Sym MMBCU User Manual (English)

Questions and Answers:

K
Kurt ReedJul 29, 2025
What to do if my Sym Motorcycle engine does not start?
- H
  hannahfarrellJul 29, 2025
  If your Sym Motorcycle engine won't start, make sure the ignition switch key is in the 'ON' position. Also, check if there's enough fuel in the tank, ensuring the fuel gauge needle isn't at the 'E' position. When starting, apply the front or rear brake while pressing the starter button, and avoid pulling the throttle—keep it fully closed. If the horn doesn't sound when the ignition is on, the fuse might be blown. If the EFi warning indicator is on, or the engine still won't start after turning on the ignition, contact your SYM authorized dealer for inspection.
K
Kimberly MyersAug 3, 2025
How to start a Sym MMBCU Motorcycle?
- H
  Haley SmithAug 3, 2025
  To start your Sym Motorcycle, ensure the ignition switch key is turned to the 'ON' position. Additionally, verify that there is sufficient fuel in the fuel tank, and do not pull the throttle when pressing the starter button; keep it fully closed. Applying the front or rear brake while starting is also necessary.
W
wallacejohnAug 8, 2025
Why my Sym MMBCU won't start?
- C
  Candice OliverAug 8, 2025
  If your Sym Motorcycle's engine isn't starting, first, check that the ignition switch is in the 'ON' position. Next, confirm that the fuel tank has enough fuel. Make sure you are applying the front or rear brake while pressing the start button and that the throttle is fully closed.
A
Ashley DayAug 13, 2025
What to check if Sym Motorcycle doesn't start?
- H
  henrymatthewAug 13, 2025
  If your Sym Motorcycle engine won't start, be sure the ignition is switched to the 'ON' position and that there's enough fuel in the tank. Also, remember to apply either the front or rear brake when you press the starter and keep the throttle fully closed. If the horn doesn't work with the ignition on, the fuse might be blown. If problems persist or the EFi warning light is on, contact your SYM dealer.
M
michellecoleAug 18, 2025
What to do when Sym MMBCU won't start?
- J
  Jessica VaughanAug 18, 2025
  If your Sym Motorcycle is not starting, ensure the ignition switch is turned to 'ON'. Check if there's enough fuel in the tank and that you're not pulling the throttle while starting—keep it closed. Also, make sure the front or rear brake is applied when pressing the starter button. If the horn doesn't sound with the ignition on, the fuse may be blown. If the EFi warning light is on or the issue continues, contact an authorized SYM dealer.
S
sierrarobinsonAug 22, 2025
What causes a Sym MMBCU not to start?
- C
  Christopher BarnettAug 23, 2025
  When your Sym Motorcycle fails to start, verify that the ignition switch is in the 'ON' position and that the fuel tank contains sufficient fuel. Ensure that you are applying the front or rear brake while pressing the starter button, and that the throttle is fully closed. If the horn remains silent when the ignition is on, a blown fuse could be the culprit. For persistent issues or if the EFi warning indicator illuminates, it's best to seek assistance from an authorized SYM dealer.

Sym MMBCU Specifications

General

Brand	Sym
Model	MMBCU
Category	Motorcycle
Language	English

Summary

2. Before Riding

Safety Notification and Warnings

Safety notifications illustrate potential dangers and provide instructions for safe vehicle usage.

Idling Start & Stop Mode Operation

Explains the operation of the Idling Start & Stop mode and its indicators.

3. Safe Riding

Riding Safety Reminders

Key reminders for safe riding, including helmet use, speed limits, and hazard awareness.

Hot Exhaust Pipe Hazard

Warning about the hot exhaust pipe and precautions to avoid burns to rider and others.

4. Driving

Rider Posture and Stability

Importance of rider's posture for safety and maintaining body gravity in the center.

Turning and Braking Techniques

Guidance on safe turning maneuvers and proper braking procedures.

5. Use Genuine Spare Parts

Genuine Parts Recommendation

Emphasizes using SYM Genuine Spare Parts for optimal performance and reliability.

6. Parts Location and Operation

Scooter Parts Identification

Diagrams and labels identifying key parts of the scooter for easy reference.

Component Operation Guide

Detailed explanation of how to operate various components and controls of the scooter.

LED Speedometer Operation

Indicator Lights Overview (Part 1)

Explains side stand, turn signal, and Idling Start & Stop mode indicator lights.

LED Speedometer Operation

Indicator Lights Overview (Part 2)

Details oil, EFI, high beam indicators, and odometer functions.

LED Speedometer Operation

Indicator Lights Overview (Part 3)

Covers ABS, engine overheat, TCS indicators, and fuel gauge functions.

Battery Voltage Gauge Operation

Battery Voltage Display and Warnings

Explains how to view battery voltage and critical voltage level warnings.

Main Switch Operation

Ignition Key Slot Functions

Details the functions of the ignition key slot and its different positions.

Shutter and Key Slot Operation

Explains the operation of the ignition key slot shutter and its opener.

Handlebar Switches Operation (Part 1)

Daytime Running Lights System

Information on the daytime running lights system and its activation.

Left Handlebar Switch Functions

Details functions of left handlebar switches: passing light, engine stop, turn signal, horn.

Handlebar Switches Operation (Part 2)

Right Handlebar Switch Functions

Details functions of right handlebar switches: hazard, Idling Start/Stop, starter.

Other Component Operations (Part 1)

USB Charge Unit Specifications

Details the specifications and features of the USB charge unit.

Front Compartment and Fuel Tank Cap

Operation and precautions for the front compartment and fuel tank cap.

Other Component Operations (Part 2)

Fuel Tank and Refueling Precautions

Safety cautions for refueling and handling gasoline.

Helmet Hook and Luggage Box

Operation and capacity of the helmet hook and luggage box.

Brakes and Footrests Operation

Braking System Operation

Instructions on proper braking techniques and avoiding sudden or continuous braking.

Passenger Footrest Usage

Guidance on using and folding the passenger footrest for safety.

7. How to Start the Engine

Engine Starting Procedure

Step-by-step instructions for safely starting the engine.

8. How to Ride the Scooter

Moving Off and Parking

Procedures for moving off safely and parking the scooter.

Throttle Control

How to use the throttle for acceleration and deceleration.

Transmission System

CVT Mechanism Explanation

Explanation of the Continuously Variable Transmission (CVT) mechanism.

9. Specification

Technical Specifications Table

Comprehensive table detailing all technical specifications of the scooter.

10. Maintenance and Adjustment

Routine Checks Checklist

A checklist of routine inspection items for the scooter's maintenance.

Engine Oil Maintenance

Engine Oil Check and Change Procedure

Procedure for checking and changing the engine oil, including oil grade recommendations.

Engine Oil Strainer Cleaning Procedure

Instructions for cleaning the engine oil strainer and its components.

Brake and Fuel System Maintenance

Fuel Inspection and Refueling Precautions

Procedure for inspecting the fuel level and recommended gasoline type.

Transmission Oil Change and Inspection

Procedure for changing and inspecting transmission oil, including capacity and recommended type.

Brake System Inspection Guide

Guidance on inspecting brake system for leaks, pad wear, and fluid levels.

Brake Fluid and Throttle Maintenance

Brake Fluid Level Inspection

Procedure for checking brake fluid level and required fluid types.

Throttle Free Play Inspection

Procedure for checking and adjusting the throttle grip's free play.

Battery and Tire Maintenance

Battery Inspection and Maintenance

Instructions for inspecting the battery, cleaning terminals, and storage.

Tire Inspection and Pressure

Procedure for inspecting tire condition, wear, and maintaining correct pressure.

Steering, Fork, and Lighting Maintenance

Steering and Front Fork Inspection

Guidance on inspecting steering system and front forks for damage or smooth operation.

Fuse Inspection and Replacement

Procedure for inspecting fuses, identifying blown fuses, and replacement guidelines.

Headlight, Tail Light, Brake Light Inspection

Procedure for checking the functionality and condition of lights.

Lighting, Horn, and Fuel System Checks

Turn Light and Horn Inspection

Procedure for checking the functionality of turn lights and horn.

Fuel Leakage Inspection

Procedure for checking the fuel system for any signs of leakage.

Lubrication and Spark Plug Maintenance

General Lubrication Points

Details parts requiring lubrication and the type of lubricant to use.

Spark Plug Inspection and Gap

Procedure for inspecting spark plug condition and measuring the spark plug gap.

Cooling System and Air Cleaner Maintenance

Cooling System Inspection and Refilling

Procedure for checking coolant level, leakage, and refilling the cooling system.

Air Cleaner Inspection and Replacement

Procedure for inspecting and replacing the air cleaner element.

Coolant Concentration and Washing

Anti-freeze Concentration Table

Reference table for anti-freeze concentration based on temperature.

Washing and Cleaning Procedures

Guidelines for washing and cleaning the scooter, including special care for certain parts.

Windscreen Care and Storage

Windscreen Cleaning and Care

Instructions for cleaning the windscreen and precautions to avoid damage.

Storage Procedure

Long-Term Storage Procedure

Steps for preparing the scooter for long-term storage, including fluid management and battery care.

12. Troubleshooting

Engine Does Not Start Troubleshooting

Step-by-step guide to diagnose and resolve issues when the engine does not start.

13. Periodic Maintenance Schedule

Maintenance Schedule Table

Table outlining periodic maintenance intervals based on mileage and time.

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Sym MMBCU User Manual

Table of Contents

Questions and Answers:

Sym MMBCU Specifications

Summary

2. Before Riding

Safety Notification and Warnings

Idling Start & Stop Mode Operation

3. Safe Riding

Riding Safety Reminders

Hot Exhaust Pipe Hazard

4. Driving

Rider Posture and Stability

Turning and Braking Techniques

5. Use Genuine Spare Parts

Genuine Parts Recommendation

6. Parts Location and Operation

Scooter Parts Identification

Component Operation Guide

LED Speedometer Operation

Indicator Lights Overview (Part 1)

LED Speedometer Operation

Indicator Lights Overview (Part 2)

LED Speedometer Operation

Indicator Lights Overview (Part 3)

Battery Voltage Gauge Operation

Battery Voltage Display and Warnings

Main Switch Operation

Ignition Key Slot Functions

Shutter and Key Slot Operation

Handlebar Switches Operation (Part 1)

Daytime Running Lights System

Left Handlebar Switch Functions

Handlebar Switches Operation (Part 2)

Right Handlebar Switch Functions

Other Component Operations (Part 1)

USB Charge Unit Specifications

Front Compartment and Fuel Tank Cap

Other Component Operations (Part 2)

Fuel Tank and Refueling Precautions

Helmet Hook and Luggage Box

Brakes and Footrests Operation

Braking System Operation

Passenger Footrest Usage

7. How to Start the Engine

Engine Starting Procedure

8. How to Ride the Scooter

Moving Off and Parking

Throttle Control

Transmission System

CVT Mechanism Explanation

9. Specification

Technical Specifications Table

10. Maintenance and Adjustment

Routine Checks Checklist

Engine Oil Maintenance

Engine Oil Check and Change Procedure

Engine Oil Strainer Cleaning Procedure

Brake and Fuel System Maintenance

Fuel Inspection and Refueling Precautions

Transmission Oil Change and Inspection

Brake System Inspection Guide

Brake Fluid and Throttle Maintenance

Brake Fluid Level Inspection

Throttle Free Play Inspection

Battery and Tire Maintenance

Battery Inspection and Maintenance

Tire Inspection and Pressure

Steering, Fork, and Lighting Maintenance

Steering and Front Fork Inspection

Fuse Inspection and Replacement

Headlight, Tail Light, Brake Light Inspection

Lighting, Horn, and Fuel System Checks

Turn Light and Horn Inspection

Fuel Leakage Inspection

Lubrication and Spark Plug Maintenance

General Lubrication Points

Spark Plug Inspection and Gap

Cooling System and Air Cleaner Maintenance

Cooling System Inspection and Refilling