Yamaha MT09N, Owner'S Manual

Page: 73 / 116

Perio d ic maintenance an d a d justment
8-13
8
EAUS1203
Coolant
The coolant level should be checked
regularly. In addition, the coolant must
be changed at the intervals specified in
the periodic maintenance chart.
TIP
If genuine Yamaha coolant is not avail-
able, use an ethylene glycol antifreeze
containing corrosion inhibitors for alu-
minum engines and mix with distilled
water at a 1:1 ratio.
EAU20097
To check the coolant level
Since the coolant level varies with en-
gine temperature, check when the en-
gine is cold.
1. Park the vehicle on a level surface.
2. With the vehicle in an upright posi-
tion, look at the coolant level in the
reservoir.
3. If the coolant is at or below the
minimum level mark, remove the
coolant reservoir cap.
WARNING!
Remove only the coolant reser-
voir cap. Never attempt to re-
move the ra
d iator cap when the
en g ine is hot.
[EWA15162]
4. Add coolant to the maximum level
mark.
NOTICE:
If coolant is not
availa b le, use d istille d water or
soft tap water instea d . Do not
use har d water or salt water
since it is harmful to the en g ine.
If water has b een use d instea d
of coolant, replace it with cool-
ant as soon as possi
b le, other-
wise the coolin g system will not
b e protecte d a g ainst frost an d
corrosion. If water has b een
a dd e d to the coolant, have a
Yamaha d ealer check the anti-
freeze content of the coolant as
soon as possi
b le, otherwise the
effectiveness of the coolant will
b e re d uce d .
[ECA10473]
Recommen d e d coolant:
YAMALUBE coolant
Coolant quantity:
Coolant reservoir (max level mark):
0.28 L (0.30 US qt, 0.25 Imp.qt)
Radiator (including all routes):
1.72 L (1.82 US qt, 1.51 Imp.qt)
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
1 1 1
2
3
2
3
1. Coolant reservoir cap
1 1 1
UB7N11E0.book Page 13 Tuesday, August 31, 2021 5:08 PM