KAVIR S4 150 User manual

KAVIR S4 150
OWNER MANUAL
KAVIR YEKTAZ CYCLET CO.

1
USER’S MANUAL Instructions to Users
Precautions
Please read this User’s Manual carefully before operating this
product!
Warning
* Please observe traffic laws and regulations carefully and drive safely.
* Make sure not to lend this motorcycle to be driven by a person not holding a driver’s license.
* Make sure not to hang anything on the direction handgrip, otherwise the driving safety may be affected.
* Please wear your protective articles such as helmet, dust goggles, gloves for the sake of your safety.
* Make sure not to use this model to participate in any kind of competition. Otherwise, any mechanical breakdown, injury or death arising wherefrom
shall be on your own account.
* The temperature of exhaust silencer is high when the motorcycle is running. Drivers shall be careful not to touch it to burn them.
* Don’t wear loose clothes or slippers when driving it. Otherwise, it may hook the control grip and accessories, and thus cause potential safety
hazards.
Caution
* After opening the packaging box, please check the accessories and various documents delivered with the motorcycle according to the packing
list.
* The motorcycle accommodates two persons, and the maximum payload is 150kg. The moped accommodates 1 person, and the maximum
payload is 75kg.
* It is not allowed to modify any part of the motorcycle. Otherwise, the reliability, stability and comfortableness of the motorcycle may be affected.
* Only the fuel with a grade specified on the fuel tank or above can be used. Otherwise, the dynamic performance, economy, and safety of the
motorcycle may be damaged, and the service life of the motorcycle will be shortened. If any mechanical breakdown occurs due to this, you shall be
solely responsible for it.
Suggestion
* This Manual is a necessity for the use of the motorcycle. If the motorcycle is transferred to any other person, this Manual should be transferred
together with the motorcycle.
* When it is necessary to adjust the air valve clearance of the motorcycle, please do it in a professional motorcycle maintenance shop or in a
designated after-sales service center.

2
Instructions to Users USER’S MANUAL
Motorcycle Vehicle Identification Number (VIN) and Engine Number
Motorcycle Vehicle Identification Number (VIN) , Engine Number and Quality Certificate, used for obtaining
the motorcycle driving license and motorcycle registry
Please fill in appropriate numbers for future reference:
Please fill in appropriate numbers for future reference:
Motorcycle VIN:
Engine Number:
① The motorcycle Vehicle Identification Number
(VIN) is printed on the vertical tube of the frame.
②The product nameplate is riveted on
the right lower part of the frame.
③The Engine Number is printed on the
left lower part of the crankcase.

3
USER’S MANUAL Instructions to Users
Brief Introduction to the Whole Motorcycle
①. Rearview mirror
②. Left handgrip
③. Left combination switch
④. Instrument combination
⑤. Ignition lock switch
⑥. Right combination switch
⑦. Accelerator handgrip

4
Instructions to Users USER’S MANUAL
Technical Specifications and Performance Parameters
Item Specification
Displacement 50cc 125cc
Overall dimensions(L*W*H) 1825m×680mm×1145mm 1825mm×680mm×1145mm
Wheelbase 1280mm 1300mm
Minimum ground clearance 115mm 130mm
Complete vehicle shipping mass 92kg 105kg
Maximum payload 75kg 150kg
Engine model 159QMA 152QMI
Engine form Single-cylinder, four-stroke, air-cooled
Engine
Bore×Stoke 39mm×41mm 52.4mm×57.8mm
Working volume of cylinder 49.6mL 124.6mL
Compression ratio 10.2:1 9.0:1
Model of carburetter PD18J PD24J
Air filter Sponge filter element
Method of lubrication Force-feed and splash
Startup way Foot-stepped /electric start-up
Maximum power/corresponding speed 2.10kW/7500r/min 5.5kW/7000r/min
Maximum torque/corresponding speed 2.80N.m/7000r/min 8.0N.m/6000r/min
Minimum idling stabilized speed (1500±100)r/min (1600±100)r/min
Economic fuel consumption 2.0L/100km 2.8L/100km
Travelling
system
Model of shock absorber Hydraulic spring combined type
Drive mode Belt drive
Specification/air pressure of tire Front wheel 120/70-12 175kpa Rear wheel 120/70-12 225kpa

5
USER’S MANUAL Instructions to Users
Technical Specifications and Performance Parameters
Item Specification
Displacement 50cc 125cc
Drive system
Clutch type Dry-type automatic centrifugal
Transmission type Automatic
Front wheel type Aluminum alloy wheel
Continuous transmission ratio 1.5-0.6 2.66 0.866
Fixed transmission ratio 13.33 8.615
Braking
system
Front brake Disc brake
Rear brake Disc brake
Electric
system
Ignition way CDI
Model of spark plug CR7HSA
Spark plug gap 0.6mm~0.7mm
Specification of accumulator cell 12V9Ah
Fuse 15A
Head Light 12V 35W/35W
Tail light/Braking light 12V 5W/21W
Turning signal light 12V10W×4
Turn signal indication lamp 12V1.7W×2
Instrument light 12V1.7W×2
Front Position Lamp 12V5W
Fuel & oil Fuel tank 5.5L
Engine oil 800mL

6
Instructions to Users USER’S MANUAL
Instrument combination
① Left turning indicator lamp:
When the turning indicator lamp “ ” flashes, it indicates that “Turning signal
light” is open.
② Tachometer pointer:
It indicates the current engine speed of the motorcycle.
③ High beam indicator lamp:
When the high beam indicator lamp “ ” is on, it indicates that the “High
beam lamp” is on.
④ Speedometer:
It indicates the current driving speed of the motorcycle.
⑤ Odometer:
It records the accumulative travel miles of the motorcycle.
⑥ Fuel gauge:
It indicates how much fuel is left in the fuel tank of the motorcycle.
⑦ Right turning indicator lamp:
When the right turning indicator lamp“ ” flashes, it indicates that the “Right
turning signal light” is on.
⑧ Battery Meter:
It indicates the remaining capacity of the accumulator cell of the motorcycle.
⑨ Power-on indicator lamp

7
USER’S MANUAL Instructions to Users
Left combination switch
① High beam lamp switch:
When the motorcycle needs to use the “High beam lamp”, turn the lighting
switch to the status “ ”.
② low beam lamp switch:
When the motorcycle needs to use the “Low beam lamp”, turn the lighting
switch to the position “ ”.
③ Horn button:
When the motorcycle needs to horn, press the button “ ”.
④ Turning signal light switch:
When the motorcycle needs to change its travelling direction, switch to “ ” or
“” to turn left r right. When the motorcycle needs to stop turning, simply switch
the turning button to the middle.

8
Instructions to Users USER’S MANUAL
Right combination switch
① Head Light switch:
Turn the “Head Light switch” to the position “ ”, the high beam and low
beam of the head light is open.
② Electric start button:
When the motorcycle needs electric start, press the button “ ”.
③ Position lamp switch:
Turn the “Head Light switch” to the position“ ”, the position lamp of
instruments, head light and tail light are open.
④ Main switch of lighting lamps:
Turn the “Head Light switch” to the position “”; the lighting system of the
motorcycle is closed.
⑤ Accelerator handgrip:
It is mainly use to control the fuel flow rate of the carburetor.
Engine is on“ ”
Engine is off“ ”

9
USER’S MANUAL Instructions to Users
Ignition lock switch
Caution
* When the motorcycle is parked, please turn the Ignition lock switch to “ ” to lock the direction lock, so as to prevent the motorcycle from being
stolen.
①Ignition lock On:
Turn the ignition lock key to the position“”to
switch on the electrical system of the
motorcycle. Don’t remove the motorcycle
key.
②Ignition Lock Off：
Turn the ignition lock key to the position “” to
switch off the electrical system of the motorcycle. The
motorcycle key can be removed.
③Direction lock:
Turn the steering gear left to the flameout position.
Turn the ignition lock key to the position “”to
lock the direction lock. Remove the ignition lock
key.

10
Instructions to Users USER’S MANUAL
Warning
* Don’t fill fuel to be above the neck of the fuel tank.
* Gasoline is flammable. The motorcycle should flame out before opening the fuel tank cover. Fuel should be filled in a ventilated place.
* Fuel should be filtered in filling fuel. In filling fuel, smoking should be strictly forbidden and it should not be close to any open fire.
Caution
* Only Grade 90 or above fuel should be used.
Fuel tank negative pressure switch: it is opened mainly relying on the
negative pressure produced by the operation of the engine, so as to
make fuel enter the carburetor.
Fuel filter: fuel must be filtered through a fuel filter, to ensure that it is
clean.

11
USER’S MANUAL Instructions to Users
Maneuvering positions
This model adopts a dry-type automatic centrifugal clutch, namely automatic clutch, stepless speed change plus constant mesh. If any slip or
incomplete separation occurs to the stepless speed change of the automatic clutch, please repair it in a designated after-sales service center or in
a professional maintenance station.
Front braking handgrip: controls the running speed of the front
wheel of the motorc
y
cle. Rear braking handgrip: controls the running speed of the rear
wheel of the motorc
y
cle.
Automatic clutch: automatically controls the
separating/meshing of the clutch based on the running speed o
f
the motorcycle.
Starting arm: used for foot-stepped startup of
the motorcycle

12
Instructions to Users USER’S MANUAL
Environmental protection device
Emission Standards of Motorcycles (Stage III , under the running
mode)
Unit:g/km
Emitted pollutants Two-wheel motorcycle
CO 2.0
HC 0.8
NOx 0.15
Emission Standards of Mopeds (Stage III , under the running mode)
Unit:g/km
Emitted pollutants Two-wheel moped
CO 1.0
HC + NOx 1.2
Limits of exhaust pollutants of motorcycle/mopeds under idle
conditions
In case of idle type approval test, the volume concentration of emitted CO is
≤3.8%; and the volume concentration of emitted HC is ≤800×10-6;
In case of Production consistency check test, the volume concentration of
emitted CO is ≤4.0%; and the volume concentration of emitted HC is
≤1000×10-6.
The environmental protection device is mainly a two-in-one air
compensating valve (air pump) combining a one-way leaf valve and a
secondary air control valve. Fresh air enters the exhaust passage of the
engine under the action of the air pump to perform second burning for
unburned gas discharged from the engine. By making use of the
principle of negative pressure pulsation, the air pump controls the
amount of air needed to enter into the exhaust port through the
one-way leaf valve and the secondary air control valve. This device
reduces the emission pollution of the motorcycle, and ensures that the
tail gas of the motorcycle can meet the requirements of National Stage
III emission standard.
Intake plastic pipe
Exhaust
passage
of engine
Negative
pressure pipe
Intake
p
i
p
e Air pump
Filter components of
air pump

13
USER’S MANUAL Instructions to Users
Motorcycle Load
The required load of the motorcycle must be strictly observed.
Otherwise, the safety and stability of the motorcycle may be affected.
* Articles in the rear storage box must be securely fixed.
* It is strictly forbidden to hang anything on the steering gear.
* The load of the rear carrier must not exceed 5kg.
* The maximum payload of motorcycles is 150kg, and the maximum
payload of mopeds is 75kg.
Tools delivered together with the motorcycle
Common service and maintenance tools are delivered together with the
Motorcycle.
The load of the rear storage box should
not exceed 5kg.
Tools delivered together with the motorcycle can be
accessible simply by opening the seat cushion storage box.
13×15 Double-ended
spanner Spark plug socket Double-ended screw
Double-ended screw driver
holder
8×10 Double-ended
spanner

14
Operating Instructions USER’S MANUAL
Check before and after running
In order to ensure good working performance of the motorcycle, please
conduct service and maintenance mainly by checking, adjusting and
cleaning the Motorcycle before, during and after the running of the
motorcycle.
1. After cleaning the Motorcycle, start the engine and make it run at idle
for several minutes.
2. Check whether there is any fuel/oil/gas leakage.
3. Check whether there is any loose connection.
Different levels of maintenance and service will be taken for different
odometer readings and performance conditions of the motorcycle:
Level 1 Service and Maintenance: Odometer reading 1000km~2000km,
the service and maintenance is dominated by lubricating and fastening.
Level 2 Service and Maintenance: Odometer reading 3000km~6000km,
the service and maintenance is dominated by checking and adjusting.
Level 3 Service and Maintenance: Odometer reading 6000km~10000km,
the service and maintenance is dominated by disassembling,
disassembly inspection and removing hidden hazards.
Before running the motorcycle, please follow the following steps to check
it, so as to ensure good performance of the motorcycle and your driving
safety.
Start the
ignition lock
switch to check
whether each
indicator lamp
of instrument
works properly
Observe the
fuel gauge to
see whether
the remaining
fuel is enou
g
h.

15
USER’S MANUAL Operating Instructions
Open the fuel tank cover, and add fuel according to the
actua
l
t
r
ave
l mil
es.
Check the flexibility and stability of the
stee
rin
g
gear
.
Level the motorcycle and check the oil gauge to see whether
the oil level is between the upper and lower markings.
Check whether the acceleration handgrip turns flexibility. If
not, it is necessary to clean the accelerator or change the
steel cable.

16
USER’S MANUAL
Check whether the clutch separates or meshes
properly.
Check the air pressure of the front tire and the wear
of the tire casing.
Check whether the connection of the
accumulator cell is loose.
Check the air pressure of the rear tire and the wear
of
the
tire
casing

17
USER’S MANUAL
Check whether the free travel of the front braking handgrip meets
the standard 10mm-20mm.
Check whether the head light, turning lights and
indictor lamps work properly.
Check whether the free travel of the rear braking handgrip meets the
standard 10mm-20mm.
Check whether the tail light and braking
lights work properly.

18
Operating Instructions USER’S MANUAL
Operation of foot-stepped startup
The foot-stepped startup of the motorcycle is done in the following steps:
Start the ignition lock to check whether indicator lamps of
instruments of the
motorcycle
work properly.
Step down the starting arm to its limit, and then reset the starting
arm in time. The starting arm must be reset in time after the
startup of the motorcycle.
Hold the front braking handgrip to prevent
the slipping of the motorcycle.
Turn the acceleration handgrip slightly with your right hand
to add an appropriate amount of fuel to start up the
motorcycle. The motorcycle can be run only after it is
p
re-heated.