catalytic converter YAMAHA YBR250 2007 Owners Manual

TABLE OF CONTENTESSAFETY INFORMATION .................... 1-1
DESCRIPTION ................................... 2-1Left view ........................................ 2 - 1
Right view ...................................... 2 - 2
Controls and instruments ............. 2 - 3
INSTRUMENT AND CONTROL
FUNCTIONS ....................................... 3-1 Main switch/steering lock ............. 3 - 1
Indicator and warning lights ........ 3 - 2
Speedometer ................................. 3 - 2
Tachometer .................................... 3 - 3
Multi-function display ................... 3 - 3
Handlebar switches ...................... 3 - 4
Clutch lever ................................... 3 - 5
Shift pedal ..................................... 3 - 6
Brake lever .................................... 3 - 6
Brake pedal ................................... 3 - 6
Fuel tank cap ................................. 3 - 7
Fuel ................................................ 3 - 7
Catalytic converter ........................ 3 - 8
Seat ................................................ 3 - 9
Helmet holder ................................ 3 - 9
Storage compartment .................3-10
Adjusting the shock aborber
assemblies ............................... 3-10
Luggage strap holders ...............3-11
Sidestand ..................................... 3-11
Ignition circuit cut-off system .....3-12 PRE-OPERATION CHECKS .............. 4-1
Pre-operation check list ............... 4 - 2
OPERATION AND IMPORTANT
RIDING POINTS ................................. 5-1 Starting the engine ....................... 5 - 1
Shifting ........................................... 5 - 2
Tips for reducing fuel
consumption .............................. 5 - 3
Engine break-in ............................ 5 - 3
Parking .......................................... 5 - 4
PERIODIC MAINTENANCE AND
MINOR REPAIR .................................. 6-1 Owner’s tool kit .............................. 6 - 1
Periodic maintenance and lubrication chart ......................... 6 - 2
Removing and installing the cowling and panels ................... 6 - 6
Checking the spark plug .............. 6 - 7
Engine oil and oil filter element ... 6-8
Cleaning the air filter element ... 6-11
Checking the engine idling
speed ........................................ 6-12
Checking the throttle cable free play .................................... 6-12
Valve clearance .. ........................6-12
Tires ............................................. 6-13
Cast wheels ................................. 6-15
Adjusting the clutch lever free play .................................... 6-15Adjusting the brake pedal
position and free play .............6-16
Adjusting the rear brake light switch ........................................ 6-17
Checking the front brake pads
and rear brake shoes ..............6-17
Checking the front brake fluid level .......................................... 6-18
Changing the brake fluid ...........6-18
Drive chain slack ........................6-19
Cleaning and lubricating the
drive chain ............................... 6-20
Checking and lubricating the cables ....................................... 6-21
Checking and lubricating the throttle grip and cable .............6-21
Checking and lubricating the
brake and clutch levers ...........6-21
Checking and lubricating the brake and shift pedals ............6-22
Checking and lubricating the sidestand .................................. 6-22
Lubricating the rear
suspension .............................. 6-23
Checking the front fork ...............6-23
Checking the steering ................6-24
Checking the wheel bearings ....6-24
Battery .......................................... 6-24
Replacing the fuses ....................6-26
Replacing the headlight bulb ....6-27
Replacing a turn signal light bulb or the tail/brake light bulb .......6-28
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INSTRUMENT AND CONTROL FUNCTIONS
ECA10070
Immediately wipe off spilled fuel with
a clean, dry, soft cloth, since fuel may
deteriorate painted surfaces or plastic
parts.
EAU33500
Recommended fuel:REGULAR UNLEADED GASOLINE ONLY
Fuel tank capacity: 19.2 L (5.07 US gal) (4.22 Imp. gal)
Fuel reserve amount (when the fuel level warning light comes on):
4.5 L (1.19 US gal) (1.00 Imp. gal)
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 designed
to use regular unleaded gasoline with a
research octane number of 91 or higher.
If knocking (or pinging) occurs, use a gasoline of a different brand. Use of
unleaded fuel will extend spark plug life
and reduce maintenance costs.
EAU13431
Catalytic converterThis model is equipped with a catalytic
converter in the exhaust system.
EWA10860
The exhaust system is hot after
operation. Make sure that the exhaust
system has cooled down before
doing any maintenance work.
ECA10700
The following precautions must be
observed to prevent a fire hazard or
other damages.l
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Use only unleaded gasoline. The
use of leaded gasoline will cause
unrepairable damage to the
catalytic converter.
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Never park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
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Do not allow the engine to idle
too long.
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