2021 YAMAHA MT-125 odometer

Instrument and control functions
3-6
3
This model is equipped with variable
valve actuation (VVA) for good fuel
economy and acceleration in both the
low-speed and high-speed ranges.
The VVA indicator comes on when the
variable valve actuation system has
switched to the high-speed range.
Tachometer
The tachometer allows the rider to
monitor the engine speed and keep it
within the ideal power range.
NOTICE
ECA23050
Do not operate the en
gine in the ta-
chometer hi gh-r/min zone. Hi
gh-r/min zone: 11000 r/min an d
a b ove
Transmission gear display
This display shows the selected gear.
The neutral position is indicated by “ ”
and by the neutral indicator light. Multi-function
display
The multi-function display is equipped
with the following:  an odometer
 two tripmeters
 a fuel reserve tripmeter
 an instantaneous fuel consump-
tion display
 an average fuel consumption dis-
play
 an average speed display
 a brightness screen and shift tim-
ing indicator light control mode
 welcome screen display
 a self diagnostic device
Push the “SELECT” button to switch
the display between the odometer
mode “ODO”, tripmeters mode “TRIP
1. Tachometer
2. Tachometer red zoneZAUM1572
1 2
1. Neutral indicator light “ ”
2. Transmission gear displayZAUM15731
2
1. Multi-function displayZAUM1574
1
UB6GE1E0.book Page 6 Thursday, July 30, 2020 1:08 PM

Instrument and control functions
3-7
3 1” and “TRIP 2”, instantaneous fuel
consumption mode “km/L” or “L/100
km”, average fuel consumption mode
“AVE_ _._ km/L” or “AVE_ _._ L/100
km” and average speed mode “AVE_
_._ km/h” in the following order:
ODO
→ TRIP 1 → TRIP 2 → km/L or
L/100 km → AVE_ _._ km/L or AVE_ _._
L/100 km → AVE_ _._ km/h → ODO
For the UK:
Push the “SELECT” button to switch
the display between the odometer
mode “ODO”, tripmeters mode “TRIP
1” and “TRIP 2”, instantaneous fuel
consumption mode “km/L” or “L/100
km” or “MPG”, average fuel consump-
tion mode “AVE_ _._ km/L”, “AVE_ _._
L/100 km” or “AVE_ _ _._ MPG” and
average speed mode “AVE_ _._ km/h”
or “AVE_ _._ MPH” in the following or-
der:
ODO → TRIP 1 → TRIP 2 → km/L or
L/100 km or MPG → AVE_ _._ km/L or
AVE_ _._ L/100 km or AVE_ _ _._
MPG → AVE_ _._ km/h or AVE_ _._
MPH → ODO Push the “RESET” button to switch
display backward.
If the last segment of the fuel meter
starts flashing, the display automati-
cally changes to the fuel reserve trip-
meter mode “TRIP F” and starts
counting the distance traveled from
that point. In that case, push the “SE-
LECT” button to switch the display be-
tween the various tripmeter, odometer,
instantaneous fuel consumption, aver-
age fuel consumption, and average
speed modes in the following order:
TRIP F
→ km/L or L/100 km → AVE_
_._ km/L or AVE_ _._ L/100 km → AVE_
_._ km/h → ODO → TRIP 1 → TRIP 2
→ TRIP F
For the UK:
TRIP F → km/L, L/100 km or MPG →
AVE_ _._ km/L, AVE_ _._ L/100 km or
AVE_ _ _._ MPG → AVE_ _._ km/h or
AVE_ _._ MPH → ODO → TRIP 1 →
TRIP 2 → TRIP F To reset a tripmeter, select it by push-
ing the “SELECT” button and then
push and hold the “RESET” button.
If you do not reset the fuel reserve trip-
meter manually, it resets itself auto-
matically and the display returns to the
prior mode after refueling and traveling
5 km (3 mi).
O
dometer mo de
The odometer shows the total distance
traveled by the vehicle. It will lock at
999999 and cannot be reset.
1. OdometerZAUM1575
1
UB6GE1E0.book Page 7 Thursday, July 30, 2020 1:08 PM

Periodic maintenance an d a djustment
6-3
6
EAU71021
TIP The annual checks must be performe d every year, except if a distance- based maintenance is performe d in-
stea d.
 From 30000 km (17500 mi), repeat the maintenance intervals starting from 6000 km (3500 mi).
 Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and tech-
nical skills.
EAU71041
Perio dic maintenance chart for the emission control systemNO. ITEM CHECK OR MAINTENANCE JOB ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 6000 km
(3500 mi) 12000 km
(7000 mi) 18000 km
(10500 mi) 24000 km
(14000 mi)
1 *Fuel line • Check fuel hoses for cracks or
damage.
• Replace if necessary. √√√√√
2 *Spark plu g • Check condition.
• Adjust gap and clean.
√√
•Replace. √√
3 *Valve clearance • Check and adjust. √√√√
4 *Fuel injection • Check and adjust engine idle
speed. √√√√√√
5 *Exhaust system • Check for leakage.
• Tighten if necessary.
• Replace gasket if necessary. √√√√√
6 *Evaporative emis-
sion control system • Check control system for dam-
age.
• Replace if necessary. √√
UB6GE1E0.book Page 3 Thursday, July 30, 2020 1:08 PM

Periodic maintenance an d a djustment
6-4
6
EAU71342
General maintenance an d lu brication chartNO. ITEM CHECK OR MAINTENANCE JOB ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 6000 km
(3500 mi) 12000 km
(7000 mi) 18000 km
(10500 mi) 24000 km
(14000 mi)
1 *Dia
gnostic system
check • Perform dynamic inspection us-
ing Yamaha diagnostic tool.
• Check the error codes. √√√√√√
2 *Air filter element • Replace. √√
3 Air filter case check
hose • Clean.
√√√√√
4Clutch • Check operation.
•Adjust.
√√√√√
5 *Front brake • Check operation, fluid level, and
for fluid leakage.
• Replace brake pads if necessary. √√√√√√
6 *Rear brake • Check operation, fluid level, and
for fluid leakage.
• Replace brake pads if necessary. √√√√√√
7 *Brake hoses • Check for cracks or damage.
√√√√√
• Replace. Every 4 years
8 *Brake flui d • Change. Every 2 years
9 *Wheels • Check runout and for damage.
• Replace if necessary. √√√√
10 *Tires • Check tread depth and for dam-
age.
• Replace if necessary.
• Check air pressure.
• Correct if necessary. √√√√√
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Periodic maintenance an d a djustment
6-5
6
11 *Wheel bearin gs • Check bearing for looseness or
damage. √√√√
12 *Swin
garm pivot
b earin gs • Check operation and for exces-
sive play. √√√√
• Lubricate with lithium-soap- based grease. Every 24000 km (14000 mi)
13 Drive chain • Check chain slack, alignment and
condition.
• Adjust and lubricate chain with a special O-ring chain lubricant
thoroughly. Every 1000 km (600 mi) and after washing the motorcycle, riding in the rain or
riding in wet areas
14 *Steerin g b earin gs • Check bearing assemblies for
looseness. √√√√
• Moderately repack with lithium- soap-based grease. √
15 *Chassis fasteners • Make sure that all nuts, bolts and
screws are properly tightened. √√√√√
16 Brake lever pivot
shaft
• Lubricate with silicone grease.
√√√√√
17 Brake ped
al pivot
shaft • Lubricate with lithium-soap-
based grease. √√√√√
18 Clutch lever pivot
shaft • Lubricate with lithium-soap-
based grease. √√√√√
19 Shift pe
dal pivot
shaft • Lubricate with lithium-soap-
based grease. √√√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 6000 km
(3500 mi) 12000 km
(7000 mi) 18000 km
(10500 mi) 24000 km
(14000 mi)
UB6GE1E0.book Page 5 Thursday, July 30, 2020 1:08 PM

Periodic maintenance an d a djustment
6-6
6
20 Si destan d • Check operation.
• Lubricate with lithium-soap-
based grease. √√√√√
21 *Sidestan d switch • Check operation and replace if
necessary. √√√√√√
22 *Front fork • Check operation and for oil leak-
age.
• Replace if necessary. √√√√
23 *Shock a
bsor ber as-
sem bly • Check operation and for oil leak-
age.
• Replace if necessary. √√√√
24 *Rear suspension re-
lay arm an
d con-
nectin g arm
pivotin g points • Check operation.
√√√√
• Lubricate with lithium-soap- based grease. √√
25 En gine oil • Change (warm engine before
draining).
• Check oil level and vehicle for oil leakage. At the initial interval and
every 3000 km (1800 mi) thereafter. √
26 En
gine oil filter ele-
ment • Replace.
√√√√√
27 *Coolin g system • Check coolant level and vehicle
for coolant leakage. √√√√√
• Change. Every 3 years
28 *Front an
d rear
b rake switches • Check operation.
√√√√√√
29 *Movin
g parts an d
cab les • Lubricate.
√√
√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 6000 km
(3500 mi) 12000 km
(7000 mi) 18000 km
(10500 mi) 24000 km
(14000 mi)
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Periodic maintenance an d a djustment
6-7
6
EAU72750
TIP The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
 Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.30 *Throttle g
rip hous-
in g an d ca ble • Check operation and free play.
• Adjust the throttle cable free play
if necessary.
• Lubricate the throttle grip housing and cable. √√√√√
31 *Li
ghts, si gnals an d
switches • Check operation.
• Adjust headlight beam.
√√√√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 6000 km
(3500 mi) 12000 km
(7000 mi) 18000 km
(10500 mi) 24000 km
(14000 mi)
UB6GE1E0.book Page 7 Thursday, July 30, 2020 1:08 PM