Yadea M6L User manual

M6L ELECTRIC MOTORCYCLE
SERVICE MENU
EM244
General
Information
Motor
Frame &
Chassis
Electrical
System
PREMIUM E-MOBILITY�

Table of contents
1
Safety precautions 1
Repair and maintenance information 1
For the safety of the owner 1
For your safety 1
Using this vehicle 1
Important safety considerations 1
Manual introduction 2
Symbol 2
Vehicle information 3
Specifications 4
Specifications 4
Torque value 5
Electrical component parameters 5
Main performance index 5
Others 5
Drawing and wiring diagram 6
8
Maintenance cycle sheet
9
Installation and disassembly 9
Fault diagnosis and on - board maintenance 10
Service tools 10
11
Body parts 11
12
12
13
14
15
15
16
16
17
18
18
19
20
Front fender
Front cover
Front inner fender/Frame bottom plate
Tool kit
Instrument cover assembly
Foot pedal
Bottom strip
Trunk / saddle
Left and right flat fork guard plate
Back backrest
Side cover
Rear fender
Rearview mirror
Chapter 3 Vehicle body parts
Chapter 1 General information
Chapter 2 Drive system

Side bracket 21
Body bracket 21
Main bracket 21
Front wheel 22
Front wheel composition 22
Composition and disassembly 22
Fault diagnosis 24
Fork, directional column 26
The composition of the fork 26
Fault diagnosis 27
Rear shock absorber 29
Composition of rear shock absorber 29
Fault diagnosis 29
Handlebar assy 30
Braking system 31
System composition 31
Pump body part 33
Forceps part 35
Brake failure check 38
Chapter 4 Electrical system 39
Overview 39
Electrical component location 39
Troubleshooting 40
Instrument 41
Interface definition 42
Lighting system 43
Headlight 43
Rear taillight / rear turn signal 43
Combination switch 44
Right combination switch 44
Left combination switch 44
Throttle fault repair determination method 45
Charger 46
Overview 46
Fault repair determination method 46
Battery 47
Overview 47

List of spare parts
Fault repair determination method 47
Converter 48
Overview and disassembly 48
Fault repair determination method 48
Controller 49
Overview and disassembly 49
Interface definition 49
Fault repair determination method 50
Common port voltage measurements 51
Special tools 52
Burglar alarm 53
Overview and disassembly 53
Interface definition 53
Burglar alarm fault repair determination method 54
Tools and instruments 55
57
Electrical schematics 59

1
A Few Words About Safety
Service Information:
The service and repair information contained in this manual is intended for use by qualified, professional technicians.
Attempting service or repairs without the proper training, tools, and equipment could cause injury to you or others. It could also
damage the vehicle or create an unsafe condition.
This manual describes the proper methods and procedures for performing service, maintenance and repairs. Some procedures
require the use of specially designed tools and dedicated equipment. Any person who intends to use a replacement part, service
procedure or a tool that is not recommended by Yadea, must determine the risks to their personal safety and the safe operation
of the vehicle.
If you need to replace a part, use Yadea genuine parts with the correct part code or an equivalent part. We strongly recommend
that you do not use replacement parts of inferior quality.
For the Owner's Safety:
Proper service and maintenance are essential to the customer’s safety and the reliability of the vehicle. Any error or oversight
while servicing a vehicle can result in faulty operation, damage to the vehicle, or injury to others.
• Improper service or repairs can create an unsafe condition that can cause your customer to be seriously
hurt or killed.
• Follow the procedures and precautions in this manual and other service materials carefully.
For Your Safety:
Because this manual is intended for the professional service technician, we do not provide warnings about many basic shop
safety practices (e.g., Hot parts–wear gloves). If you have not received shop safety training or do not feel confident about your
knowledge of safe servicing practice, we recommended that you do not attempt to perform the procedures described in this
manual.
Some of the most important general service safety precautions are given below. However, we cannot warn you of every
conceivable hazard that can arise in performing service and repair procedures. Only you can decide whether or not you should
perform a given task.
• Failure to properly follow instructions and precautions can cause you to be seriously hurt or killed.
• Follow the procedures and precautions in this manual and other service materials carefully.
For Handling This Vehicle:
• Be sure to turn the main switch OFF and remove the battery before checking or servicing of parts removal/
installation.
• To prevent electric shock, always wear safety protective gears and use insulation tools when checking or
servicing of parts removal/installation.
• Do not work with wearing any metal items.
• Do not work in places where the floor is wet or raindrops fall on.
• When the electrolyte from the battery gets in eyes or on skin, there is a danger of blindness or damage,
so work with precaution. If electrolyte gets in your eyes or on your skin, immediately wash the area with
plenty of water and get medical examination by a specialist.
Avoid using a high-pressure water machine as washing vehicle with high water pressure may cause malfunction of moving parts
or electric parts.
Important Safety Precautions:
Follow the instructions below when checking and servicing the high voltage system.
In this manual, the power supply circuit above DC 48 V series is referred to as high voltage system. Do not touch the wires and
related parts carelessly.
When performing the vehicle maintenance, be sure to wear safety protective gears and use insulation tools. Always check the
safety protective gears and insulation tools for damage before using.
Ensure the safety of others by indicating that the high voltage works is being done on the vehicle when performing work relating
to the high voltage.
Make sure you have a clear understanding of all basic shop safety practices and that you are wearing appropriate clothing and
using safety equipment. When performing any service task, be especially careful of the following:
Read all of the instructions before you begin, and make sure you have the tools, the replacement or repair parts, and the skills
required to perform the tasks safely and completely.
Protect your eyes by using proper safety glasses, goggles or face shields any time you hammer, drill, grind, pry or work around
pressurized air or liquids, and springs or other stored-energy components.
Handling hot or sharp parts can cause severe burns or cuts. So, use other protective wear when necessary, for example gloves
or safety shoes.
If you need to support the vehicle for maintenance, please use jack or special base. Whenever you lift the vehicle, make sure
that the vehicle is always firmly supported.
General Information

22
General Information
How To Use This Manual
This manual is Specific Service Manual for M6L. In order to better meet the needs of customers and service providers for the
maintenance and repair of two-wheel electric vehicles, as well as the needs of service providers, after-sales maintenance
technicians and the marketing and training departments, we have specially prepared a version maintenance manual. This
manual specifically introduces the repair and maintenance information of this type of vehicle. For the basic operation instructions
of the vehicle, please refer to the product manual of the vehicle.
This manual explains how to diagnose, adjust, operate, and replace (repair) the entire vehicle and its parts; it also gives detailed
instructions on how to disassemble and assemble the main parts. Before consulting this book, readers are requested to read the
following information:
Your safety, and the safety of others, is very important, so we provide safety and other information related to vehicle
maintenance in this manual. Of course, it is not practical or possible to warn you about all the hazards associated with servicing
this vehicle. You must use your own good judgement.
You will find important safety information in a variety of forms including:
• Safety Labels – on the vehicle
• Safety information is preceded by one of the following three warnings: danger, warning or attention. These signal words mean:
You will be killed or seriousl y hurt if you don’t follow instructions.
You can be killed or seriousl y hurt if you don’t follow instructions.
You can be hurt if you don’t follow instructions.
• Instructions – how to service this vehicle correctly and safely.
Before servicing each part, please find the corresponding chapter of the faulty part, and do not blindly inquire.
The data in this manual is the data recommended by the editor, and some data (such as tightening torque, etc.) is a range, so
please select the appropriate data according to the specific situation.
SYMBOLS
The symbols used throughout this manual show specific service procedures. If supplementary information is required pertaining
to these symbols, it would be explained specifically in the text without the use of the symbols.
Removal or Disassembly procedure. Points to note when installing/removing.
Lubrication instructions. Replace with a new one before assembly.
Tighten specified torque. Adjust or check parts.
Measure the part for an inspection. Specification of parts.
All information, illustrations, instructions or specifications in this manual are based on the latest product information available
prior to printing in this manual.
Yadea Technology Group Co., Ltd. reserves the right to modify specifications and designs at any time without prior notice and
does not assume any responsibility for them.
No part of this manual may be reproduced or copied without written permission.
This manual is written for those who already have the basic maintenance knowledge of Yadea electric vehicles.

Product model:EM244
VIN number ☆LR4A5NF0*N*******☆
Color: Metallic titanium gray, Bentley blue, New taffeta white
3
General Information
Vehicle Information
VIN number
Motor Model

Category Name Standard configuration
Performance/
parameters
Electrical system
Long× wide × high
Wheelbase
Minimum ground clearance
Torque (N.m)
Speed (Km/h)
Mileage (Km)
Curb weight (excluding battery)
Battery weight
Load (weight)
Motor
Controller
Burglar alarm
Voice announcer
Speed governor
Instrument
Lock set
Converter
Main cable
Headlamp
Battery type
Motor type
Rated continuous output power
Rated speed
Rated voltage
Rated output torque
Undervoltage protection value
Overcurrent protection value
1790×720×1210mm
1260mm
160mm
86(N.m)
45km/h
55km
66KG
11KG
75KG
1200W
12 tube plate ends are joged
Anti-theft device B1D2125557 plug-in and hyun
-
-
Digital display instrument
Main power lock 22-31 large lock cover status
Aluminum shell filling plate end short circuit
485 USB P gear
-
ATL lithium battery
60V20AH
-
DC brushless
≤1200W
680r/min
60V
≥17N.m
52.5V
30A
Capacity/Special
requirements
4
General Information
SPECIFICATIONS
GENERAL SPECIFICATIONS

Torque value
Tighten fasteners to standard torque values unless a torque value is specified for the fastener.
Standard tightening torque
5
Fastener name Thread diameter Tightening torque (N·m) Note
6.8(6) 8.8(8)
Bolts and nuts
/3~23~24M
/7~46~5.35M
/11~79~66M
/52~8112~618M
/04~0363~8201M
/54~5304~2352.1×01M
/55~5425~2421M
/06~0565~845.1×21M
/56~5556~5552.1×21M
/07~0607~0641M
/57~0757~075.1×41M
/58~0858~0852.1×41M
Screws
/5.2~5.10.2~0.14M
/5.5~5.35~35M
/01~68~56M
/32~6102~518M
/03~5282~2201M
Note: The torque value of the screw is applicable to the screw on the cover. If it is used for the connection of iron parts, the
torque value of the bolt should be referred to.
General Information

Drawing and wiring diagram
6
General Information
Harness technical requirements:
1. The wiring harness is straight and beautiful without shaking;
2. There should be no damage to the outer skin of the wiring harness. Wrap the damaged parts with insulating tape;
3. Reduce the excess cable ties, and the remaining amount of the cable ties is 3-5mm.
Cable tie fixing
Wire clamp fixing
Right combination
switch harness
Right brake wire
Saddle lock cable
Switch control cable
Left and right combination
switch harness
Rear brake line
Rear brake line
Combination switch harness
Power off switch
Main cable Front brake tubing
Front brake tubing
Left and right combination
switch harness
Instrument high and low
voltage conversion plug-in
Front
Left brake wire
Left and right combination
switch harness

7
Rear taillight cable
Air switch connection wire split wire
Cushion zip
Main harness
Air switch connection wire split wire
Main harness
Rear brake line
Cushion zip
General Information

8
Rear brake line. Motor wire
MAINTENANCE SCHEDULE
Please perform the pre-ride inspection in accordance with the maintenance schedule described in the maintenance schedule
table of the user manual.
■Check ▲Adjustment ●Replace ♦Lubricating
ITEMS EVERY
DAY 60 DAYS 180 DAYS 360 DAYS
1. Whether the handlebar rotation and steering parts are loose and
worn ■● ■● ●▲
2. Whether the pedal components are worn and whether they rotate
flexibly ■● ■● ♦
3. Whether the tire is properly inflated and whether the tire is worn ♦■
4. Whether the light bulb is on ■♦ ■♦ ■♦ ■♦
5. Whether the brake pad is worn ♦ ♦
6. Whether the rim is deflecting or deformed ■ ■ ♦
7. Whether the front fork of the frame is deformed ■ ■ ♦
8. Whether the fasteners are loose ■ ■ ▲
9. Is the brake good? ■ ■▲■▲ ▲♦
10. Whether the big horn is on ■▲♦
11. Whether the charger power cord is worn ♦■
12. The head tube, flat fork and shock absorber connected to the
frame ●
• The maintenance schedule for vehicles used in households shall be as specified in the table above.
• For non-domestic use (such as: business, commercial, corporate collective, group purchase, lease) vehicles,
the maintenance schedule shall be implemented according to the half of the above table.
General Information

Drive system
Installation and disassembly
• →16
• →18
• →15
• →18
Job order Quantity Remark
1 2
2 1
3 1
9
As shown in the figure, the motor has two M16-1.5 nuts and two M6*12 bolts fixed on the vehicle. After
disassembly, the motor can be removed;
There are 12 threaded holes on the end cover of the motor (the outlet end of the motor), which are directly
connected with the magnetic guide ring through the bolts of the inner hexagon.
In the process of disassembly, the power should be cut off first, then pull out the U, V, W three cables and
the Hall wire harness, and finally use the related tools to carry out mechanical disassembly and assembly.
Seat cushion
Back backrest
Footrest
Side cover
Left/right flat fork guard plate
Braking drum
Rear wheel (motor)
Job name/part name

Drive system
10
Fault diagnosis and maintenance
Motor abnormal noise
When troubleshooting the abnormal noise of the motor, please idle the motor first and confirm the source of the abnormal noise
again. After confirming the abnormal noise is from motor, proceed with the following procedure.
1. Check the motor bearings
Check whether the motor bearing lubrication operation is normal NO Replace bearing
YES
2. Check the inside of the motor
Check if there is foreign matter inside the motor?
YES
Clear foreign objects or replace the motor
The motor does not work
Before troubleshooting the motor does not work, please confirm whether the motor does not work because the side support is
not retracted (the side support switch is not closed). After confirming the elimination of the temple problem, proceed with the
following procedure.
1. Check the switch of parking switch
Turn off the power switch, and use the multimeter diode position to
check whether the P position switch is normal? NO switch of parking switch failure
YES
2. Check the brake power switch
Turn off the power switch, use a multimeter diode file to check
whether the brake power off switch is normal? NO Brake power switch failure
YES
3. Check the throttle grip
Confirm that the power supply voltage of the throttle grip is between
4.5-5.5V, use a multimeter DC voltage file to check whether the
signal line voltage of the speed-adjusting rotor is in the range of
0.8V-4.2V?
NO Throttle grip failure
YES
4.Motor Hall
Check whether the motor Hall connector is in good contact? NO Motor Hall connector failure
YES
5.Confirm the motor Hall supply voltage
Confirm that the power supply voltage of the motor Hall is between
4.5-5.5V, and gently turn the motor by hand. Does the UVW Hall
wire change between high and low levels to ground?
NO Motor Hall failure
YES
First replace the control to confirm whether the motor returns to
normal, if not, replace the motor.
Tools for reparing
noitacilppArebmuNemanlooT
riapAsevolG Wear the motor and motor controller
during operation
stlobdnastunfoesudnaylbmessasiDtesenOhcnerW
stlobdnastunfogninethgit-erPtesenOhcnerweuqroT

Vehicle body parts
Body parts
1. 8.
2. 9.
3. 10.
4. 11.
5. 12.
6. 13.
7.
11
Front fender → 12
Front cover → 12
Front inner fender/Frame bottom plate → 13
Tool kit → 14
Instrument cover assembly → 15
Foot pedal → 15
Bottom strip → 16
Trunk / saddle → 16
Left and right flat fork guard plate → 17
Back backrest → 18
Side cover → 18
Rear fender → 19
Rearview mirror → 20

Vehicle body parts
Front fender
•
•
•
Front cover
ST4.2x13
12
Front cover → 12
Instrument cover assembly → 15
Handlebar → 30
Hexagon flange bolts
(big head) and flat cushion
combination
Cross recessed
pan head tapping
screws

M6×16
ST4.2
ST4.2x13
ST4.8x16
•
•
•
•
•
•
•
13
Front inner fender/Frame bottom plate
Hexagon flange bolts
(big head) and flat cushion
combination
Cross recessed pan head
tapping screws
Cross recessed pan
head tapping screws
Self-tapping clips
Front cover → 12
Seat cushion → 16
Foot pedal → 15
Back backrest → 18
Tool kit → 14
Bottom strip → 16
Frame base plate → 13
Vehicle body parts

Tool kit
ST4.2x13
Front cover →19
Job order Quantity Remark
1 1
2 1
3 1
4 1
14
Cross recessed pan
head tapping screws
ST4.2x13
Cross recessed pan
head tapping screws
Job name/part name
Front compartment
Front compartment small pieces
Charging port cover
Hook
Vehicle body parts