check engine YAMAHA TT-R50E 2016 User Guide

Periodic maintenance an d a djustment
7-8
7
4. If the engine oil is at or below the
minimum level mark, add suffi-
cient oil of the recommended type
to raise it to the correct level.
5. Insert the dipstick into the oil filler hole, and then tighten the oil filler
cap.
To chan ge the en gine oil
1. Start the engine, warm it up for several minutes, and then turn it
off.
2. Place an oil pan under the engine to collect the used oil.
3. Remove the engine oil filler cap, the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.
4. Install a new gasket and the drain bolt, and then tighten the drain
bolt to the specified torque.
5. Refill with the specified amount of the recommended engine oil, and
then install and tighten the oil filler
cap.
NOTICE
ECA11621
In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specified . In
a dd ition, do not use oils la bele d
“ENERGY CONSERVING II” or
hi gher.
 Make sure that no forei gn mate-
rial enters the crankcase.
6. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
7. Turn the engine off, and then check the oil level and correct it if
necessary.
1. Engine oil drain bolt
2. Gasket
Tightening torque:
Engine oil drain bolt: 20 Nm (2.0 m·kgf, 14 ft·lbf)
12
Recommen ded en gine oil:
See page 9-1.
Oil chan ge quantity:
0.80 L (0.85 US qt, 0.70 Imp.qt)
U2CJ83E0.book Page 8 Friday, June 26, 2015 10:36 AM

Periodic maintenance an d a djustment
7-12
7
EAU21363
A djustin g the eng ine idlin g
spee d
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
TIP
A diagnostic tachometer is needed to
make this adjustment.
1. Attach the tachometer to the
spark plug lead.
2. Start the engine and warm it up for several minutes at 1000–2000
r/min while occasionally revving it
to 4000–5000 r/min.
TIP
The engine is warm when it quickly re-
sponds to the throttle.
3. Check the engine idling speedand, if necessary, adjust it to
specification by turning the throt-
tle stop screw. To increase the en-
gine idling speed, turn the screw in
direction (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
TIP
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
1. Throttle stop screw
(a)(b)
1
En gine i dlin g spee d:
1600–1800 r/min
U2CJ83E0.book Page 12 Friday, June 26, 2015 10:36 AM

Periodic maintenance an d a djustment
7-13
7
EAU21385
Checkin g the throttle grip free
play
The throttle grip free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha deal-
er adjust it.
EAU21402
Valve clearance
The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
1. Throttle grip free play
1
U2CJ83E0.book Page 13 Friday, June 26, 2015 10:36 AM

Periodic maintenance an d a djustment
7-29
7
EAU24351
Supportin g the motorcycle
Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motorcy-
cle is in a stable and level position be-
fore starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcy- cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing a
jack under the frame in front of the
rear wheel.
2. Raise the front wheel off the ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing
a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU24361
Front wheel
EAU56364
To remove the front wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.
1. Remove the front fork leg guard
from each front fork leg by remov-
ing the bolts.
2. Disconnect the brake cable at the wheel by removing the brake lever
free play adjusting nut at the brake
camshaft lever, then remove the
cable from the brake camshaft le-
ver.
1. Front fork leg guard
2. Bolt
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Periodic maintenance an d a djustment
7-34
7
EAU67940
Trou bleshootin g chart
1. FuelThere is enough fuel.
There is no fuel.Supply fuel.
Check the battery.
The engine turns over
quickly.
The engine turns over
slowly.
The engine does not
start.
Check the battery.
The engine does not
start.
Check the ignition.
Wipe off with a dry
cloth and correct the
spark plug gap, or
replace the spark
plug.
Check the battery
lead connections,
and have a Yamaha
dealer charge the
battery if necessary.
2. BatteryThe battery is good.
3. IgnitionWet
Dry
There is compression.
There is no
compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.
Have a Yamaha dealer check the vehicle.
The engine does not
start.
Check the
compression.Have a Yamaha
dealer check the
vehicle.
Open the throttle
halfway and operate
the electric starter.
Remove the spark
plug and check
the electrodes.
Operate the electric
starter.
Check the fuel level
in the fuel tank.
Operate the electric
starter.
4. Compression
U2CJ83E0.book Page 34 Friday, June 26, 2015 10:36 AM

Motorcycle care and stora ge
8-4
8
EAU26153
Stora ge
Short-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the mo-
torcycle.
NOTICE
ECA10811
 Storin g the motorcycle in a
poorly ventilated room or cover-
in g it with a tarp, while it is still
wet, will allow water an d humi d-
ity to seep in an d cause rust.
 To prevent corrosion, avoi d
d amp cellars, sta bles ( because
of the presence of ammonia)
an d areas where stron g chemi-
cals are store d.
Lon g-term
Before storing your motorcycle for sev-
eral months: 1. Follow all the instructions in the “Care” section of this chapter.
2. For motorcycles equipped with a fuel cock that has an “OFF” posi-
tion: Turn the fuel cock lever to
“OFF”.
3. Drain the carburetor float chamber by loosening the drain bolt; this
will prevent fuel deposits from
building up. Pour the drained fuel
into the fuel tank.
4. Fill up the fuel tank and add fuel stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating. 5. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.a. Remove the spark plug cap and spark plug.
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.)
WARNING! To prevent d am-
a g e or injury from sparkin g,
make sure to groun d the
spark plu g electro des while
turnin g the en gine over.
[EWA10952]
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
6. Lubricate all control cables and the pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
7. 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.
8. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
U2CJ83E0.book Page 4 Friday, June 26, 2015 10:36 AM

11-1
11
Index
A
Air filter element, cleaning ...................... 7-9
B
Battery .................................................. 7-26
Brake lever .............................................. 4-3
Brake lever, checking and
lubricating ........................................... 7-23
Brake lever free play, adjusting ............ 7-17
Brake pedal............................................. 4-4
Brake pedal, checking and lubricating ........................................... 7-23
Brake pedal free play, adjusting ........... 7-18
Brake shoes, checking ......................... 7-19
C
Cables, checking and lubricating ......... 7-22
Carburetor, adjusting ............................ 7-11
Care ........................................................ 8-1
Clutch free play, adjusting .................... 7-16
D
Drive chain, cleaning and lubricating .... 7-21
Drive chain slack................................... 7-20
E
Engine break-in....................................... 6-3
Engine idling speed .............................. 7-12
Engine oil ................................................ 7-7
Engine serial number ............................ 10-1
Engine, starting a warm .......................... 6-2
Engine stop switch ................................. 4-1
F
Front fork, checking .............................. 7-25
Fuel ......................................................... 4-5
Fuel cock ................................................ 4-8
Fuel tank breather hose .......................... 4-7
Fuel tank cap .......................................... 4-4
Fuse, replacing ..................................... 7-28
H
Handlebar switches ................................ 4-1
I
Identification numbers .......................... 10-1
L
Labels, location....................................... 1-1
M
Main switch ............................................. 4-1
Maintenance and lubrication, periodic ... 7-4
Maintenance, emission control
system .................................................. 7-3
Matte color, caution ................................ 8-1
Model label ........................................... 10-1
P
Parking .................................................... 6-4 Part locations ......................................... 3-1
S
Safety information .................................. 2-1
Seat ........................................................ 4-9
Shifting ................................................... 6-2
Shift pedal .............................................. 4-3
Shift pedal, checking ............................ 7-19
Sidestand ............................................. 4-10
Sidestand, checking and lubricating .... 7-24
Spark arrester, cleaning ....................... 7-10
Spark plug, checking ............................. 7-6
Specifications ......................................... 9-1
Speed limiter .......................................... 4-2
Starter (choke) lever ............................... 4-9
Starting and warming up a cold
engine .................................................. 6-1
Starting circuit cut-off system .............. 4-10
Start switch ............................................ 4-1
Steering, checking................................ 7-25
Storage ................................................... 8-4
Supporting the motorcycle................... 7-29
Swingarm pivots, lubricating ................ 7-24
T
Throttle grip and cable, checking and lubricating .......................................... 7-22
Throttle grip free play, checking........... 7-13
Tires ...................................................... 7-14
Troubleshooting ................................... 7-33
Troubleshooting chart .......................... 7-34
V
Valve clearance .................................... 7-13
Vehicle Emission Control Information label (For Canada) .............................. 10-2
Vehicle identification number ............... 10-1
W
Wheel bearings, checking .................... 7-26
Wheel (front) ......................................... 7-29
Wheel (rear) .......................................... 7-31
Wheels .................................................. 7-15
U2CJ83E0.book Page 1 Friday, June 26, 2015 10:36 AM