FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-1
4
EAU15596
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11151
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in
this manual, have the vehicle inspected by a Yamaha dealer.Before using this vehicle, check the following points:
ITEMCHECKS PAGE
Fuel Check fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.
Check fuel tank breather hose and overflow hose for obstructions, cracks or dam-
age, and check hose connections. 3-16, 3-17
Engine oil Check oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage. 6-10
Coolant Check coolant level in reservoir.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage. 6-13
Front brake Check operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add specified brake fluid to specified level.
Check hydraulic system for leakage. 6-24, 6-25
U20SE3E0.book Page 1 Monday, April 23, 2012 10:47 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-6
6
19*Front fork Check operation and for oil leak-
age. √√√√
20 *Shock absorber as-
sembly Check operation and shock ab-
sorber for oil leakage. √√√√
21 Engine oil Change.
Check oil level and vehicle for oil
leakage. √√√√√√
22 Engine oil filter car-
tridge Replace.
√√√
23 *Cooling system Check coolant level and vehicle
for coolant leakage. √√√√√
Change with ethylene glycol anti- freeze coolant. Every 3 years
24 *Front and rear brake
switches Check operation.
√√√√√√
25 Moving parts and
cables
Lubricate.
√√√√√
26 *Throttle grip Check operation.
Check throttle grip free play, and
adjust if necessary.
Lubricate cable and grip housing. √√√√√
27 *Lights, signals and
switches Check operation.
Adjust headlight beam.
√√√√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 10000 km
(6000 mi) 20000 km
(12000 mi) 30000 km
(18000 mi) 40000 km
(24000 mi)
U20SE3E0.book Page 6 Monday, April 23, 2012 10:47 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6
4. Add coolant to the maximum level
mark, and then install the coolant
reservoir cap. WARNING! Re-
move only the coolant reservoir
cap. Never attempt to remove
the radiator cap when the en-
gine is hot.
[EWA15161]
NOTICE: If
coolant is not available, use dis-
tilled water or soft tap water in-
stead. 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 coolant as soon as possi-
ble, otherwise the cooling sys-
tem 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.
[ECA10472]
5. Route the coolant reservoir breath-
er hose through the guide as
shown.
EAU46822
To change the coolant1. Place the vehicle on a level sur- face and let the engine cool if nec-
essary.
2. Remove cowling A and panel B. (See page 6-8.)
3. Place a container under the engine to collect the used coolant.
4. Remove the radiator cap retaining bolt, radiator cap retainer and radi-
ator cap. WARNING! Never at-
tempt to remove the radiator
cap when the engine is hot.
[EWA10381]
1. Coolant reservoir cap
2. Coolant reservoir breather hose
3. Guide
3
1
2
Coolant reservoir capacity (up to
the maximum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
1. Coolant reservoir breather hose
2. Guide
2
1
1. Radiator cap
2. Radiator cap retaining bolt
3. Radiator cap retainer
2
1
3
U20SE3E0.book Page 14 Monday, April 23, 2012 10:47 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
65. Remove the coolant reservoir
breather hose from the guide, and
then remove the coolant reservoir
cap.
6. Remove the coolant reservoir cov- er and coolant reservoir by remov-
ing the bolts. 7. Drain the coolant from the coolant
reservoir by turning it upside down.
8. Remove the coolant drain bolt and its gasket to drain the cooling sys-
tem. 9. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
10. Install the coolant drain bolt and its new gasket, and then tighten the
bolt to the specified torque.
11. Install the coolant reservoir and its cover by placing them in the origi-
nal position, and then installing the
bolts.
12. Pour the specified amount of the recommended coolant into the ra-
diator and reservoir.
1. Coolant reservoir cap
2. Coolant reservoir breather hose
3. Guide
3
1
2
1. Bolt
2. Coolant reservoir cover
3. Coolant reservoir
1. Coolant drain bolt
2. Gasket
23
1
2
1
Tightening torque:
Coolant drain bolt:10 Nm (1.0 m·kgf, 7.2 ft·lbf)
U20SE3E0.book Page 15 Monday, April 23, 2012 10:47 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6
13. Install the radiator cap.
14. Install the coolant reservoir cap.
15. Start the engine, let it idle for sev-
eral minutes, and then turn it off.
16. Remove the radiator cap to check the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap, radiator cap retainer and radi-
ator cap retaining bolt. 17. Check the coolant level in the res-
ervoir. If necessary, remove the
coolant reservoir cap, add coolant
to the maximum level mark, and
then install the cap.
18. Route the coolant reservoir breath- er hose through the guide as
shown. 19. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
20. Install the cowling and the panel.
Antifreeze/water mixture ratio: 1:1
Recommended antifreeze: High-quality ethylene glycol anti-
freeze containing corrosion inhibi-
tors for aluminum engines
Coolant quantity:
Radiator capacity (including all
routes):2.00 L (2.11 US qt, 1.76 Imp.qt)
Coolant reservoir capacity (up to the
maximum level mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
1. Radiator cap
2. Radiator cap retaining bolt
3. Radiator cap retainer
2
1
3
1. Coolant reservoir breather hose
2. Guide
2
1
U20SE3E0.book Page 16 Monday, April 23, 2012 10:47 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-47
6Engine overheating
WARNING
EWA10400
●
Do not remove the radiator cap when the engine and
radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
●
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissing
sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible.
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 checkand 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.
U20SE3E0.book Page 47 Monday, April 23, 2012 10:47 AM
SPECIFICATIONS
8-1
8
Dimensions:Overall length:2120 mm (83.5 in)
Overall width:
770 mm (30.3 in)
Overall height: 1085 mm (42.7 in)
Seat height: 785 mm (30.9 in)
Wheelbase:
1440 mm (56.7 in)
Ground clearance: 140 mm (5.51 in)
Minimum turning radius: 2800 mm (110.2 in)Weight:Curb weight:XJ6N 205 kg (452 lb)
XJ6NA 210 kg (463 lb)Engine:Engine type:Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Inline 4-cylinder
Displacement: 600 cm³
Bore × stroke:
65.5 × 44.5 mm (2.58 × 1.75 in)
Compression ratio:
12.20 : 1
Starting system: Electric starter
Lubrication system: Wet sump
Engine oil:Recommended brand:YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade: API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter cartridge replacement:2.50 L (2.64 US qt, 2.20 Imp.qt)
With oil filter cartridge replacement:
2.80 L (2.96 US qt, 2.46 Imp.qt)Cooling system:Coolant reservoir capacity (up to the
maximum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator capacity (including all routes): 2.00 L (2.11 US qt, 1.76 Imp.qt)Air filter:Air filter element:Oil-coated paper element
Fuel:Recommended fuel:Regular unleaded gasoline only
Fuel tank capacity:
17.3 L (4.57 US gal, 3.81 Imp.gal)
Fuel reserve amount: 3.2 L (0.85 US gal, 0.70 Imp.gal)Fuel injection:Throttle body:
ID mark:20SF 20Spark plug(s):Manufacturer/model: NGK/CR9E
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:Wet, multiple-discTransmission:Primary reduction ratio:
1.955 (86/44)
Final drive: Chain
Secondary reduction ratio: 2.875 (46/16)
Transmission type:
Constant mesh 6-speed
Operation: Left foot operation
Gear ratio: 1st:2.846 (37/13)
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
U20SE3E0.book Page 1 Monday, April 23, 2012 10:47 AM