Page 1
Mortch International Ltd
B08 SERIES
User’s Manual
Page 2
Preface
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http://www.mortch.com
Thank you very much for purchasing our scooters. And welcome to join the driver’s line of MORTCH motorcycle.
h its extraordinary advantages of excellent quality, smart appearance and shape of legerity, our product will surely
Wit
bring the utmost pleasure and convenience to your life.
This manual gives you information about the general structure, function, operation and maintenance methods of B08
SERIES. In order to enable your beloved motorcycle to render a best performance and a longer life, please read this
manual carefully, pay particular attention to the running-in part in it and follow all the operating instruction. It is of great
importance to make your riding safer and more comfortable. Experienced staffs in our sale agency and the maintenance
shop will also offer excellent service for you.
● Please take an initial examination of your motorcycle after the first 300km running in our designated maintenance
shop, and take regular examination in every 1000km thereafter.
● All the direction, illustration and specification included in this manual are based on the latest product information.
Please be noted that they may be different from the actual status of the motorcycle if there is new revision on its
specification, and no further advice will be given.
● This motorcycle was designed and manufactured which complied with e-mark, the safety standard of Europe Union.
The maximum speed is 45 km/h. Please do NOT change any parts without professional advice and use non-original
parts in case of avoiding danger to driver and the broken of traffic laws.
Page 3
CONTENTS
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dance …………………………………………………………………………………………… 1
Gui
Position of parts …………………………………………………………………………………… 3
Controlling parts ……………………………………………………………………………………… 4
Fuel tank …………………………………………………………………………………………… 6
Fuel and engine oil …………………………………………………………………………………… 6
Starting pedal ………………………………………………………………………………………… 6
Pre-riding inspection ………………………………………………………………………………… 7
Engine starting ……………………………………………………………………………………… 8
Running-in …………………………………………………………………………………………… 9
Regular maintenance ………………………………………………………………………………… 10
Tools ………………………………………………………………………………………………… 16
Technical Parameters ………………………………………………………………………………… 17
Electrical Circuit Chart ………………………………………………………………………………… 19
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□□□□Guidance
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Please keep safety in your mind and observe the regulations of transportation while enjoying your riding. Pay attention to
th
e following rules:
1. Pre-riding inspection
Please read the details in the relevant chapter for your safety.
2. Helmet
Do remember to wear helmet while riding.
3. Being familiar with motorcycle operation
It is of great importance to ensure your safety getting familiar
with motorcycle operation.
4. Speed limitation
Drive at proper speed in accordance with the road condition,
the weather and your driving skill.
1
WARNING
It is dangerous to drive on the wet road.
Do not make an abrupt turning while
accelerating and keep proper distance
from other vehicles.
Page 5
5. Positions of the numbers
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The frame number and the engine number are for the purpose of
registering the motorcycle. When your motorcycle needs
inspection, repair or other special service, the number will enable
you to get good service from our sale agency. Please note down
your number here:
frame number
□□□□ The frame number:
□□□□ The engine number:
2
engine number
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□□□□ Position of parts
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1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 20 21 22 24
23
B
A
O
T
I
A
N
1. brake disc 2. front shock absorber 3. side reflector 4. head light
5. disk brake assy. 6. rear-view mirrors 7. front turning light 8. helmet hook
9. side stand 10. main stand 11. starting pedal 12. rear shock absorber
13. rear carrier 14. rear turning light 15. air cleaner 16. drum brake assy.
17. rear reflector 18. rear brake lever 19. left switches assy. 20. meters
21. right switches assy. 22. front brake lever 23. taillight 24. muffler
3
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□ Controlling parts
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1. Rear brake lever
Ho
ld it tightly and the rear brake works.
C. Switch for high/low beam lights
3. Meters and indicating lights
2. S
witches on the left
A. Horn button
Turning signal switch
B.
C
B
A
A. Indicates the speed in km/h and Mph
B.
Indicates total distance the motorcycle has run
C. Left turning light indicator
D. High beam indicator
E. Right turning light indicator
F. Fuel gauge
Left turning light
Right turning light
A B C D E F
4
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4. Front brake lever
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When the ignition switch is at ON position, hold the
Hold it tightly and the front brake works.
brake and press the electric starting button and then the
engine starts.
6. Ignition switch
5. Switches on the right
A. Head light switch
B. Electric starting button
A
B
ON: Engine can be started and all the lights can be
op
erated. The key cannot be taken out.
OFF: The whole circuit is cut. Engine and lights cannot
be operated and the key can be taken out.
LOCK: Turn the steering handlebar fully to the left, press
the key and turn it to the position lock. Then the
key can be taken out.
H
S
U
---ON
---OFF
P
---LOCK
5
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□□□□Fuel tank
◆
Turn off
the engine when refilling the tank.
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sage of the fuel tank lock:
U
□□□□Fuel and engine oil
A. Gasoline
1.
Turn the little cap on the fuel cap clockwise. Inser
the key and turn the key clockwise and take out the
fuel cap.
2. Align the lock tongue on fuel cap with the notch on
fuel tank, press the fuel cap and lock it.
lock tongue
t
Hig
Any
90# or higher quality lead-free gasoline is preferred.
B. Engine oil
SAE15w/40 SF
h quality fuel is essential to the engine.
sand in the fuel is absolutely prohibited.
notch
open
□□□□Starting pedal
Starting pedal is for kicking start of the engine.
Warning
◆Turn off the cap slowly.
◆Don’t overfill the gasoline over the designated scale.
◆Do not add anything into the gasoline.
starting pedal
20w/40-20w/50
15w/40-15w/50
10w/30
10w/40
-10
0
10
T
20
40
60
20
30
80
100
40
C °
° F
6
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□□□□Pre-riding inspection
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ase check the following parts before you drive.
Ple
No. Items Inspection content
1 Steering handlebar 1.Flexibility 2.No gap or loosing appearance
2 Brake system
3 Tires 1.Proper pressure 2.No crack or cutting
4 Fuel Sufficient fuel
5 Engine oil Sufficient engine oil
6 Lights Workable
7 Horn Workable
8 Gear oil With normal stock
9 Throttle 1. Proper gap 2.Flexible function 3.Proper control lever returning
10 All the bolts and nuts No loosing appearance.
1.Travel of the front brake and the rear brake 2.No break on the cable
3.Flexible function
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□□□□Engine starting
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1. Please check the volume of engine oil and ga
before starting. The main stand and the side stand
should be taken back while starting the engine.
2. Turn the ignition switch to the “ON” position.
soline
Engine Starting
3.
Gri
p the brake lever and press the starting button and
hen the engine will be started.
t
grip the rear brake lever
H
S
U
P
"ON" position
Warning
◆ Grip the rear brake lever in case that the
motorcycle rushes forwards abruptly.
electric starting button
8
Page 12
5 seconds is the maximum limit for each
startin
g
After the engine started, the
starting
pedal
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◆
Warning
Warning
◆
and10 seconds is the minimum interval.
◆ Stop pressing the starting button immediately
after the engine starts.
◆ Do not press the starting button while the engine
◆ When using electric starting, please press the
is running, or the start motor will be damaged.
rear brake lever in advance to get through the
circuit and start the motor.
should be taken back to its original position.
Otherwise, it will affect the driver’s safety.
◆ Please don’t start the engine in unventilated
places, because the wasted gas with CO is
harmful to human being.
□□□□Running in
◆ When using electric starting, don’t operate the
starting motor continually, or it may cause
damage to the starting motor and the battery.
To keep your motorcycle running in a good condition,
ple
ase follow the below rules during the running-in
◆ Warm up the engine after cold starting (about 3
minutes).
period.
4. K
ick Starting
Grip the brake lever, tread the starting pedal
Distance (km) Speed limitation (km/h)
0-300 25
300-1000 35
heavily and then the engine will be started.
9
1000----- ≤45
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□R
Interval
Km 300
1000
3000
6000
12000
Month
1 3 6 12
Battery
Engine oil strainer
Gasoline strainer
Carburetor
Air cleaner
core
Spark plug
F
uel throttle
Drive belt
Engine oil
Brake
system
Front fork and steering
stem bearing
S
uspension
Tires
Fastening nuts and bolts
Gear oil
Rear brake cam
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□
□
□
egular maintenance
Item
New motor
I I I I I
C C
R
I I I C
Clean it every 2000km and replace it when necessary
Clean it every 3000km and replace when necessary
A A A A
I I
R R Replace every 3000km
I I I I I
I I I I
I I I I
I I I I I
I F F F
R Replace every 5000km / 5Month
NOTE: I=Inspect and clean、adjust、replace or lubricate when necessary, C=Clean, R=Replace, F=Fastened
Service more frequently when riding in dusty conditions.
10
C
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1. Battery
Warning
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12V/5.7Ah battery
① When the voltage is less than 11.5V, please use
kick starting in stead of electric starting.
② Put the ignition switch on OFF position before
battery replacement.
◆ It has been fully adjusted to the highest
position when manufactured.
③ Electrode identification: “+”— red line, “-”—green line.
④ Change a new battery every 4 years.
3. Air cleaner
Carburetor and idling speed adjustment
2.
① Keep the engine warmed up for 2-3 minutes.
② Adjust the idling speed screw to set the engine at
speed of 1900 ± 100 rpm. The idling speed
adjusting screw is following:
idling speed adjusting screw
A: Remove 6 tightening screws of air cleaner cover.
Remove air cleaner cover.
B: Take out the sponge core.
CLEANING:
① Po
ur the non-inflammable detergent into a basin
and immerse the sponge core into the detergent.
screw
1 2 3 4
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Page 15
② Press the core to squeeze the detergent out of it by
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5. Fuel
palms. Never twist it in case that it is broken.
③ Immerse the core into engine oil.
④ Squeeze the excessive oil out but keep it lightly oil
immersed.
If it has been damaged, please replace a new one.
NOTE: Do not clean it with any oil or water.
4. Spark plug
◆Clean the carbon deposit on the spark plug with a
pie
ce of hard wire or steel needle.
◆Adjust the gap to 0.6-0.7mm with a thickness gauge.
◆Use A7RC when replacement is needed.
ill the recommended 90# or higher quality
Ref
lead
-free gasoline when the indicating needle in the
fuel gauge points to the red area.
NOTE: Lead-free gasoline will extend the life of spark
plug and catalytic converter.
6. Engine oil
Replace the engine oil under the condition of the
engine is warm.
12
oil plug for
displacement
oil dipstick
oil dipstick
upper limit
lower limit
Page 16
① Remove the oil dipstick.
Warning
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②The
rear brake (drum brake)
② Remove the oil plug for displacement to drain the
used oil.
③ Reinstall the oil plug for displacement, paying
attention to be tightened .
④ Refill 0.8 L recommended fresh engine oil.
⑤ Fas
7. Brake system
Normal free travel of the brake lever is about 10-20mm.
ten all the nuts and screws.
① The front brake (disk brake)
a
Turn the adjusting nut to get a proper travel.
adjusting nut
◆ FREE TRAVEL means the distance between
the positions from free status to the
beginning performance of the brake.
a
a=10~20mm
13
a=10~20mm
◆ Pay attention to the sensitivity of the brake.
Page 17
☆ Disk brake
Warning
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◆Brake oil level
◆Gri
ind
please ask the appointed maintainer to change the brake
blocks.
p the brake lever and check the wear and tear
icator. If the indicator nearly touched the brake disc,
③
① It has been filled with the special brake oil before the
mot
orcycle leaves the factory. User should fill or replace
the qualified brake oil (such as No.DOT3 or DOT4 brake
oil) from the appointed maintenance station. Never
replace or mix other oil, otherwise it would damage the
brake system.
②If the brake oil is insufficient, it might be possible for
①
the air to come into the brake system and result in the
failure of the system.
①wear and tear indicator ②br
ake disc ③brake blocks
◆Check the following items of brake system before
driving the motorcycle:
① Check if there is any leakage.
② Check if there is any leakage or crack on the oil
◆ Brake oil is corrosive material. It would damage
and corrupt the painting of the part. It should be
pressed hose.
③ The
④ Abrasion of the brake blocks.
14
brake lever should be kept with a certain free
distance of 10～20mm and kept a certain re-grip
power.
cleanout if the oil splash on the part.
◆ If the oil sprayed on the skin or eyes, it should
be cleaning quickly with a lot of water.
Page 18
8. Tires
The standard tire is
120/70
-
12 56J
for
front
Warning
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Insufficient tire pressure hastens wear of them and
affe
cts the riding stability. Please check the tire pressure
and tread depth when applying regular maintenance.
①Tire pressure: front 250 KPa, rear 250 KPa.
9. Starting motor
eck the fastening bolts and the carbon brush, and
Ch
repl
ace them if necessary.
②Tread depth: It is suggested to replace a new tire
when the tread depth is less than l mm.
10. Fu
Fuse is linked with the outer line of the battery. When a
se
1mm
light or circuit fails suddenly, please check the fuse first.
◆
and 130/70-12 58J for rear tires. Another
type of tire may cause trouble.
◆ Tire inflation pressures and the general tire
condition are extremely important to the proper performance and safety of the vehicle.
◆ The fuse can not be replaced by any iron
or aluminum wire.
11. Gear oil
Please use the recommended gear oil: SAE85W/90
Replacing capacity: 100ml
Total capacity: 110ml
Warning
15
Page 19
How to change gear oil
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□□□□Tools
Stand up the main stand.
Take off the oil plug for refill.
Take off the oil plug for draining, let off all the dirty
full set of tools is offered for your daily use.
A
gear oil.
Tighten the oil plug for draining.
Refill fresh gear oil and tighten the oil plug for refill.
the plug for draining
the plug for refill
After refilling, please make sure you have locked the oil
plugs and bolts.
16
Page 20
□□□□Technical Parameters
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tems Spe
I
cifications
Length
Size
Weight
Capacity
Circuit system
Width
Height
Wheel base
Unloaded weight
Mass weight
Max. Speed
Slope
Spark plug
Battery
Fuse
Headlight
Front turning lights
Rear turning lights
Brake light
1850mm
6
1150mm
1300mm
88kg±3kg
242kg
45km/h
≥6°
A7RC
1
10A
12V 35/35W
12V 10W
12V 10W
12V 21/5W
80mm
2V/
5.7AH
Volume of the fuel tank
Volume of the engine oil tank
17
Position lights
12V 5W
4L±0.5L
1L
Page 21
Items Specifications
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Engine
Model
Type
Cylinder
Bore and stroke
Cylinder volume
Compression ratio
Max. Power
139QMA
4 stroke
1
39mm×41.4 mm
49cm
10.5±0.3:1
2.61 kW/8000r/min
Max. Torque
Carburetor
Air cleaner
Ignition type
Starting mode
Cooling mode
Lubrication
Brake system Front: disk brake Rear: drum brake
3.56N·m/5500r/min
PZ18J
Sponge core
CDI
Electric/kicking start
Forced air-cooled
Pressure spray
3
Suspension
18
Front shock absorber
Rear shock absorber
Tires 120/70-12 56J for front tire
Variable-pitch spring & hydraulic damping
shock absorber
Variable-pitch spring & hydraulic damping
shock absorber
130/70-12 58J for rear tire
Page 22
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