market dynamics
Ten Quick Ways to Troubleshoot a Motorcycle that won't Start (I)
Release date:2020.06.29

1. Cannot start after parking for several days

Knights have some experience, when the foal has been moored for a few days, it is quite difficult to start the engine, breathing heavily for a while and then coming to rest. Experienced people naturally try to start the engine with a cart, which seems easy, but there is a trick to it.

First of all, it is not difficult to determine whether the cause of the failure is a circuit problem or other problems. Twist the car key to the [ON] position and check the horn and headlight. If the horn does not sound, the headlight does not turn ON, indicating that the battery is running low.

This is because the motorcycle battery capacity is small, after parking for a period of time due to continuous self-discharge and lead to low power. This is not a big deal, as long as the motorcycle after the start, travel a distance will be sufficient battery.

Of course, if the battery has died, after the launch still can not charge its normal, should be replaced as soon as possible. Under normal circumstances, in addition to the stepless scooter, other motorcycles can be used to start the engine by cart.

The specific methods are as follows:

First, do a few warm-up exercises to stretch your muscles to avoid overexertion and muscle strain;

Then push the motorcycle out of its parking position and head for a section with at least 10m straight ahead.

Then check the fuel supply system. Does the tank have enough fuel?

Is the gasoline shape set in the open position?

After getting ready, straddle onto the motorcycle and put the transmission into 2 gear (usually 2 or 3 is the easiest to start), but when the engine is not turning, it may be a little difficult to put the transmission into 2 gear, as long as the motorcycle back and forth a few wobbles can be easily put into gear.

After entering band 2, under the condition of the clutch engagement, again hard to shake a few times before and after the motorcycle, take full advantage of the motorcycle itself will be the weight of the piston ring and cylinder wall lubrication, to reduce the starting resistance, but also can avoid the crankshaft at top dead center or it is hard to start the check point location, helps to start up when the cart.

Then, lean ON the left side of the car, hold the handlebar with both hands and maintain the second gear, pull up the choke a little, twist the car keys to the [ON] position, hold the clutch lever with your left hand at the same time, release the clutch, and slowly push the car forward.

When the car reaches as high a speed as possible, release the clutch and turn the throttle, at which point the engine starts.

At the same time, immediately remove the clutch and maintain the throttle, the right index and middle fingers control the front brakes to brake the front wheels and bring the car to a stop.

Put the transmission into neutral with the right foot, put down the parking bracket and let the car idle for 2-3min, then you can start. If you're skilled, you can start the engine by pushing the car forward five meters.


2. The motorcycle cannot start after turning over

It is inevitable to roll over when driving a motorcycle. After several times of hard work, the engine could not restart. In fact, all the fuel in the carburetor leaked out.

However, lost fuel can accumulate in the intake manifold, and if forced to start the engine, the spark plugs will be drenched and the engine will not start.

At this point, you will smell a strong gasoline smell, should be in the waiting time of 10min, the throttle to the maximum, let the carburetor butterfly valve open as far as possible, so that too much gasoline volatilized off, the engine can start normally.

3. It cannot start after turning off by itself when driving in fog

Driving long distance in foggy day, due to high air humidity, it is very easy to cause poor contact of the ignition system, water in the fuel supply system and automatically shut off. It must be removed before restart. The method of self-troubleshooting is as follows:

(1) Ignition system.

(2) Fuel supply system.

4. It cannot start after turning off by itself when the car is hot

(1) Ignition system.

(2) Fuel supply system.

5. When accelerating, it cannot start after flameout

(1) when the engine idle speed acceleration, if transition nozzle clogging, especially the vacuum type carburetor in transitional type (CV), mixture is too thin and on their own after flameout, after cleaning the carburetor transition hole can be smoothly start the engine, should be smooth and soft after start up, try to avoid nasty acceleration, man-made transitional malnourished.

(2) Speed up automatic flameout at high speed. The main influencing factors are the high voltage and large current generated by the acceleration at high speed, which leads to the automatic flameout due to the effect of the high voltage flameout protection circuit in the stabilized rectifier. The former engine can start smoothly after cooling; The latter can start after replacing the new capacitance supplied by the vehicle. However, to completely eliminate the high speed when the acceleration of the fault out of their own. Upon arrival at the destination, the extinguishing protection voltage should be replaced as soon as possible.