2021 YAMAHA YFM700R radiator cap

9-19
92. Wait for the engine to cool for an accurate
reading.
3. Look at the coolant level in the coolant reser- voir.
4. If the coolant is at or below the minimum level mark, remove the coolant reservoir cap.
WARNING! Remove only the coolant res-
ervoir cap. Never attempt to remove the
radiator cap when the engine is hot.
[EWB02672]
5. Add coolant to the maximum level mark, andthen install the reservoir cap. NOTICE: If
coolant is not available, use distilled water
or soft tap water instead. Do not use hard
water or salt water since they are harmful
to the engine. If water has been used in-
stead of coolant, replace it with coolant as
soon as possible, otherwise the cooling
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 effective-
ness of the coolant will be reduced.
[ECB01012]
1. Maximum level mark
2. Minimum level mark
12
1. Coolant reservoir cap
1
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9-20
9
EBU23546To change the coolant
WARNING
EWB01891Wait for the engine and radiator to cool before
removing the radiator cap. You could be
burned by hot fluid and steam blown out under
pressure. Always place a thick rag over the cap
when opening. Allow any remaining pressure
to escape before completely removing the cap. 1. Park the ATV on a level surface.
2. Remove panel A. (See page 9-10.)
3. Place a container under the engine, and thenremove the coolant drain bolt and its gasket. 4. Remove the radiator cap.
1. Coolant drain bolt
2. Gasket
1. Radiator cap
1
2
1
UBCX61E0.book Page 20 Friday, January 22, 2021 1:54 PM

9-21
95. Remove the coolant reservoir cap.
6. Disconnect the coolant reservoir hose on the
coolant reservoir side, and then drain the
coolant from the coolant reservoir.
7. After draining the coolant, thoroughly flush the cooling system with clean tap water.
8. Install the coolant drain bolt and its new gas- ket, and then tighten the bolt to the specified
torque. 9. Connect the coolant reservoir hose.
10. Pour the recommended coolant into the res- ervoir to the maximum level mark, and then
install the reservoir cap.
11. Pour the recommended coolant into the radi- ator until it is full, and then install the radiator
cap.
12. Start the engine, let it idle for several minutes, and then turn it off.
TIPWhile the engine is idling, check the cooling sys-
tem for leaks. 13. When the engine is cool, remove the radiatorcap to check the coolant level in the radiator.
If it is low, add sufficient coolant until it reach-
es the top of the radiator, and then install the
radiator cap.
14. Install the panel.EBU2680BCleaning the air filter elementThe air filter element should be cleaned at the in-
tervals specified in the periodic maintenance
chart. Clean or, if necessary, replace the air filter
element more frequently if you are riding in unusu-
ally wet or dusty areas.
1. Coolant reservoir cap
2. Coolant reservoir hoseTightening torque: Coolant drain bolt:11 N·m (1.1 kgf·m, 8.1 lb·ft)
1
2
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9-56
9
Engine overheating
WARNING
EWB02291Wait for the engine and radiator to cool before removing the radiator cap. You could be burned by
hot fluid and steam blown out under pressure. Always put a thick rag over the cap when opening.
Allow any remaining pressure to escape before completely removing the cap. TIP
Tap water can be used in an emergency. Change to the recommended coolant as soon as possible.
 The engine will tend to overheat if the radiator is caked with mud, or if the ATV is overloaded. Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer check
and repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check and repair the cooling system.
There is
leakage.
There is
no leakage.
UBCX61E0.book Page 56 Friday, January 22, 2021 1:54 PM

11-2
11
Starting system:Electric starter
Lubrication system: Dry sumpEngine oil:Recommended brand:
SAE viscosity grades:
5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50
Recommended engine oil grade: API service SG type or higher, JASO standard MA
Quantity: Oil change: 1.75 L (1.85 US qt, 1.54 Imp.qt) With oil filter removal:
1.85 L (1.96 US qt, 1.63 Imp.qt)
Coolant quantity:Radiator (including all routes):
1.68 L (1.78 US qt, 1.48 Imp.qt)
Coolant reservoir (up to the maximum level mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)Air filter:Air filter element:
Wet element
Air filter oil grade: Foam air-filter oilFuel:Recommended fuel:
Regular unleaded gasoline (Gasohol [E10] acceptable)
Minimum research octane: 91
Fuel tank capacity: 11 L (2.9 US gal, 2.4 Imp.gal)
Fuel reserve amount:
1.6 L (0.42 US gal, 0.35 Imp.gal)Throttle body:ID mark:1S3HSpark plug (s):Manufacturer/model:NGK/CR8E
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)
0 10 30 50 70 90 110 130 ˚F
–20 –10 0 10 20 30 40 50 ˚CSAE 5W-30
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40SAE 20W-50
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11-4
11
Front suspension:Type:Double wishbone
Spring:
Coil spring
Shock absorber: Gas-hydraulic damper
Wheel travel: 230 mm (9.1 in)Rear suspension:Type:Swingarm (link suspension)
Spring: Coil spring
Shock absorber:
Gas-hydraulic damper
Wheel travel: 256 mm (10.1 in)Electrical system:System voltage:
12 V
Ignition system: TCI
Charging system: AC magnetoBattery:Model:GT9B-4
Voltage, capacity: 12 V, 8.0 Ah
Lights:Headlight:T19L, 30.0 W/30.0 W
Brake/tail light:
LED
Neutral indicator light: LED
Fuel level warning light: LED
Reverse indicator light:
LED
Coolant temperature warning light: LED
Engine trouble warning light: LEDFuses:Main fuse:30.0 A
Headlight fuse: 10.0 A
Signaling system fuse:
10.0 A
Ignition fuse: 10.0 A
Fuel injection system fuse: 10.0 A
Radiator fan motor fuse:
20.0 A
UBCX61E0.book Page 4 Friday, January 22, 2021 1:54 PM