TABLE OF CONTENTS
SAFETY INFORMATION
................... 1-1
DESCRIPTION
................................... 2-1
Left view ........................................... 2-1
Right view ......................................... 2-2
Controls and instruments ................. 2-3
INSTRUMENT AND CONTROL
FUNCTIONS
........................................ 3-1
Handlebar switch ............................. 3-1
Power reduction plate ...................... 3-1
Shift pedal ....................................... 3-1
Brake lever ...................................... 3-2
Brake pedal ..................................... 3-2
Fuel tank cap ................................... 3-2
Fuel ................................................. 3-3
Fuel tank breather hose .................. 3-4
2-stroke engine oil ........................... 3-4
Fuel cock ......................................... 3-5
Starter (choke) lever “
1
” ................ 3-6
Kickstarter ....................................... 3-6
Seat ................................................. 3-7
Shock absorber assembly ............... 3-7
FOR YOUR SAFETY –
PRE-OPERATION CHECKS
............... 4-1
Pre-operation check list ................... 4-2
OPERATION AND IMPORTANT
RIDING POINTS
.................................. 5-1
Starting and warming up a cold
engine .......................................... 5-1
Starting a warm engine ................... 5-2
Shifting ............................................ 5-2
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT
.................................... 6-1
Owner’s tool kit ................................ 6-1
Periodic maintenance and lubrication
chart ............................................. 6-2
Checking the spark plug .................. 6-5
Removing the power reduction
plate ............................................. 6-6
Transmission oil .............................. 6-7
Cleaning the air filter element ......... 6-8
Cleaning the spark arrester ............. 6-9
Adjusting the carburetor ................ 6-10
Adjusting the engine idling
speed ......................................... 6-11
Adjusting the throttle cable free
play ............................................ 6-11
Tires .............................................. 6-12
Spoke wheels ................................ 6-13
Adjusting the brake lever free
play ............................................ 6-14
Adjusting the brake pedal free
play ............................................ 6-15Checking the front and rear brake
shoes ..........................................6-15
Drive chain slack ............................6-16
Cleaning and lubricating the drive
chain ...........................................6-18
Checking and lubricating the
cables .........................................6-18
Checking and lubricating the throttle
grip and cable .............................6-18
Adjusting the Autolube pump .........6-19
Checking and lubricating the brake
and shift pedals ..........................6-19
Checking and lubricating the brake
lever ............................................6-20
Checking and lubricating the
sidestand ....................................6-20
Checking the front fork ...................6-20
Checking the steering ....................6-21
Checking the wheel bearings .........6-22
Supporting the motorcycle .............6-22
Front wheel ....................................6-23
Rear wheel .....................................6-25
Troubleshooting .............................6-27
Troubleshooting chart ....................6-28
MOTORCYCLE CARE AND
STORAGE
...........................................7-1
Matte color caution ..........................7-1
Care .................................................7-1
Storage ............................................7-3
PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
1
2
3
4
5
6
7
8
9
4. Apply oil of the recommended type
to the entire surface of the sponge
material, and then squeeze the ex-
cess oil out.
TIP
The sponge material should be wet but
not dripping.
5. Install the sponge material onto
the air filter case cover.
6. Insert the air filter element into the
air filter case.
NOTICE:
Make sure
that the air filter element is prop-
erly seated in the air filter case.
The engine should never be op-erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
[ECA10481]
7. Install the air filter case cover by in-
stalling the screws.
EAU41231
Cleaning the spark arrester
The spark arrester should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
WARNING
EWA10980
Always let the exhaust system
cool prior to touching exhaust
components.
Do not start the engine when
cleaning the exhaust system.
TIP
Make sure to select a well-ventilated
area free of combustible materials to
clean the spark arrester.
1. Remove the tailpipe by removing
the bolt, and then pulling it out of
the muffler.
Recommended oil:
Yamaha foam air filter oil or other
quality foam air filter oil
