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How to install the motor on the bike step by step

1. The direction of installing the wheels
Ebike users have a common confusion when installing wheels. That is the direction in which they should install the wheels.
First, you need to pay attention to the 6 screws on the side of your motor.

When you are sitting on the bike, that side should be on the left. It doesn’t matter if you have a disc brake, the screw of the disc brake should always be on the left hand side.

If you are sitting on a bicycle and install the motor with the screws on the right, your motor will be installed incorrectly and your bicycle will start to move backwards instead of forwards. As can be seen from the two pictures provided in the article, the disc brake screws can be located on both sides of the conversion kit.

bike with motor

What You’ll Need:
Bike motor kit
Measuring instruments for petrol and oil
Spray lubricant (WD40 is good)
Zip ties
Starter fluid

Step 1: Compatibility of bicycles and cars
Before you start installing your motor, you need to make sure everything is compatible. The engine needs to be comfortably inserted and installed in your bicycle frame.

You also need to consider how heavy the motor is and how much weight the bicycle frame can bear. Make sure your bike can drive the motor comfortably. This will include the rear wheels, as this will take some pressure.

Step 2: install the sprocket and remove the rear wheel
First of all, be sure to use a new engine sprocket.

Step 3: install the engine kit
A mounting bracket will be included in the conversion kit. Use it to mount the motor to the bicycle frame. For most kits, the engine will be fixed by one or two nuts, so this is just one case of screwing it in place.

Step 4: install the spark plug
The spark plug is super easy to install. It is a screw-in job-just like a light bulb, it can be completed in a short time!

The function of the spark plug is to generate sparks with gasoline to start the engine. Without a spark plug, nothing will happen. Your bike will be a bike that requires you to pedal. This is a very sad thought, right?

bike motor kit

Step 5: install the clutch
Think of the clutch as a handbrake.

Many cyclists choose to install the clutch near the left handle. It is used to engage/disengage the engine, so easy access is a smart move and will save time.

If this works for you, first remove the left brake lever and replace it with a clutch.

The other end of the wire can enter the rod of the motor.

Take the screwdriver and tighten the wires.


A new sprocket will be adapted to your new engine parts. All the parts are best for each other, this is inner peace.

Some riders choose to use the same sprocket because it will provide low torque. I understand what you think, but it is better to do the job well and use things that are useful for your tools and bicycles. In this case-a new sprocket!

Grab the wrench and remove the two nuts on the rear wheel.

Now you can remove the bicycle chain. This will enable you to completely remove the rear wheel. do you understand?

On both sides of the tire, you should put a rubber bushing. From there, the sprocket screw can enter the interior.

Behind those screws, you should put a steel washer. This will allow you to easily remove each screw, if you need it.

Now you can tighten the screws and nuts and reinstall the rear wheel.

Step 6: Fit The Chain
You will need to put the chain between the engine shaft sprocket and the bikes sprocket.

There will be a motor cover, which you will need to open.

When you come to release the chain then you will have to remove the master link (I explain how to do this in this guide – you’re welcome).

bike with a motor

An end of the chain should be fitted into the sprocket. Once you have several links in there, it’s time to turn the engine gear to work things around. For this, you will likely need a ratchet.

So the other end of the chain goes onto the other sprocket that will be in the rear wheel. When you mount the chain in place, you just need to reconnect it with the master link again.

Step 7: Set The Throttle Up
On the right hand of the handlebars, you can mount and install the accelerator. This will need to be connected to the carburetor.

What’s a carburetor?

Step 8: install the carburetor
This will need to be installed in the engine frame.

Since the location will vary depending on the motorcycle kit you choose, it is best to check the manufacturer’s instructions for an accurate location!

Step 9: install the fuel tank
At the place where the bracket is installed, you should pay attention to installing the fuel tank. Usually, it is mounted on the straight rod of a bicycle.

Once installed, use the tubing included with the motorcycle kit to connect the fuel tank to the carburetor.

Step 10: muffler installation
The silencer is a type of silencer. You can (and should) install it on the engine exhaust. Bolts will be included in the kit.

that’s all! Now you can run around on your electric bike!

Removal and installation of electric vehicle motors
1. How to disassemble and assemble the motor:
(1) Disassembly of the motor:
1. Before the motor, unplug the leads between the motor and the controller. At this time, be sure to record the one-to-one correspondence between the color of the motor lead and the color of the controller.

2. The work site should be cleaned before opening the motor end cover to prevent debris from being attracted to the magnetic steel in the motor. Mark the relative position of the end cover and the hub. Note: Be sure to loosen the screws diagonally to avoid deformation of the motor housing.

3. The radial gap between the rotor and the stator of the motor is called air gap (air gap). Generally, the air gap of the motor is between 0.25-0.8mm. After the motor is removed and the motor fault is eliminated, the original end cover mark must be checked. Assemble, this can prevent the phenomenon of sweeping the bore after the secondary assembly.

(2)The installation of the motor:
1. Before assembling the brush motor, please check the elasticity of the spring inside the brush holder, check whether the carbon brush and the brush holder are rubbing, check whether the carbon brush can reach the maximum stroke in the brush holder, pay attention to the carbon brush and the inverter Position it correctly to avoid damage to the carbon brush or the brush grip.

2. When installing the motor, first clean up the impurities on the surface of the motor components to avoid affecting the normal operation of the motor, and be sure to fix the hub body firmly to prevent the components from colliding and damaging due to the strong attraction of the magnetic steel during installation.

2. Lubrication of the internal gear of the motor:
If the noise of the brushed geared hub motor and the brushless geared hub motor starts to increase, or the gears in the motor are replaced, all tooth surfaces of the gears should be coated with grease. Generally, use No. 3 grease or the manufacturer’s designated grease lubricating oil.

If you are interested in motorized bike and want to know more, you could browse previous articles or visit our Official Website, also choose to leave your message below. If you are interested in electric bike, you can contact us.
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