Page 19 of 80
INSTRUMENT AND CONTROL FUNCTIONS
3
12 34
ZAUM0522
EAU03034
Indicator and warning lights
EAU00057
Turn signal indicator light “
”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
1. Fuel level warning light “
”
2. Turn signal indicator light “
”
3. Oil level warning light “
”
4. High beam indicator light “”
EAU00063
High beam indicator light “
”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU02958
Oil level warning light “
”
This warning light comes on when the
key is in the “
*
” position or when the
oil level in the 2-stroke engine oil tank
is low during operation. If the warning
light comes on during operation, stop
immediately and fill the oil tank with
Yamalube 2 or equivalent 2-stroke
engine oil of either JASO grade "FC"
or ISO grades "EG-C" or "EG-D". The
warning light should go off after the 2-
stroke engine oil tank has been refilled.
NOTE :
If the warning light does not come on
when the key is in the “
*
” position or
does not go off after the 2-stroke engine
oil tank has been refilled, have a
Yamaha dealer check the electrical cir-
cuit.
EC000000
Do not operate the scooter until you
know that the engine oil level issufficient.
3-2
ZAUM0524
EAUM0112
Fuel level warning light “
”
This warning light comes on and the
last two segments of the fuel meter will
start to flash when the fuel level drops
below approximately 1.4 L . When this
occurs, refuel as soon as possible.
Page 35 of 80
OPERATION AND IMPORTANT RIDING POINTS
5
EAU03093
Tips for reducing fuel
consumptionFuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:•
Thoroughly warm up the engine.
•
Avoid high engine speeds during
acceleration.
•
Avoid high engine speeds with no
load on the engine.
•
Turn the engine off instead of
letting it idle for an extended
length of time (e.g., in traffic jams,
at traffic lights or at railroad
crossings).
EAU00436
Engine break-inThere is never a more important period
in the life of your engine than the period
between 0 and 1,000 km. For this
reason, you should read the following
material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1,000 km. The various parts in the
engine wear and polish themselves to
the correct operating clearances.
During this period, prolonged full-
throttle operation or any condition that
might result in engine overheating must
be avoided.
EAUT0003*
0 - 150 km
Avoid operation above 1/3 throttle. Stop
the engine and let it cool for 5 to 10
minutes after every hour of operation.
Vary the speed of the scooter from time
to time. Do not operate it at one set
throttle position.150 - 500 km
Avoid prolonged operation above 1/2
throttle.
500 - 1,000 km
Avoid cruising speeds in excess of 3/4
throttle.
ECAT0001*
After 1,000 km of operation, be sureto replace the final transmission oil.
1,000 km and beyond
Avoid prolonged full throttle operation.
Vary speeds occasionally.
EC000049
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealercheck the vehicle.
5-4
Page 42 of 80
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU01651
Checking the spark plugThe spark plug is an important engine
component, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
it should be removed and checked in
accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plug can
reveal the condition of the engine.The porcelain insulator around the
center electrode of the spark plug
should be a medium-to-light tan (the
ideal color when the scooter is ridden
normally). If the spark plug shows a
distinctly different color, the engine
could be defective. Do not attempt to
diagnose such problems yourself.
Instead, have a Yamaha dealer check
the scooter.
If the spark plug shows signs of
electrode erosion and excessive
carbon or other deposits, it should be
replaced.
Specified spark plug:
BR8HS (NGK)
or BR9HS (NGK)
Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.
Spark plug gap:
0.5 - 0.7 mmClean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
Tightening torque:
Spark plug:
20 Nm (2.0 m
•kg)
NOTE :
If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4 - 1/2 turn
past finger tight. However, the spark
plug should be tightened to thespecified torque as soon as possible.
a
ZAUM0037a. Spark plug gap
6-5