CFMoto motorcycle CF650NK. Service Manual - part 4

Install the air valve cap.
Drive chain

…… … ……

Slack 30~40mm

, 

lubricate

 

drive

 

chain

 

if

 

dry

. 

Nuts, bolts,fasteners

…

Check that steering and suspension components, axles, 

and all controls areproperly tightened or fastened. 

Steering

… ……… … … 

Action smooth but not loose from lock to lock.

 No binding of control cables. 

Brakes

… ……… … …  

Brake pad wear: Lining thickness more than 1 mm

 

left

.

No brake fluid leakage. 

Throttle 

…… … ……… 

Throttle grip play 2~3mm

.

Clutch

…… ……… … … 

Clutch lever play 2~3mm

，

clutch lever operates smoothly. 

Coolant

… … ……… …  

No coolant leakage.

 Coolant level between level lines(when engine is cold). 

Electrical

 

equipment

…

All

 

lights(Headlight,Tail/Brake

 

Lights,Turn Signal

 

Lights,

 

Warning/Indicator Lights) and horn work.

Engine stop switch

……

Stop engine.

Side stand

… ……… … 

Return spring not weak or not damaged.

Refer to all caution labels attached to the motorcycle. 

…

…

…

Additional Considerations for High Speed Operation

Brakes: 

The

 

importance

 

of

 

the

 

brakes

, 

especially

 

during

 

high

 

speed operation, cannot be 

overemphasized. Check to see that they are correctly adjusted and functioning properly.

-43-

Steering：

 

Looseness in the steering can cause loss of control. Check to see that the handlebar

 turns freely but has no play.

 

Tires：

High speed operation is hard on tires, and good tires are crucial for riding safety. Examine

 their overall condition, inflate them to the proper pressure, and check the wheel balance.

 

Fuel：

Have sufficient fuel for the high fuel consumption during

 

High

 

speed

 

operation

.

Engine oil：

To avoid engine seizure and resulting in loss of control, make sure the oil level Is between

 level lines, better in the middle.

Coolant：

To avoid overheating, check that the coolant level is between level lines.

Electrical Equipment：

Make sure that the headlights, tail/brake light, turn signals, horn,etc., all

 work properly.

 

Fasteners：

Make sure that all nuts and bolts are tight and that all safety related parts are in good

 

condition

. 

WARNING

Handling characteristics od a motorcycle at high speeds may vary from those you are

 familiar with at legal highway speeds. Do not attempt high speed operation unless you 

have received sufficient training and have the required skills. It is forbidden to ride a

 motorcycle on highway in China. 

-44-

MAINTENANCE AND ADJUSTMENT

The maintenance and adjustment outlined in this chapter must be carried out and must be done in

 accordance with the Periodic Maintenance Chart to keep the motorcycle in good running condition. 

The initial maintenance is vitally import and must not be neglected.

 

 

With a basic knowledge of mechanics and the proper use of tools

,

you should be able to carryout

 

many of the maintenance items described in this chapter. If you lack proper experience or doubt your 

ability, all adjustments, maintenance, and repair work should be completed by a qualified technician.

 You can contact your dealer for help if you have other questions

. 

Periodic Maintenance Chart

■ ：

*：
#：

Should be serviced by an authorized CFMOTO dealer. 

For higher odometer readings, repeat at the frequency interval established here.

Service more frequently when operating in severe conditions: dusty, wet, muddy, high speed,or 

frequent starting/stopping.

1. Periodic Inspection(Engine Related Items) 

-45-

■

■

■

■

■

42000km

↓

→

*

km

×

1000

1   6  12 18  24 30  36

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

66

65

67

69

-

-

-

■

●

Frequency

Operation(Engine Item)

Air cleaner element

—

clean

Valve clearance

—

inspect

Throttle control system 

（

play,smooth

 return

）

—

inspect

Idle speed

—

inspect

Fuel leak

（

fuel hose and pipe

）

—

inspect

Fuel hoses damage

—

inspect

Fuel hoses installation

—

inspect

Throttle body

—

clean

Whichever
 comes 
first

Odometer Reading

See
Page

Every 

year

year

year

year

-46-

● ● ● ● ●

↓

→

1   6  12 18  24 30  36

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

61

63

58

■

64

*

km

×

1000

Frequency

Operation(Engine Item)

Whichever
 comes 
first

Odometer Reading

See
Page

Every 

year

year

year

Coolant level

—

inspect

Coolant leak

—

inspect

Radiator hose damage

—

inspect

Radiator hose installation

—

inspect

air suction system damage

—

inspect

-47-

-

2. Periodic Inspection

（

Chassis Related Items

）

↓

→

*

km

×

1000

1   6  12  18 24 30  36

●

●

●

●

●

●

●

■

■

600km

1000km

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

70

72

72

74

92

93
93

99

-

-

●

Frequency

Operation(Chassis items)

Whichever
 comes 
first

Odometer Reading

See
Page

Every 

Clutch and drive chain

Clutch operation

（

play, engagement, 

disengagement

）

—

inspect

Drive chain lubrication condition

—

inspect#

Drive chain slack

—

inspect #

Drive chain wear

—

inspect #

Drive chain guide wear

—

inspect

Wheels and tires:

Tire air pressure

—

inspect

Wheels/tires damage

—

inspect

Tire tread wear, abnormal wear

—

inspect

wheel bearing damage

—

inspect

Pedal

—

lubricate

year

year

-48-

Frequency

Operation(Chassis )

Whichever
 comes 
first

Odometer Reading

See
Page

Every 

year

↓

→

*

km

×

1000

1   6  12 18  24  30  36

●

●

●

●

●

●

●

81

81

80

44

85

87

87

●
●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●
●

●

●

●

●

●

●

●

●

●

●

●

●

●

●
●

●

●

●

●

●

●

●

●

●

●

●

●

●

45

81

year

year

year

year

6 month

Brake system

Brake fluid leak

—

inspect

Brake hoses and pipe damage

—

inspect

Brake pad wear

—

inspect #

Brake hose installation

—

inspect

Brake fluid level

—

inspect

Brake operation

（

effectiveness, play, drag

）

—

inspect

Brake light switch operation

—

inspect

Suspensions:

Front forks/rear shock absorber operation

（

damping and smooth stroke

）

—

inspect

Front forks / rear shock absorber oil leak

—

inspect

-49-

●

Frequency

Operation(Chassis )

Whichever
 comes 
first

Odometer Reading

See
Page

Every 

year

↓

→

*

km

×

1000

1   6  12 18  24 30  36

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

100

-

-

■

■

■

■

●

●

-

-

-

-

-

year

year

year

year

year

year

2year

Steering System

steering play

—

inspect

steering stem bearings

—

lubricate

Electrical System

Lights and switches operation

—

inspect

Headlight aiming

—

inspect

Side stand switch operation

—

inspect

Engine stop switch operation

—

inspect

Chassis 

Chassis parts

—

lubricate

Bolts and nuts tightness

—

inspect

-50-

Frequency

Whichever
 comes 
first

Odometer Reading

See
Page

Every 

↓

→

*

km

×

1000

1   12   24   36   48  

●

●

●

●

●

●

●

●

●

●

59

-

-

-

■

■

■

■
■

■
■
■

●

66

52

54

-

81

63

2year

2year

2year

2year

4year

4year

4year

Change/Replacement Item

Air cleaner element#

Engine oil#

Oil filter

Fuel hoses

Coolant

Radiator hoses

Brake hoses and pipe

Brake fluid

（

front/rear

）

Rubber parts of master cylinder and caliper

 

Spark plug

-51-

Six months

Six months

For each 6000km

For each 6000km

Engine Oil

In order for the engine, transmission, and clutch to function properly, maintain the engine oil at the

 proper level, and change the oil and replace the oil filter in accordance with the Periodic Mainten-

ance Chart. Not only do dirt and metal particles collect in the oil, but the oil itself loses its lubricative 

quality id used too long. 

WARNING

Motorcycle operation with insufficient, deteriorated or contaminated engine oil 
will cause accelerated wear and may result in engine or transmission seizure, 
accident, and injury.

Oil Level Inspection

If the oil has just been changed, start the engine and run it for several minites at idle speed. This

 fills the oil filter with oil. Stop the engine, then wait several minutes until the oil settles.

CAUTION

Racing the engine before the oil reaches every part can cause engine seizure.

If the motorcycle has just been used, wait several minutes for all the oil to drain down.

-52-

Check the engine oil level through the oil level gauge. With the

 

motorcycle held level

,

the oil level

 

should come up between the upper and lower level lines next to the gauge

.

If the oil level is too high, remove the excess oil throu the oil filler opening using a syringe or some

 other suitable device.

If the oil level is too low

,

add the oil to reach the correct level

.

Use the same type and brand of oil

  that is already in the engine

. 

B

C

D

A

Oil

 

level

 

gauge

   

  Upper

 

level

 

line

   

Lower

 

level line

Oil filler opening

-53-

CAUTION

If the engine oil gets extremely low or if the oil pump does not function properly 
or oil passages are clogged, the warning light will be on. If the light stays on ,stop 
the engine immediately and find the cause.

A

Oil Pressure Warning Light

Oil and Oil Filter Change

pack the bike on the level ground.

Warm up the engine thoroughly , and then stop it. 

Place an oil pan beneath the engine. 

Remove the engine oil drain plug.
Let the oil completely drain.

B

Drain Plug & Washer

-54-

DANGER

Motor oil is a toxic substance. Dispose of used oil properly .

Remove the oil filter and replace it with a new one.

WARNING

Contact your local dealer to get special tools 

A

Oil filter

-55-

Apply a thin film of oil to the packing and tighten the cartridge to the specified torque.

A

Apply a thin film

Replace any gaskets with new ones 

before install the drain plug

 

Warning

Replace any gaskets with new ones 

Fill the engine between upper and lower

 level line with a good quality engine oil 

as bellow.
Start the engine.
Check the oil level and oil leakage.

Tightening Torque

Engine oil Drain Plug: 30N.m

Oil filter: 17.2N.m

Recommended Engine Oil:

Type

：

API SG or above

Viscosity

：

SAE 15W-40

-56-

Engine Oil Capacity：

   

When filter is not removed

：

2.0L

   

When

 

filter

 

is

 

removed

：

2.2L

   

When engine is completely dry

：

2.6L

Although 15W-40

 

engine oil is the recommended oil for most conditions

,

the oil viscosity may need

 to be changed to accommodate atmospheric condition in your riding area.

SAE  20W-50

SAE  20W-40

SAE  10W-50

SAE  10W-40

SAE  10W-30

-20  -10  

0   10  

20   30   40(

℃

)

-

4   14  

32   50   68   86  104(   )

。

F

-57-

Cooling System

Radiator and Cooling Fan

Check the radiator fins for obstruction by insects or mud

,

Clean off any obstructions with a stream

 

of low

-

pressure water

.

WARNING

Keep your hands and clothing away from the fan blades when it's 
working.

CAUTION 

Using high-pressure water could damage the radiator fans and impair the radiator's
 effectiveness. Do not obstruct or deflect airflow through the radiator by installing
 unauthorized accessories in front of the radiator or behind the cooling fan. Interference
 with the radiator airflow can lead to overheating and consequent engine damage.

Radiator Hoses

Check the radiator hoses for leakage, cracks or deterioration, and connections for leakage or loos-

eness each day before riding the motorcycle, and in accordance with Periodic Maintenance Chart 

-58-