Table of contentsSafety information ............................ 1-1
Further safe-riding points ............... 1-5
Description ....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
Instrument an d control functions ... 3-1
Main switch/steering lock............... 3-1
Keyhole shutter .............................. 3-3
Indicator lights and warning lights............................................ 3-3
Self-diagnosis device .................... 3-5
Multi-function meter unit ................ 3-5
Handlebar switches ........................ 3-9
Front brake lever .......................... 3-10
Rear brake lever ........................... 3-10
ABS (for ABS models) .................. 3-11
Fuel tank cap ................................ 3-12
Fuel ............................................... 3-13
Catalytic converter ....................... 3-14
Seat .............................................. 3-15
Passenger footrest ....................... 3-15
Storage compartment .................. 3-16
Luggage hook............................... 3-17
Sidestand ..................................... 3-17
Ignition circuit cut-off system ....... 3-18
Auxiliary DC connector ................. 3-20 For your safety – pre-operation
checks
............................................... 4-1
Operation an d important ri din g
points ................................................. 5-1
Starting the engine .......................... 5-1
Starting off ...................................... 5-2
Acceleration and deceleration ........ 5-3
Braking ............................................ 5-3
Tips for reducing fuel consumption ................................ 5-3
Engine break-in ............................... 5-4
Parking ............................................ 5-4
Perio dic maintenance an d
a d justment ........................................ 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for
the emission control system ........ 6-3
General maintenance and
lubrication chart ........................... 6-4
Removing and installing the panel ............................................ 6-8
Checking the spark plug ................. 6-8
Engine oil and oil strainer .............. 6-10
Final transmission oil..................... 6-12
Coolant.......................................... 6-13
Air filter and V-belt case air filter elements .................................... 6-14
Checking the throttle grip free play ..................................... 6-16 Valve clearance............................. 6-16
Tires .............................................. 6-17
Cast wheels .................................. 6-18
Checking the front brake lever
free play..................................... 6-19
Checking the rear brake lever free play..................................... 6-19
Checking the front and rear
brake pads ................................ 6-20
Checking the brake fluid level ...... 6-20
Changing the brake fluid .............. 6-22
Checking and lubricating the cables ........................................ 6-22
Checking and lubricating the
throttle grip and cable ............... 6-22
Lubricating the front and rear brake levers ............................... 6-23
Checking and lubricating the centerstand and sidestand........ 6-23
Checking the front fork ................. 6-24
Checking the steering................... 6-25
Checking the wheel bearings ....... 6-25
Checking the steering tie rod ....... 6-25
Checking the leaning system ....... 6-26
Battery .......................................... 6-26
Replacing the fuses ...................... 6-27
Replacing the headlight bulb ........ 6-29
Auxiliary lights............................... 6-30
Tail/brake light .............................. 6-30
Turn signal light bulb .................... 6-31
Troubleshooting............................ 6-31U2CME2E0.book Page 1 Friday, August 21, 2015 9:16 AM
Periodic maintenance an d a djustment
6-16
6 5. Insert the element into the V-belt
case.
6. Install the air filter element cover by installing the bolts.
Cleanin g the V- belt case check hose
1. Check the hose on the rear side of the V-belt case for accumulated
dirt or water.
2. If dirt or water is visible, remove the hose from the clamp, clean it,
and then install it.
EAU21386
Checkin g the throttle grip free
playMeasure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
EAU21402
Valve clearanceThe 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.
Recommen ded oil:
Yamaha foam air filter oil or other
quality foam air filter oil1. V-belt case check hose
1
1. Throttle grip free playThrottle grip free play:
3.0–7.0 mm (0.12–0.28 in)
1
U2CME2E0.book Page 16 Friday, August 21, 2015 9:16 AM
Specifications
8-1
8
Dimensions:Overall length:1905 mm (75.0 in)
Overall width:
735 mm (28.9 in)
Overall height: 1215 mm (47.8 in)
Seat height: 780 mm (30.7 in)
Wheelbase:
1310 mm (51.6 in)
Ground clearance: 120 mm (4.72 in)
Minimum turning radius: 2300 mm (90.6 in)Wei ght:Curb weight:
152 kg (335 lb) (MW125)
156 kg (344 lb) (MW125A)Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Single cylinder
Displacement: 124 cm3
Bore × stroke:
52.4 × 57.9 mm (2.06 × 2.28 in)
Compression ratio:
10.9 : 1
Starting system: Electric starter
Lubrication system: Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-40, 20W-40 or 20W-50
Recommended engine oil grade: API service SG type or higher, JASO
standard MA or MB
Engine oil quantity: Periodic oil change:
0.80 L (0.85 US qt, 0.70 Imp.qt)Final transmission oil:Type:YAMALUBE 10W-40 or SAE 10W-30 type
SE motor oil
Quantity: 0.20 L (0.21 US qt, 0.18 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark):
0.33 L (0.35 US qt, 0.29 Imp.qt)
Radiator (including all routes): 0.37 L (0.39 US qt, 0.33 Imp.qt)
Air filter:Air filter element:Oil-coated paper elementFuel:Recommended fuel:Regular unleaded gasoline (Gasohol (E10)
acceptable)
Fuel tank capacity: 6.6 L (1.74 US gal, 1.45 Imp.gal)Fuel injection:Throttle body:
ID mark: 2CM1 00Spark plu g(s):Manufacturer/model:
NGK/CR7E
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:Dry, centrifugal automaticTransmission:Primary reduction ratio:
1.000
Secondary reduction ratio: 9.533 (44/15 x 39/12)
Transmission type: V-belt automaticChassis:Frame type:Underbone
Caster angle: 20.0 °
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 20W-50SAE 20W-40
SAE 10W-40
U2CME2E0.book Page 1 Friday, August 21, 2015 9:16 AM
10-1
10
Index
AABS (for ABS models) .......................... 3-11
ABS warning light (for ABS models) ....... 3-4
Acceleration and deceleration ................ 5-3
Air filter and V-belt case air filter
elements ............................................. 6-14
Auxiliary DC connector ......................... 3-20
Auxiliary lights....................................... 6-30BBattery .................................................. 6-26
Brake fluid, changing............................ 6-22
Brake fluid level, checking.................... 6-20
Brake lever, front .................................. 3-10
Brake lever, rear ................................... 3-10
Brake levers, lubricating ....................... 6-23
Braking ................................................... 5-3CCables, checking and lubricating ......... 6-22
Care ........................................................ 7-1
Catalytic converter ............................... 3-14
Centerstand and sidestand, checking and lubricating .................... 6-23
Coolant ................................................. 6-13
Coolant temperature warning light ......... 3-4DDimmer switch...................................... 3-10EEngine break-in ...................................... 5-4
Engine oil and oil strainer ..................... 6-10
Engine serial number .............................. 9-1
Engine trouble warning light ................... 3-4FFinal transmission oil ............................ 6-12
Front and rear brake pads, checking ... 6-20 Front brake lever free play, checking ... 6-19
Front fork, checking ............................. 6-24
Fuel ...................................................... 3-13
Fuel consumption, tips for reducing ...... 5-3
Fuel tank cap........................................ 3-12
Fuses, replacing ................................... 6-27
HHandlebar switches ............................... 3-9
Headlight bulb, replacing ..................... 6-29
High beam indicator light ....................... 3-4
Horn switch .......................................... 3-10IIdentification numbers ........................... 9-1
Ignition circuit cut-off system .............. 3-18
Indicator lights and warning lights ......... 3-3KKeyhole shutter ...................................... 3-3LLeaning system, checking ................... 6-26
Luggage hook ...................................... 3-17MMain switch/steering lock ...................... 3-1
Maintenance and lubrication, periodic... 6-4
Maintenance, emission control
system ................................................. 6-3
Matte color, caution ............................... 7-1
Model label............................................. 9-1
Multi-function meter unit ........................ 3-5PPanel, removing and installing ............... 6-8
Parking ................................................... 5-4
Part locations ......................................... 2-1
Passenger footrest ............................... 3-15
RRear brake lever free play, checking .... 6-19SSafe-riding points ................................... 1-5
Safety information................................... 1-1
Seat....................................................... 3-15
Self-diagnosis device ............................. 3-5
Sidestand.............................................. 3-17
Spark plug, checking .............................. 6-8
Specifications ......................................... 8-1
Starting off .............................................. 5-2
Starting the engine ................................. 5-1
Start switch ........................................... 3-10
Steering, checking ................................ 6-25
Steering tie rod, checking..................... 6-25
Storage ................................................... 7-4
Storage compartment........................... 3-16TTail/brake light ...................................... 6-30
Throttle grip and cable,
checking and lubricating .................... 6-22
Throttle grip free play, checking ........... 6-16
Tires ...................................................... 6-17
Tool kit .................................................... 6-2
Troubleshooting .................................... 6-31
Troubleshooting charts ......................... 6-32
Turn signal indicator lights...................... 3-3
Turn signal light bulb ............................ 6-31
Turn signal switch ................................. 3-10VValve clearance..................................... 6-16
Vehicle identification number ................. 9-1
U2CME2E0.book Page 1 Friday, August 21, 2015 9:16 AM