2008 YAMAHA TTR110 Owners Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3 [(R+M)/2] of 86 or higher, or a research
octane number of 91 or higher. If
knocking (or pinging) occurs, use a
gasoline of a different brand or premi-
um unleaded fuel. Use of unleaded fuel
will extend spark plug life and reduce
maintenance cost.
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that contain-
ing methanol. Gasohol containing
ethanol can be used if ethanol content
does not exceed 10%. Gasohol con-
taining methanol is not recommended
by Yamaha because it can cause dam-
age to the fuel system or vehicle perfor-
mance problems.
For Europe and Oceania
CAUTION:
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand
or premium unleaded fuel. Use of un-
leaded fuel will extend spark plug life
and reduce maintenance costs.
EAU13412
Fuel tank breather hose Before operating the motorcycle:

Check the fuel tank breather hose
connection.


Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.


Make sure that the fuel tank
breather hose is not blocked, and
clean it if necessary.
Recommended fuel:
For Europe: REGULAR UNLEADED
GASOLINE ONLY
For Oceania: UNLEADED GASO-
LINE ONLY
Fuel tank capacity:
3.8 L (1.00 US gal) (0.84 Imp.gal)
Fuel reserve amount:
0.5 L (0.13 US gal) (0.11 Imp.gal)
1. Fuel tank breather hose
1
U5B680E0.book Page 4 Tuesday, July 17, 2007 9:11 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
EAU13561
Fuel cock The fuel cock supplies fuel from the
tank to the carburetor while filtering it al-
so.
The fuel cock has three positions:
OFF
With the lever in this position, fuel will
not flow. Always return the lever to this
position when the engine is not running.ON
With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
RESThis indicates reserve. If you run out of
fuel while riding, move the lever to this
position. Fill the tank at the first oppor-
tunity. Be sure to set the lever back to
“ON” after refueling!1. Arrow mark positioned over “OFF”
1. Arrow mark positioned over “ON”
1. Arrow mark positioned over “RES”
U5B680E0.book Page 5 Tuesday, July 17, 2007 9:11 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-6
3
EAU13590
Starter (choke) lever“” Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the lever in direction (a) to turn on
the starter (choke).
Move the lever in direction (b) to turn off
the starter (choke).
EAU37650
Kickstarter If the engine fails to start by pushing the
start switch, try to start it by using the
kickstarter. To start the engine, fold out
the kickstarter lever, move it down light-
ly with your foot until the gears engage,
and then push it down smoothly but
forcefully.
EAU13960
Seat To remove the seat
Remove the bolts, and then pull the
seat off.
To install the seat
1. Insert the projections on the front
of the seat into the seat holders as
shown.
1. Starter (choke) lever“”
1. Kickstarter lever
1
1. Bolt
1
U5B680E0.book Page 6 Tuesday, July 17, 2007 9:11 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-7
3
2. Place the seat in the original posi-
tion, and then tighten the bolts.
NOTE:Make sure that the seat is properly se-cured before riding.
EAU37490
Sidestand The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.
WARNING
EWA14190
The vehicle must not be ridden with
the sidestand down, or if the side-
stand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resultingin a possible loss of control.
EAU41610
Starting circuit cut-off system The starting circuit cut-off system pre-
vents starting when the transmission is
in gear.
Periodically check the operation of the
starting circuit cut-off system according
to the following procedure.
WARNING
EWA10250
If a malfunction is noted, have a
Yamaha dealer check the system be-fore riding.
1. Projection
2. Seat holder
1
2
U5B680E0.book Page 7 Tuesday, July 17, 2007 9:11 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
With the engine turned off:
1. Make sure that the engine stop switch is set to “
”.
2. Turn the key to “ON”.
3. Shift the transmission into gear.
4. Keep the front or rear brake applied.
5. Push the start switch.
Does the engine start?
The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
6. Shift the transmission into the neutral position.
7. Push the start switch.
Does the engine start?
The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
YES
NOTE:
a warmed-up engine.
NO
The system is OK. The motorcycle can be ridden.
YES
NO
This check is most reliable if performed with
U5B680E0.book Page 8 Tuesday, July 17, 2007 9:11 AM

PRE-OPERATION CHECKS
4-1
4
EAU15593
The condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.NOTE:Pre-operation checks should be made each time the vehicle is used. Such an inspection can be accomplished in a very shorttime; and the added safety it assures is more than worth the time involved.
WARNING
EWA11150
If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operatingthe vehicle.U5B680E0.book Page 1 Tuesday, July 17, 2007 9:11 AM

PRE-OPERATION CHECKS
4-2
4
EAU15605
Pre-operation check list
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-3
Engine oilCheck oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-8
Front brakeCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-17, 6-19
Rear brakeCheck operation.
Check pedal free play.
Adjust if necessary.6-18, 6-19
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-14, 6-22
Control cablesMake sure that operation is smooth.
Lubricate if necessary.6-22
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.6-20, 6-21
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.6-15, 6-16
Shift pedalMake sure that operation is smooth.
Correct if necessary.6-19
U5B680E0.book Page 2 Tuesday, July 17, 2007 9:11 AM

PRE-OPERATION CHECKS
4-3
4
Brake pedalMake sure that operation is smooth.
Lubricate pedal pivoting point if necessary.6-23
Brake leverMake sure that operation is smooth.
Lubricate lever pivoting point if necessary.6-23
SidestandMake sure that operation is smooth.
Lubricate pivot if necessary.6-23
Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.—
Engine stop switchCheck operation.3-1 ITEM CHECKS PAGE
U5B680E0.book Page 3 Tuesday, July 17, 2007 9:11 AM