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electric vehicles

visit e-mio.eu

•  Check the condition of the drive, make sure it moves 

the wheel correctly.

•  Check the condition of the lights, make sure that all 

the bulbs light up correctly and the lights respond 

to commands given by switches.

•  Check the condition of all parts, make sure all bolts 

are tight, check the tension of the front and rear 

brake cables and make sure the brakes are working 

properly.

•  Check all moving parts such as the steering wheel. 

Make sure that they move lightly and without un-

necessary resistance, lubricate them if necessary.

•  Charge the battery regularly when you don’t use the 

electric motorbike too often. To extend the battery 

life, charging should take place every 15 days in 

summer and every 30 days in winter.

DRIVING INSTRUCTIONS

•  Fold the foot (center or side, depending on which 

you use) and hold the steering wheel steady with 

both hands. Take a well-balanced position, put your 

foot on the ground.

•  Insert the key in the ignition switch and turn to the 

ON position. After turning on the power, grasp the 

accelerator lever.

•  Slowly rotate the accelerator lever to avoid sudden 

acceleration. Move your foot to the vehicle floor. 

The speed of the electric scooter will increase as 

the accelerator handle is turned.

•  Release the accelerator lever and press the brake lever 

to stop the vehicle. Control the speed of the electric 

scooter using the accelerator levers and brakes.

•  Pressing the brake lever will cut off the acceleration 

power.

MAINTENANCE AND ADJUSTMENT

Battery

To extend the life of the battery, store the electric 

motorbike in the garage to prevent low temperature, 

which significantly affects battery performance.

•  Do not disassemble batteries and cells.
•  Keep batteries and cells out of reach of children.
•  Do not connect the chargers cathode and anode 

during the charging and discharging process. It is 

forbidden to use any wires to connect the cathode 

with the anode. This will cause a short circuit.

•  Do not immerse the battery in water.
•  Do not heat the battery to temperatures above 60 

Celsius degrees. Do not place the battery next to 

IMPORTANT VEHICLE COMPONENTS

Chain

The chain can stretch over time - this is normal. The 

chain is tensioned with two counter screws. Clean the 

chain in case of dirt and lubricate with a chain lubricant.

Foot

1.  Central foot: use when parking for a long time.
2.  Side foot: use for temporary parking.

ATTENTION:

 The side cut-out function is acti-

vated when the side stand is folded out, which 

prevents the scooter from moving when the 

accelerator handle is accidentally moved. The 

electric scooter will only be able to move with 

the side foot folded in.

Floor

Do not place any heavy objects on the floor. This will 

affect the balance of the motorbike and may cause 

danger.

Seat

1.  Seat lock: turn the key in the ignition switch to 

the left - you will be able to raise the seat and gain 

access to the storage compartment and battery.

2.  Press the seat down and it will lock automatically.

Front and rear disc brakes

To adjust the brakes to your requirements and adjust 

their clearance, use the adjustable nut.

ATTENTION:

1. The brake works according to its sensitivity. 

You should brake by simultaneously pressing 

the front and rear brake levers to ensure a 

better and more effective braking process.

2. Avoid continuous braking for a long time 

as this may overheat the brakes and reduce 

their efficiency.

3. When pressing the brake lever, release the 

accelerator handle.

BEFORE DRIVING

Before riding an electric motorbike, do the following. 

This will ensure a safe and satisfying ride.

•  Check the condition of the tires, make sure they are 

not worn or cracked.

•  Check the tire pressure.

high temperature sources such as a fireplace, wall 

heating, etc.

•  Do not smash, do not puncture, do not pierce or 

throw the battery.

•  In the event of a battery leak and eye contact, rinse 

immediately with plenty of water and seek medical 

attention.

•  If you notice a strange smell of the battery, its war-

ming up, color change, distortion or other irregu-

larities, immediately stop using the battery and 

move away.

Recommendations for the storage and use of lithium-

-ion batteries

To extend battery life, follow these guidelines:

Charging:

1.  Use only the charger provided with the electric 

motorbike. Connect the power supply to the char-

ger. Insert the charger output connector into the 

battery input connector. When the indicator light 

for fully charged battery comes on, first pull the 

plug from the battery input connector. The usual 

charging time is about 4-5 hours. If the battery 

is damaged, charging or discharging must stop.

2.  Avoid over-discharging the battery, charge the 

battery before it is completely discharged. Full 

discharge of the battery affects its life.

Storage:

1.  Do not store the battery in rooms where it is too hot/

cold and/or humid. The optimum battery storage 

temperature is from -20 to 55 Celsius degrees. The 

room must be dry and clean. Batteries cannot be 

stored in a stacked order.

2.  The battery cannot be stored for a long time without 

charging. Charge the battery once a month. The 

battery should be stored fully charged.

Maintenance:

1.  When you test a single battery cell, you must test 

it directly, not through, for example, a wire. In this 

way a voltage drop can be avoided.

2.  You must put on gloves or cut nails before remo-

ving a single battery cell so as not to damage the 

cell and as a protection against the substances in 

the cell. Pay special attention to the battery cover, 

do not damage it.

3.  It is forbidden to bend the battery cell, drop it, hit 

it, short circuit it or damage its seal.

4.  When assembling the battery, there are a few 

important things to remember: the temperature 

of the soldering iron should not exceed 350 Celsius 

degrees, the soldering time should not exceed 

3 seconds, the soldering frequency should not 

exceed 5 times, the next soldering can be applied 

to the previous ones only after it has cooled down.

Vehicle cleaning

•  Do not use high pressure water to clean the electric 

motorbike. Wetted/wet electrical parts and wiring 

will affect the vehicle’s performance.

•  Do not apply grease to the drum brake and tire.
•  Use appropriate cleaning medium to clean the metal 

parts of the electric motorbike. This will protect the 

metal parts of the vehicle against corrosion.

•  Use a cleaning medium to clean varnished plastic 

parts and clean them with a dry cloth.

Brakes check

Main front and rear wheel brake checkpoints:

1.  Press the adapter (1), turn the adjusting nut (3) 

while holding the brake lever (2) and squeezing 

the brake lever until the distance is 1/3-1/2 L. The 

brake shoes must fit snugly against the brake disc. 

Press the brake lever. When it reaches the braking 

performance, tighten the adjustment nut.

2.  The distance between the brake shoes and the 

brake disc should be 1.5 mm.

3.  Replace the brake shoes when the usable area 

reaches 1/2.

Charger control

1.  Use only the original charger supplied with the 

motorbike scooter. Remember to check the mains 

voltage in your country. Do not confuse the 110 

V charger with the 220 V charger.

2.  The motorbike must be turned off during charging.
3.  Do not move, rotate or subject the battery to 

damage while charging.

4.  Check the charger sockets, make sure that the 

soldered components are not damaged.

Engine and driver maintenance

1.  During the rainy season, do not let the water cross 

the engine center line. This is to protect the engine 

against burnout and damage.

2.  Do not press the brake lever and accelerator handle 

while starting the engine to avoid damaging other 

parts of the vehicle.

3.  Slow down when the weather conditions on the 

road are not good. High vibrations and humidity 

can break the connection of electrical parts.

USER

MANUAL

Maintenance schedule

check 

  adjust 

  replace 

  oil/grease 

Parts to be checked

daily

eve-

ry 60 

days

eve-

ry 

180 

days

engine, moving parts



tires and all light bulbs

brake discs and pads

wheels

fork

brakes

horn, charger and battery

chain

TROUBLESHOOTING

Problem

Cause

Solution

The power indicator will 

light up but the electric 

otorcycle is still not working.

1. The engine is not working properly.
2. The side foot has not been folded or 

is not fully folded, which cuts off the 

power supply.

1. Replace the engine. Call your dealer 

to order a new engine.
2. Fold the side foot.

The power indicator does 

not work when the power 

is turned on.

1. Blown fuse or fuse holder.
2. The battery is not inserted/connected 

correctly.

1. Replace the fuse or fuse holder.
2. Set/connect the battery accordingly.

The distance traveled on one 

charge is smaller than usual.

1. Insufficient tire pressure.
2. Insufficient charging or battery is 

damaged.
3. Frequent stopping and starting, over-

loading the vehicle, driving uphill, strong 

wind.

1. Inflate the tires.
2. Charge or replace the battery. Contact 

the seller to order a new battery.
3. Drive in good weather conditions, on 

level roads, do not perform any rapid 

acceleration and braking maneuvers, 

maintain your normal speed.

The electric motorcycle is 

losing speed.

1. Low battery.
2. The battery is damaged.

1. Charge the battery for 4-5 hours.
2. Replace the battery. Contact the seller 

to order a new battery.

The engine is not working. 1. Brake lines are not in place and cut 

off the circuit.

1. Adjust and re-position the brake lines.

ATTENTION:

 If you encounter other problems, do not disassemble the electric scooter yourself, contact 

an authorized dealer.

with

li-ion

battery

RESOURCES

bulbs:

 1 x 12V 5W W5W (front), 1 x 12V 35W HS1 (front), 

4 x 12V 10W R10W BA15S (direction indicators, orange), 

LED (back)

brake fluid:

 DOT3/DOT4

gearbox oil:

 80W90

electric vehicles

visit e-mio.eu

•  Check the condition of the drive, make sure it moves 

the wheel correctly.

•  Check the condition of the lights, make sure that all 

the bulbs light up correctly and the lights respond 

to commands given by switches.

•  Check the condition of all parts, make sure all bolts 

are tight, check the tension of the front and rear 

brake cables and make sure the brakes are working 

properly.

•  Check all moving parts such as the steering wheel. 

Make sure that they move lightly and without un-

necessary resistance, lubricate them if necessary.

•  Charge the battery regularly when you don’t use the 

electric motorbike too often. To extend the battery 

life, charging should take place every 15 days in 

summer and every 30 days in winter.

DRIVING INSTRUCTIONS

•  Fold the foot (center or side, depending on which 

you use) and hold the steering wheel steady with 

both hands. Take a well-balanced position, put your 

foot on the ground.

•  Insert the key in the ignition switch and turn to the 

ON position. After turning on the power, grasp the 

accelerator lever.

•  Slowly rotate the accelerator lever to avoid sudden 

acceleration. Move your foot to the vehicle floor. 

The speed of the electric scooter will increase as 

the accelerator handle is turned.

•  Release the accelerator lever and press the brake lever 

to stop the vehicle. Control the speed of the electric 

scooter using the accelerator levers and brakes.

•  Pressing the brake lever will cut off the acceleration 

power.

MAINTENANCE AND ADJUSTMENT

Battery

To extend the life of the battery, store the electric 

motorbike in the garage to prevent low temperature, 

which significantly affects battery performance.

•  Do not disassemble batteries and cells.
•  Keep batteries and cells out of reach of children.
•  Do not connect the chargers cathode and anode 

during the charging and discharging process. It is 

forbidden to use any wires to connect the cathode 

with the anode. This will cause a short circuit.

•  Do not immerse the battery in water.
•  Do not heat the battery to temperatures above 60 

Celsius degrees. Do not place the battery next to 

IMPORTANT VEHICLE COMPONENTS

Chain

The chain can stretch over time - this is normal. The 

chain is tensioned with two counter screws. Clean the 

chain in case of dirt and lubricate with a chain lubricant.

Foot

1.  Central foot: use when parking for a long time.
2.  Side foot: use for temporary parking.

ATTENTION:

 The side cut-out function is acti-

vated when the side stand is folded out, which 

prevents the scooter from moving when the 

accelerator handle is accidentally moved. The 

electric scooter will only be able to move with 

the side foot folded in.

Floor

Do not place any heavy objects on the floor. This will 

affect the balance of the motorbike and may cause 

danger.

Seat

1.  Seat lock: turn the key in the ignition switch to 

the left - you will be able to raise the seat and gain 

access to the storage compartment and battery.

2.  Press the seat down and it will lock automatically.

Front and rear disc brakes

To adjust the brakes to your requirements and adjust 

their clearance, use the adjustable nut.

ATTENTION:

1. The brake works according to its sensitivity. 

You should brake by simultaneously pressing 

the front and rear brake levers to ensure a 

better and more effective braking process.

2. Avoid continuous braking for a long time 

as this may overheat the brakes and reduce 

their efficiency.

3. When pressing the brake lever, release the 

accelerator handle.

BEFORE DRIVING

Before riding an electric motorbike, do the following. 

This will ensure a safe and satisfying ride.

•  Check the condition of the tires, make sure they are 

not worn or cracked.

•  Check the tire pressure.

high temperature sources such as a fireplace, wall 

heating, etc.

•  Do not smash, do not puncture, do not pierce or 

throw the battery.

•  In the event of a battery leak and eye contact, rinse 

immediately with plenty of water and seek medical 

attention.

•  If you notice a strange smell of the battery, its war-

ming up, color change, distortion or other irregu-

larities, immediately stop using the battery and 

move away.

Recommendations for the storage and use of lithium-

-ion batteries

To extend battery life, follow these guidelines:

Charging:

1.  Use only the charger provided with the electric 

motorbike. Connect the power supply to the char-

ger. Insert the charger output connector into the 

battery input connector. When the indicator light 

for fully charged battery comes on, first pull the 

plug from the battery input connector. The usual 

charging time is about 4-5 hours. If the battery 

is damaged, charging or discharging must stop.

2.  Avoid over-discharging the battery, charge the 

battery before it is completely discharged. Full 

discharge of the battery affects its life.

Storage:

1.  Do not store the battery in rooms where it is too hot/

cold and/or humid. The optimum battery storage 

temperature is from -20 to 55 Celsius degrees. The 

room must be dry and clean. Batteries cannot be 

stored in a stacked order.

2.  The battery cannot be stored for a long time without 

charging. Charge the battery once a month. The 

battery should be stored fully charged.

Maintenance:

1.  When you test a single battery cell, you must test 

it directly, not through, for example, a wire. In this 

way a voltage drop can be avoided.

2.  You must put on gloves or cut nails before remo-

ving a single battery cell so as not to damage the 

cell and as a protection against the substances in 

the cell. Pay special attention to the battery cover, 

do not damage it.

3.  It is forbidden to bend the battery cell, drop it, hit 

it, short circuit it or damage its seal.

4.  When assembling the battery, there are a few 

important things to remember: the temperature 

of the soldering iron should not exceed 350 Celsius 

degrees, the soldering time should not exceed 

3 seconds, the soldering frequency should not 

exceed 5 times, the next soldering can be applied 

to the previous ones only after it has cooled down.

Vehicle cleaning

•  Do not use high pressure water to clean the electric 

motorbike. Wetted/wet electrical parts and wiring 

will affect the vehicle’s performance.

•  Do not apply grease to the drum brake and tire.
•  Use appropriate cleaning medium to clean the metal 

parts of the electric motorbike. This will protect the 

metal parts of the vehicle against corrosion.

•  Use a cleaning medium to clean varnished plastic 

parts and clean them with a dry cloth.

Brakes check

Main front and rear wheel brake checkpoints:

1.  Press the adapter (1), turn the adjusting nut (3) 

while holding the brake lever (2) and squeezing 

the brake lever until the distance is 1/3-1/2 L. The 

brake shoes must fit snugly against the brake disc. 

Press the brake lever. When it reaches the braking 

performance, tighten the adjustment nut.

2.  The distance between the brake shoes and the 

brake disc should be 1.5 mm.

3.  Replace the brake shoes when the usable area 

reaches 1/2.

Charger control

1.  Use only the original charger supplied with the 

motorbike scooter. Remember to check the mains 

voltage in your country. Do not confuse the 110 

V charger with the 220 V charger.

2.  The motorbike must be turned off during charging.
3.  Do not move, rotate or subject the battery to 

damage while charging.

4.  Check the charger sockets, make sure that the 

soldered components are not damaged.

Engine and driver maintenance

1.  During the rainy season, do not let the water cross 

the engine center line. This is to protect the engine 

against burnout and damage.

2.  Do not press the brake lever and accelerator handle 

while starting the engine to avoid damaging other 

parts of the vehicle.

3.  Slow down when the weather conditions on the 

road are not good. High vibrations and humidity 

can break the connection of electrical parts.

USER

MANUAL

Maintenance schedule

check 

  adjust 

  replace 

  oil/grease 

Parts to be checked

daily

eve-

ry 60 

days

eve-

ry 

180 

days

engine, moving parts



tires and all light bulbs

brake discs and pads

wheels

fork

brakes

horn, charger and battery

chain

TROUBLESHOOTING

Problem

Cause

Solution

The power indicator will 

light up but the electric 

otorcycle is still not working.

1. The engine is not working properly.
2. The side foot has not been folded or 

is not fully folded, which cuts off the 

power supply.

1. Replace the engine. Call your dealer 

to order a new engine.
2. Fold the side foot.

The power indicator does 

not work when the power 

is turned on.

1. Blown fuse or fuse holder.
2. The battery is not inserted/connected 

correctly.

1. Replace the fuse or fuse holder.
2. Set/connect the battery accordingly.

The distance traveled on one 

charge is smaller than usual.

1. Insufficient tire pressure.
2. Insufficient charging or battery is 

damaged.
3. Frequent stopping and starting, over-

loading the vehicle, driving uphill, strong 

wind.

1. Inflate the tires.
2. Charge or replace the battery. Contact 

the seller to order a new battery.
3. Drive in good weather conditions, on 

level roads, do not perform any rapid 

acceleration and braking maneuvers, 

maintain your normal speed.

The electric motorcycle is 

losing speed.

1. Low battery.
2. The battery is damaged.

1. Charge the battery for 4-5 hours.
2. Replace the battery. Contact the seller 

to order a new battery.

The engine is not working. 1. Brake lines are not in place and cut 

off the circuit.

1. Adjust and re-position the brake lines.

ATTENTION:

 If you encounter other problems, do not disassemble the electric scooter yourself, contact 

an authorized dealer.

with

li-ion

battery

RESOURCES

bulbs:

 1 x 12V 5W W5W (front), 1 x 12V 35W HS1 (front), 

4 x 12V 10W R10W BA15S (direction indicators, orange), 

LED (back)

brake fluid:

 DOT3/DOT4

gearbox oil:

 80W90

Summary of Contents for Vento

Page 1: ...electric vehicles visit e mio eu USER MANUAL with li ion battery electric vehicles visit e mio eu USER MANUAL with li ion battery ...

Page 2: ...e features and benefits of an electric motorbike High performance brushless DC motor Digital controller with indicator and overvoltage and undervoltage protection Braking system with power cut off to ensure safe driving High performance battery for greater electric current and longer driving range Front and rear suspension for a smooth and com fortable ride ATTENTION 1 Familiarize yourself with th...

Page 3: ... attention to situations such as the sudden opening of a car door or an unexpected appearance of a vehicle from behind of another vehicle Use extreme caution at intersections and when preparing to overtake other road users Get to know all the functions of your vehicle Practice using the warning lights braking and using the horn Do not carry packages or passengers that could interfere with the visi...

Page 4: ...le when buying non original spare parts on the market ATTENTION Familiarize yourself with the local laws and ordinances that regulate or limit the age of the driver when using this electric vehicle Laws and regulations sometimes differ significantly depending on the country in which you reside It is your responsibility to know and comply with local restrictions TECHNICAL SPECIFICATION Vehicle cate...

Page 5: ...ications and design of the device are subject to change without notice CONSTRUCTION OF AN ELECTRIC MOTORBIKE 1 Rear view mirrors right and left 2 Steering wheel 3 Dashboard 4 Front direction indicators left and right 5 Headlight 6 Front wheel 7 Acceleration lever brakes front and rear 8 Storage box USB charger battery charging port 9 Seat 10 Rear lights 11 Rear direction indicators left and right ...

Page 6: ...19 2 3 4 5 6 7 1 8 15 16 17 12 13 14 10 11 9 fig dashboard fig construction of an electric motorbike 1 2 7 3 4 5 6 8 9 11 10 12 13 14 16 17 18 15 19 2 3 4 5 6 7 1 8 15 16 17 12 13 14 10 11 9 fig dashboard fig construction of an electric motorbike ...

Page 7: ...rake lever 13 Emergency switch 14 Light switch 15 Driving mode change ECO normal 16 Light lever parking traffic lights 17 Horn 18 Turn signal switch IGNITION SWITCH 1 Insert the key in the ignition and turn right to the ON position to start the vehicle 2 With the vehicle running turn the ignition key to the OFF position to turn off the vehicle 3 With the vehicle switched off turn the ignition key ...

Page 8: ...t has not been used for 30 days or more The charging time is 4 5 hours Charging an electric motorbike via the charging socket Turn off the motorbike by turning the ignition key to the OFF position Insert the output plug into the char ging socket of the motorbike see fig 1 and connect the 220 110 V input plug to the wall socket see fig 2 The battery is fully charged when the charger indicator is gr...

Page 9: ...k turn the key in the ignition switch to the left you will be able to raise the seat and gain access to the storage compartment and battery 2 Press the seat down and it will lock automatically Front and rear disc brakes To adjust the brakes to your requirements and adjust their clearance use the adjustable nut ATTENTION 1 The brake works according to its sensitivity You should brake by simultaneou...

Page 10: ...the ignition switch and turn to the ON position After turning on the power grasp the accelerator lever Slowly rotate the accelerator lever to avoid sudden acceleration Move your foot to the vehicle floor The speed of the electric scooter will increase as the accelerator handle is turned Release the accelerator lever and press the brake lever to stop the vehicle Control the speed of the electric sc...

Page 11: ...attery before it is completely discharged Full discharge of the battery affects its life Storage 1 Do not store the battery in rooms where it is too hot cold and or humid The optimum battery storage temperature is from 20 to 55 Celsius degrees The room must be dry and clean Batteries cannot be stored in a stacked order 2 The battery cannot be stored for a long time without charging Charge the batt...

Page 12: ... the adapter 1 turn the adjusting nut 3 while holding the brake lever 2 and squeezing the brake lever until the distance is 1 3 1 2 L The brake shoes must fit snugly against the brake disc Press the brake lever When it reaches the braking performance tighten the adjustment nut 2 The distance between the brake shoes and the brake disc should be 1 5 mm 3 Replace the brake shoes when the usable area ...

Page 13: ... 4 x 12V 10W R10W BA15S direction indicators orange LED back brake fluid DOT3 DOT4 gearbox oil 80W90 Engine and driver maintenance 1 During the rainy season do not let the water cross the engine center line This is to protect the engine against burnout and damage 2 Do not press the brake lever and accelerator handle while starting the engine to avoid damaging other parts of the vehicle 3 Slow down...

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