Transmission oil level check

1. Warm up the engine for several minutes.

2. To check the oil level, the motorcycle
must stand VERTICALLY with its both
wheels on the ground. A slight tilt toward
the side can produce false readings.

3. With the engine stopped, check the oil
level through the level window located at
the right side crankcase cover.

4. The oil level should be between the high
and low level on the level window. If the
level is low, add sufficient oil to raise it
to the proper level.

1. Level window 2 Maximum level 3. Minimum level

Recommended oil:

SAE 10W30 type SE motor oil Oil quantity:

0.8 L (0.7 Imp qt, 0.9 US qt)

6-7

EUU34900

Do not add any chemical additives. Trans­mission oil also lubricates the clutch and additives could cause clutch slippage.

EIHJ32400

Be sure no foreign material enters the crankcase.

1 Drain plug

4. Reinstall the drain plug (make sure it is tight).

H-446

Transmission oil replacement

1. To drain the oil, warm up the engine for
several minutes.

2. Place an oil pan under the engine.

3. Remove the drain plug and drain the oil.

Drain plug torque:

15 Nm (1 5 nvkg, 11 ft.(b)

6-8

5. Add oil through the oil filter hole.

1 Oil filler cap

Periodic oil change: 0.75 L (0.66 Imp qt, 0.79 US qt)

EAHS1300

Cooling system

The coolant is circulated by an impeller type pump mounted on the right-hand crankcase and driven by a gear. The coolant is drawn by the pump from the bottom tank of the radia­tor, through the piped), and discharged into the cylinder and cylinder-head. The coolant passes from the cylinder to the cylinder-head through coolantpassages. After circulating around the combustion chamber jacket, it enters the radiator upper tank via the pipe(2). The heated coolant from the engine then pass­es down through the finned tubes to the bot­tom tank of the radiator. These finned tubes present a large surface area to the air and dis­sipate the heat.

6. After replacement of transmission oil, be sure to check for oil leaks.

6-9

1. If your motorcycle overheats

EUU70500

WVARNING:

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. When opening the radiator cap, note the following points. Wait until the engine has cooled. Place a thick rag like a towel over the radiator cap and slowly rotate the cap counterclockwise to the detent. This procedure allows any residual pressure to escape. When the hissing sound has stopped, press down on the cap while turning counterclockwise and remove it.

If overheating is detected, perform the follow­ing checks.

6-10

I Engine overheating

Check the cooling system for leakage.

Wait until the temp gauge indicates lower than 50°C (122°F) line (see page 3-7)

No leakage

OK

Restart the engine If the engine overheats again, ask a Yamaha dealer to inspect and repair it,

EUU04300

NOTE:

If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that it is changed to the recommended coolant as soon as possible.

2. Changing the coolant a. Remove the air scoop and side cover.

6-11

b. Remove the stopper bolt and then remove the radiator cap.

1 Stopper bolt

c. Place a container under the engine.

d. Remove the drain bolt.

1 Dram bolt

e. Disconnect the reservoir tank hose on the reservoir tank side, and drain the reser­voir tank of its coolant.

6-12

1 Reservoir tank hose 2. "FULL" level 3. "LOW" level

f. Drain the coolant completely and
thoroughly flush the cooling system with
clean tap water.

g. Retighten the drain bolt. If the gasket is
damaged, replace it.

Drain bolt torque:

10 Nm {1.0 nrkg, 7.2 ft-lb)

h. Reinstall the reservoir tank hose, i. Pour the recommended coolant into the radiator until the radiator is full.

Recommended coolant:

High quality ethylene glycol anti­freeze containing corrosion inhibitors for aluminum engines.

Coolant and water mixed ratio: 50%/50%

Total amount:

1.200 cm³ (1.06 Imp qt, 1.27 US qt)

Reservoir tank capacity: 300 cm³ (0.26 Imp qt, 0.32 US qt)

From LOW to FULL level:

240 cm³ (0.21 Imp qt, 0.25 US qt)

6-13

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