid: DOT 4
Rear brake:
Type:
Hydraulic single disc brake
Specified brake fluid: DOT 4
Front suspension:
Type:Telescopic fork
Spring: Coil spring
Shock absorber:
Hydraulic damper
Wheel travel: 215 mm (8.5 in)
Rear suspension:
Type: Swingarm
Spring:
Coil spring
Shock absorber: Gas-hydraulic damper
Wheel travel: 270 mm (10.6 in)
Electrical system:
Ignition system:CDI
Charging system: CDI magneto
UBR880E0.book Page 2 Friday, February 16, 2018 8:32 AM

11-1
11
Index
A
Air filter element, cleaning .................... 7-10
B
Brake and clutch levers, checking and
lubricating .......................................... 7-24
Brake fluid, changing ........................... 7-20
Brake fluid level, checking ................... 7-19
Brake lever ............................................. 4-2
Brake lever free play, checking ............ 7-17
Brake pedal ............................................ 4-3
Brake pedal, checking and lubricating .......................................... 7-24
C
Cables, checking and lubricating ......... 7-23
Carburetor, adjusting ........................... 7-12
Care ........................................................ 8-1
Clutch lever ............................................ 4-1
Clutch lever free play, adjusting ........... 7-16
Coolant ................................................... 7-8
D
Drive chain, cleaning and lubricating ... 7-22
Drive chain slack .................................. 7-21
E
Engine break-in ...................................... 6-3
Engine idling speed .............................. 7-12
Engine serial number............................ 10-1
Engine, starting a warm ......................... 6-2
Engine stop switch ................................. 4-1
F
Front and rear brake pads, checking ... 7-18
Front fork, adjusting ............................... 4-9
Front fork, bleeding .............................. 4-10
Front fork, checking ............................. 7-26
Fuel......................................................... 4-4
Fuel cock ................................................ 4-6
Fuel tank breather hose ......................... 4-6
Fuel tank cap.......................................... 4-3
H
Handlebar switch ................................... 4-1
I
Identification numbers.......................... 10-1
K
Kickstarter .............................................. 4-7
L
Labels, location ...................................... 1-1
M
Matte color, caution ............................... 8-1
P
Parking ................................................... 6-5
Part locations ......................................... 3-1 Periodic maintenance and lubrication
chart ..................................................... 7-2
R
Rear suspension, lubricating ................ 7-25
S
Safety information................................... 2-1
Seat......................................................... 4-8
Shifting .................................................... 6-2
Shift pedal............................................... 4-2
Shift pedal, checking ............................ 7-18
Shock absorber assembly, adjusting ... 4-11
Sidestand .............................................. 4-15
Spark plug, checking .............................. 7-6
Specifications ......................................... 9-1
Starter (choke) knob ............................... 4-7
Starting and warming up a cold engine ................................................... 6-1
Steering, checking ................................ 7-26
Storage ................................................... 8-3
Supporting the motorcycle ................... 7-27
Swingarm pivots, lubricating ................ 7-25
T
Throttle grip and cable, checking and lubricating ........................................... 7-23
Throttle grip free play, adjusting ........... 7-13
Tires ...................................................... 7-14
Transmission oil ...................................... 7-7
Troubleshooting .................................... 7-30
Troubleshooting charts ......................... 7-31
V
Vehicle identification number ............... 10-1
W
Wheel bearings, checking..................... 7-27
Wheel (front).......................................... 7-28
Wheel (rear) ........................................... 7-29
Wheels .................................................. 7-16
Y
YPVS system ........................................ 4-16
UBR880E0.book Page 1 Friday, February 16, 2018 8:32 AM