CFMoto ATV CF500-5C/CF625-C 4x4. Service Manual - part 7

Axle boots

Check the protective boot for hole or tears.
If

 

there is any damage,have your dealer replace it.

Check the spark plug
Removal

1.

Remove the panel.

2.

Remove the spark plug cap.

3.

Remove spark plug with wrench in the tool kit 

as per instruction.

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MAINTENANCE AND LUBRICATION

Inspection

Spark plug is an important engine part

，

and is easy to inspect.

The condition of spark plug can indicate the engine condition. 
For a normal ATV,The ideal color on the white white insulator
around the center electrode is medium-to-light brown color.
Do not attempt to diagnose the problem by yourself, but have
your dealer inspect it.Periodically remove and inspect the spark
plug

, 

because the heat and deposit will cause the spark plug

damage and erode corrosion slowly.If there is excessive 
electrode erosion or too much carbon and other deposits,
replace specific spark plug.

NOTE

：

Spark plug specification

：

DPR

7

EA

-9（

NGK

）

Installation

1.

Measure the celectrode gap with thickness gauge.

Adjust the gap as per specification if necessary.

NOTE

：

Spark plug gap

：0.8-0.9

mm

2.

Inspect deposit,corrosion, or carbon on porcelain head of spark plug 

electrode and center part.Replace the spark plug if there is excessive deposit.
Clean the carbon and deposit with spark plug clean agent or brush.

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MAINTENANCE AND LUBRICATION

Installation

3.

Install the spark plug and tighten it as per stipulated torque.

NOTE

：

Spark

 

plug torque

：17.5

N

.

m

。

If you have no torque wrench when you install the spark plug, 1/4 to 1/2 turn more after 
tightening the spark plug by hand will be appropriate.Tighten the spark plug to stipulated
torque as soon as possible.

4.

Install spark plug cap.

5.

Installthe panel.

Cleaning Air filter element

NOTE

：

There  is  a check  soft  hose in  air  filter  box.If  there  is  dust  or  water in  the  sofr 

hose, clean the sofe hose, and air filter as well as air filter box.

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MAINTENANCE AND LUBRICATION

Cleaning Air filter element 

1.

Remove the seat;

2.

Open the bracket and remove air filter box cover;

3.

Remove air filter;

4.

Disassemble air filter from bracket;

5.

CLean the air filter quitely with solvent;

6.

Squeeze

 

the excessive solventout out of the air filter, 

and then dry it.

CAUTION

：

Do not damage the air filter when squeezing the solvent;

7.

Check the air filter and replace it if damaged;

8.

Apply special oil or other good quality foam air filter

oil on the air filter.

I

f there is not such foam oil, use 

engine oil.

NOTE

：

The

 

air filter element can be wet, but do not drip 

water on it.

9.

Pull the air filter element out from the bracket;

10.

Install the air filter element;

11.

install air filter box cover and make sure the soft hose connected.

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Cleaning air filter element

12.

Install the seat;

NOTE：  

Clean the air filter element every 20-50 hours;More frequent cleaning and lubrication

should be done when operating the vehicle in dust area.After each use, inspect the intake hole
on the air filter box cover for obstruction.Inspect the sealing between air filter rubber 
connector and air hose joint of the carburetor

;

Tighten all fitting securely to avoid 

unfiltered air entering the engine.

CAUTION

Do not operate the engine when removing the air filter. That would allow the unfiltered air
enter the engine, and to fasten the tear or damage.In addition, operating the engine without air
filter device will affect the carburetor jetting performance, and possible engine overheating.
Cleaning spark arrester
Mak

e

 

sure the exhaust pipe and muffler are cool when cleaning the spark arrester.

。

1.

Remove the bolts;

2.

Pull out the pipe from muffler;

3.

Tap the exhause pipe quietly, and remove all carbon deposit from spark arrester in the pipe.

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MAINTENANCE AND LUBRICATION

Cleaning spark arrester

4.

Insert the exhaust pipe into the muffler aligning the bolt hole;

5.

Install and tighten the bolts.

Cool down the muffler when cleaning the spark arrester.

；

Not allowed to operate immediately shut the engine.

V

-

belt cooling duct inspect soft hose

If there is deposit or water inside, remove the soft hose 
and clean it.

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MAINTENANCE AND LUBRICATION

V-belt case drain bolt

When riding the vehicle in water, which reaches
height of V-belt case, remove the bolt to 
drain the water from V-belt cae.

NOTE

：

If draining water from V-belt after 

removing the drain bot,

h

ave you dealer check 

the ATV

，

because water may affect other engine 

parts.

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MAINTENANCE AND LUBRICATION

102

-

-

Adjusting throttle lever

1.

Loosend half nut;

2.

Turn the adjusting nut to keep 3-5mm throttle lever free play.

3.

Tighten haf nut.

MAINTENANCE AND LUBRICATION

Inspecting from brake caliper

Check the brake disc for damage and wear.

If thickness of brake disc is less than 3.0mm, have your dealer replace the whole 
brake pads.

NOTE

：

Need  to  remove the  wheels to  check the  brake  pads.

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MAINTENANCE AND LUBRICATION

Checking rear disc

Check the brake disc for damage and wear.

If the brake disc thickness is less than 6.5mm,
have your dealer replace the brake pads.

Check the brake fluid level
Insufficient brake fluid may allow the air enter 
the braking system.and cause the brake in disorder

；

Before riding, check the brake fluid level 
above the Lower Limit mark,and add brake fluid 
if necessary.Front master cylinder resorvior 
is located on the right side of handlebar

；

Rear 

master cylinder fluid resorvior is located near the
rear brake pedal.

Front

Rear

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MAINTENANCE AND LUBRICATION

Checking brake fluid level

Observe these precautions:

1.

When checking brake fluid level,turn the grip to make sure top level of master 

cylinder resorvior.

2.

Only use appointed good quality brake fluid, otherwise, rubber seals will be deteriorated,

causing leakage and poor brake performance.

NOTE

：

Recommended brake fluid

：

D

OT

3

 

o

r 

DOT

4。

3.

Refill with same type brake fluid till full. Mixed brake fluid may cause hramful chemical

reaction and lead to poor brake performance.

4.

Be careful not to allow water entering master cylinder reservoir, when refilling brake

fluid; water will significantly lower the boiling point of the fluid.

5.

Brake fluid may deteriorate painted surfaces or plastic parts.Always clean up spilled 

fluid immediately.

6.

Have your dealer check the reason why the brake fluid level goes down.

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MAINTENANCE AND LUBRICATION

Process to Replace Brake Fluid

Replacement shall be done only by trained service 

m

an;

Dealers need to replace Brake Fluid when making Maintenance 

,

or when parts are damaged, or

 when Break Fuid leaks  

●

Replace Oil Seal once every two years.

●

Replace Braking Hose once every four years.

●

Free play at end of Braking Lever

shall be zero mm;otherwise please ask your dealer
to check the Braking System. 

Make Sure after Maintenance that

Braking successfully with enough clearance.

●

No obstacle when braking.

●

No air remains in braking system.

Replacement of brake components requires professional knowledge.
These procedures should be performed by your dealer.
If adjustment is necessary, please make sure follow procedure as below

:

●

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MAINTENANCE AND LUBRICATION

Adjustment of Rear Brake Lever and Footpedal 
Adjustment of Rear Brake Lever Clearance

Rear Brake 

L

ever clearance    is 

0.5-2

mm

1.

Unscrew Locking Screw

①。

2.

Turn Bolt 2

 

to increase clearance;

  

Turn Bolt 2 with

direction 

3.

Tighten Screw

①。

Please send to dealer if adjustment cannot be done.

NOTE

：

When adjust clearance,make sure

●

Make sure the brakes operate smoothly

●

Braking Footpedal does not move

Procedure to adjust height of Rear Braking Footpedal:
Note:Adjust Rear Braking Kit before check Rear Brake Gasket

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MAINTENANCE AND LUBRICATION

Rear Brake Pedal Adjustment

Top of Rear Brake Pedal shall be 72mm higher from
the end;otherwise please ask your dealer to adjust. 

After servicing,make sure that

●

Make sure the brakes operate smoothly and that 

  the free play is correct.

●

Make sure the brakes do not drag.

All air must be bled from the brake system.
Replacement of brake components requires professional 
knowledge. These procedures should be performed
by your dealer.

The  rear  brake  light  switch,  which  is  activated 

 by  the  brake pedal  and  brake  levers,  is  properly  

adjusted  when  the  brake light comes on just before

 braking takes effect. If necessary, adjust the brake light switch as follows.

T

  

h

  

e

 

  

rear

  

brake

  

light

  

switch

,

which

  

is

  

activated

 

by

 

 

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MAINTENANCE AND LUBRICATION

Rear Brake Pedal Height Adjustment

Turn adjustment nt while pushing rear brake light switch

；

Brake light is on in advance while 

turning with direction

①   

Brake light on is delayed while turning with direction 

②

Inspection and lubrication of wiring and cables.

I

t  is  necessary  to  inspect  oftenly  the  wirings  and cables;replace  if  there  is

any damage.Lubricate the moving point of cables;
If cables are not moving well,contact your dealer
for replacement.

NOTE

：

Recommended lubricante: oil 

SAE

10

W

-30

Lubricate Upper&Lower Shaft Joint of Rear
Steering Knuckle with a Spray Gun

NOTE

：

Recommended Lubricante --Lithium base grease 

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MAINTENANCE AND LUBRICATION

Wheel Removal

1. Loosen the wheel nuts.
2. Elevate the ATV and place a suitable stand under the frame.
3. Remove the nuts from the wheel.
4. Remove the wheel.

Wheel Installation
1. Install the wheel and the nuts.

Tapered nuts are used for both the front and rear

wheels. Install the nut with its tapered side towards the wheel.

The arrow      mark  on the tire must point toward the rotating direction of the wheel.

NOTE

：●

      ●

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