2021 YAMAHA MT-125 engine

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Page 50 of 94

YAMAHA MT-125 2021  Owners Manual Periodic maintenance an d a djustment
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6
20 Si destan d • Check operation.
• Lubricate with lithium-soap-
based grease. √√√√√
21 *Sidestan d switch • Check operation and replace if

Page 52 of 94

YAMAHA MT-125 2021  Owners Manual Periodic maintenance an d a djustment
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EAU18782
Removin g an d installin g cowl-
in gsThe cowlings shown need to be re-
moved to perform some of the mainte-
nance jobs described in this chapter.

Page 54 of 94

YAMAHA MT-125 2021  Owners Manual Periodic maintenance an d a djustment
6-10
6
EAUM2584
En gine oil an d oil filter ele-
mentThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil fil

Page 55 of 94

YAMAHA MT-125 2021  Owners Manual Periodic maintenance an d a djustment
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4. Clean the engine oil strainer with solvent.
TIPSkip steps 5–7 if the oil filter element is
not being replaced.5. Remove the oil filter element coverby

Page 56 of 94

YAMAHA MT-125 2021  Owners Manual Periodic maintenance an d a djustment
6-12
6 9. 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

Page 57 of 94

YAMAHA MT-125 2021  Owners Manual Periodic maintenance an d a djustment
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6
EAUS1203
CoolantThe coolant level should be checked
regularly. In addition, the coolant must
be changed at the intervals specified in
the periodic maintena

Page 59 of 94

YAMAHA MT-125 2021  Owners Manual Periodic maintenance an d a djustment
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2. If dirt or water is visible, remove
the hose, clean it, and then install
it.
EAU34302
Adjustin g the en gine i dlin g 
spee dThe engine idling speed mus

Page 60 of 94

YAMAHA MT-125 2021  Owners Manual Periodic maintenance an d a djustment
6-16
6
EAU48434
A djustin g the throttle  grip free 
playMeasure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if nece
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