CFMoto motorcycle CF650NK. Service Manual - part 6

A

Cotter Pin

NOTE

When inserting the cotter pin, if the slots in the nut do not align with the cotter pin hole
 in the axle shaft, tighten the nut clockwise up to the next alignment. It should be within
 30 degree. Loosen once and tighten again when the slot goes past the nearest hole. 

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A

Turn

 

clockwise

WARNING

If the axle nut is not securely tightened or the cotter

 pin is not installed, an unsafe riding condition may
 result. 

B

A

Rear brake Inspection 

Wear Inspection

   Remove the bolts to take off the chain guide.

Stretch the chain taut either by using the chain adjusters, 

or by hanging a 10 kg

(

20lb

) 

weight on the chain. 

   Measure the length of 20 links on the straight Part of the

st

 chain from pin center of the 1

 

pin

 

to

 

pin Center of the

st

21

 

pin

.

   If the length exceeds the service limit, the chain should be

 replaced.

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Chain cover

Bolt

Drive chain 20-Link Length
Service Limit：323mm

C

D

Measure         Weight

WARNING

For safety, use only the standard chain, It is an end-
less type and should not be cut for installation; have

 it installed by an authorized CFMOTO dealer. 

Rotate the rear wheel to inspect the drive chain for damaged rollers, and loose pins and links.

Also inspect the sprockets for unevenly or excessively worn teeth, and damaged teeth.

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NOTE

Sprocket wear is exaggerated for illustration. See Service Manual for war limits.

B

C

A

Good Teeth  

  

Worn Teeth  

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Damaged Teeth

If there is any irregularity, have the drive chain and/or the sprockets replaced by an authorized

 CFMOTO Dealer. 

Lubrication

Lubrication is also necessary after riding through rain or on wet roads, or any time that the chain 

appears dry. A heavy oil such as SAE 90 is preferred to a lighter oil because it will stay on the

 

chain longer and provide better lubrication

.

Apply oil to the sides of the rollers so that it will penetrate to the rollers and bushings.

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If the chain is especially dirty, clean it using diesel oil or kerosene and then apply oil as mentioned

 above.

Brakes wear Inspection

Inspect the brakes for wear. For each front and rear disc brake caliper, if the thickness of either pad

 is less than 1mm

,

replace both pads in the caliper as a set

.

Pad replacement should be done by an

 

authorized

 

CFMOTO

 

dearler

. 

B

A

Lining Thickeness          1mm

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Brake Fluid

In accordance with the Periodic Maintenance Chart, inspect the brake fluid level in both the front

 and rear brake fluid reservoirs and change the brake fluid. The brake fluid should also be changed

 if it becomes contaminated with dirt or water.

Fluid Requirement

 

Use heavy

-

duty brake fluid only from a container marked

.

CAUTION

Do not spill brake fluid onto any painted surface.
Do not use fluid from a container that has been left open or that has been unsealed

 for a long time.

Check for fluid leakage around the fittings.
Check brake hose for damage.

Fluid Level Inspection

The brake fluid level in the front brake fluid reservoir must be kept above the line(lower level line)

 next to the gauge and that the rear brake fluid reservoir(located near the rear fender) must be kept

 between the upper and lower lines(reservoirs held horizontal). 

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B

C

D

A

Front Brake Fluid Reservoir Cover       Upper level line      
Lower level line                    Front Brake Fluid Reservoir

B

C

A

Rear Brake Fluid Reservoir       Upper level line         

Lower level line

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If the fluid level in either reservoir is lower than the lower level line, check for fluid leaks in the

brake lines, and fill the reservoir to the upper level line. Inside the front brake fluid reservoir is a

 stepped line showing the upper level line.

WARNING

Do not mix weo brands of brake fulid. Change the brake fluid in the brake line

 completely if the brake fluid must be refilled but the type and brand of the brake
 fluid that is already in the reservoir are unidentified. 

NOTE

First, tighten until slight resistance is felt indicating that the cap is seated on the

 reservoir body; then, tighten the cap an additional 1/6 turn while holding the brake
 fluid reservoir body.

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B

C

D

A

Fluid Change

Have the brake fluid changed by an authorized CFMOTO dealer.

Front and Rear Brakes

Disc and disc pad wear is automatically compensated for and has no effect on the brake lever or

 pedal action. So there are no parts that require adjustment on the front brakes and rear brakes.

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Fluid reservoir

Cap of reservoir

Clockwise

1/16 circle

WARNING

If the brake lever or pedal feels mushy when it is applied, there might be air in the

 brake lines or the brake may be defective. Since it is dangerous to operate the 

motorcycle under such conditions, have the brake checked immediately by an

 authorized CFMOTO dealer. 

Brake Light Switches

When either the front or rear brake is applied, the brake light goes on. The front brake light switch

 requires no adjustment, but the rear brake light switch should be adjusted in accordance with the 

Periodic Maintenance Chart.

Inspection

Turn the ignition key to 

“   ”  

The brake light should go on when the front brake is applied.

If it does not, ask your authorized CFMOTO dealer to inspect the front brake light switch. 

B

A

.

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Rear brake pedal
Travel of rear brake pedal

If it does not, adjust the rear brake light switch.

Brake Pedal Travel ：10mm

Adjustment

Disconnect the connector.

To adjust the rear brake light switch, move the switch up or down by turning the switch body.

B

A

Rear Brake light Switch     
Adjusting Nut

   Connect the connector

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Front Fork

The front fork operation and oil leakage should be checked in accordance with the Periodic Maint-
enance Chart.

Front Fork Inspection

Holding the brake lever, pump the front fork up and down by several times for inspection of smooth

 stroke.

Visually inspect the front fork for oil leakage, scoring or scratches

 

on the outer surface of the inner

 tube

.

If any doubt about the front fork, it should be done by an authorized CFMOTO dealer.

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A

Inner Tube

Rear Shock Absorbers

The rear shock absorber operation and oil leakage should be checked in accordance with the

 Periodic Maintenance Chart.

Rear Shock Absorber Inspection

Press down on the seat several times to check if the rear shock absorber stroke is smooth. 

Visually inspect the rear shock absorber for oil leakage.

If any doubt about the rear shock absorber, it should be done by an authorized CFMOTO dealer.

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A

Rear Shock Absorber

The rear shock absorber can be adjusted by changing the spring preload and rebound damping force

 for various riding and loading condition.

Spring Preload Adjustment

The spring preload adjuster on the rear shock absorber has 7 position.

In accordance with the following table, turn the preload adjuster with the wrench form the tool kit.

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B

A

Spring Preload Adjuster      Wrench

                                  →

1 

2 

3 

4 

5 

6 

7

Position

Spring Action

Stronger

The standard setting position for an average-build rider of 75 kg

 (

165lb

) 

with no passenger and no

 accessories is No.3.

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