Yamaha YZF-R1S Owner's Manual download pdf (Page 63)

PERIODIC MAINTENANCE AND MINOR REPAIR

6-15

3. If the coolant is at or below the

minimum level mark, remove the

brake fluid reservoir bracket

screw, remove the coolant reser-

voir cap, and then add coolant to

the maximum level mark.

CAUTION:

ECA10470

● If coolant is not available, use

distilled water or soft tap water

instead. Do not use hard water

or salt water since it is harmful

to the engine.

● If water has been used instead

of coolant, replace it with cool-

ant as soon as possible, other-

wise the engine may not be

sufficiently cooled and the cool-

ing system will not be protected

against frost and corrosion.

● If water has been added to the

coolant, have a Yamaha dealer

check the antifreeze content of

the coolant as soon as possible,

otherwise the effectiveness of

the coolant will be reduced.

WARNING

EWA10380

Never attempt to remove the radiator

cap when the engine is hot.

4. Install the coolant reservoir cap,

and then install the brake fluid res-

ervoir bracket screw.

NOTE:

● The radiator fan is automatically

switched on or off according to the

coolant temperature in the radia-

tor.

● If the engine overheats, see page

6-44 for further instructions.

EAU33030

Changing the coolant

WARNING

EWA10380

Never attempt to remove the radiator

cap when the engine is hot.

1. Maximum level mark

2. Minimum level mark

1. Brake fluid reservoir bracket screw

1. Coolant reservoir cap

Coolant reservoir capacity (up to the

maximum level mark):

0.25 L (0.26 US qt) (0.22 Imp.qt)

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Yamaha YZF-R1S Owner's Manual Page 63

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