Here are the following techniques:
1. First press the pedal several times, turn on the engine, increase the throttle, don't move, press it hard and step on it all the way.
2. When starting with your feet, lightly press the start lever. If you feel that the combination with the starter gear is becoming heavy, push the starter lever hard and at the same time release the oil from the starter. intermittent throttle to the right, then throttle immediately, which can help get started.
3. When it is difficult to start, lightly press the start lever several times without refueling, and allow a little oil and gas to enter the cylinder. When starting the engine, increase the throttle slightly. on the start lever, be quick to meet the engine speed requirements when starting.
4. There is no need to squeeze the clutch lors when you start with your foot. Simply shift the gear into neutral, turn on the key and quickly squeeze the start lever.
5. If it's a cold start, you need to pull the wind and start. You can also hold the clutch to start when there is a gear. However, for some small displacement horizontal cylinder engines. , it must be empty. It can only be started on foot.
Detailed information:
Four key points about motorcycle starting performance:
1. gasoline atomization
If the gasoline sent into the cylinder is not well atomized and more than half is vaporized, the spark plug of a conventional motorcycle spark plug cannot ignite liquid gasoline, so the atomization of the carburetor is very important! In cold weather, thecylinder wall is cold. Once the atomized gasoline enters the cylinder, it condenses into small oil droplets when it meets the cold cylinder wall, thereby reducing the efficiency of gasoline atomization.
2. Gas compression in the cylinder
It is usually easiest to feel on a pedaling engine when the piston rings are worn and leaking and the starter lever has failed. depressed, you will feel that the engine has no compression force, the engine will be more difficult to start. In a four-stroke engine, the small throttle valve limits the engine's air intake and the engine's actual compression ratio is greatly affected. This is the main reason why the four-stroke engine generally has low operating efficiency.
Also, during the engine starting process, closing the choke too tightly will reduce the air intake volume and affectwill detect the compression effect of the mixture.
3. Electric spark quality
AC ignition motorcycles have been in poor condition for a long time and the magnets on the generator flywheel have deteriorated, causing the charging coil to come out at slow speeds when starting of the motor. Insufficient power causes the igniter to spark at high voltage, which is one of the main reasons why some AC igniters have difficulty starting.
A high quality DC ignition rarely exhibits this problem. Therefore, when the engine has difficulty starting, you should check whether the ignition system can still ignite and how strong the spark is. A relatively simple method is to perform an out-of-cylinder bypass test at the engine cylinder head. If you have difficulty starting, try putting a high pressure cap on the spark plug.test image.
It should be noted that since there is high pressure gas in the cylinder, the tested bypass gap outside the cylinder must be twice as large to be considered a gap reliable ignition in the cylinder.
4. Carburetor Type
Carburetor type is critical to the starting performance of the four-stroke engine. It is best to use a carburetor with a manual enrichment valve. One type of carburetor can enrich the oil without affecting the maximum air intake volume, which is very conducive to engine starting.
It is not recommended to use the starter frequently. Although the carburetor can also vent oil when the choke is used, limiting the amount of air entering the cylinder will affect compression pressure and draw in fuel mist. The chemical state is also relatively poor.
What type of maintenance is requiredit perform on the used car you purchased?
First, it may be a problem with the starter. After all, your car has traveled 8W and 5Q kilometers. It is normal for oil leaks. You can go to the repair shop to check it, so there is no way to know the reason.
Secondly, it may be the abnormal noise coming from the brake rotor due to the thinning of your brake pads. Most of them are brake pads and brake rotors.
Third, it doesn't matter what kind of oil you change. If you do 10W miles of maintenance it will generally not be serviced unless there are major problems. (unless the repair shop wants to blackmail you. You need an idea!) General repair shops maintenance content: 1. Replace the timing belt, timing belt tensioner, la transition pulley, spark plug, etc. (even if there is no problem, they will be replaced for you, just to be safe) and some oil and water, as well as cleaning the throttle valve, intake system air, fuel injectors, etc. This is a typical repair shop repair item. (It is recommended to find a more familiar master to take a look. After all, you know how to talk on paper.)
Why does it take a long time to light a motorcycle?
< p>It is necessary after purchasing a used car. Maintenance and inspection items:1: Change the third oil filter
The third oil filter is the most basic maintenance item. for the vehicle. When first purchasing a used car, many people will usually perform maintenance on their vehicle. This is indeed a good habit and can inject “blood” fspokes in the engine. But it is worth noting that a used car is after all a used car and the engine may have been slightly worn, so there is no need to choose too high-quality engine oil. When replacing the third oil filter, check other oils, such as antifreeze, brake oil, transmission oil, etc., and add or replace them as appropriate.
Second: Check the tires
There is no need to emphasize the importance of tires for safety. Once tires have reached their lifespan or show significant wear and aging, they need to be replaced. on time. If the car is several years old, you should check the production date and the degree of wear of the tires. Although some tires look new and have deeper treads, the rubber has long since hardened and lost its grip. not recommended to continue to uuse.
Three: check the entire car belt
If you buy a car that is more than 5 years old and has more than 70,000 kilometers, you should focus on checking the vehicle.The entire belt of the car. If it is a car with a timing belt, it is best to replace the timing belt to ensure safety. Don't just save money for a moment, which will eventually lead to bigger losses for yourself.
Fourth: Check the brake system
Buying a used car cannot just work, but it must also be able to stand up. It goes without saying how important brake quality is. After purchasing the car, car owners should check the thickness of the brake pads and whether there are obvious chamfers or cracks on the brake discs. In the event of significant wear, they must bere replaced. immediately. Also check if the brake oil pipe is leaking air or oil.
Five: Interior cleaning, sterilization and deodorization
A used car is a used car after all. We do not know who the previous owners were or which ones. what they did in the car, and what they did, I don't know anything, but I feel very unhappy when the car doesn't smell like me. Therefore, deodorization and disinfection of the newly purchased used car compartment cannot be ignored. Car owners can go to a beauty salon to use steam antivirus, negative ion air purification, air conditioning duct cleaning and other methods to remove all kinds of odors remaining in the car. car, as well as the smell left by the previous owner of the car.
Six: Wash the car, beautify and refreshhoist your car
Once the car has been inspected and serviced and the interior of the car has been disinfected and deodorized, you should do a complete stain removal, deep waxing or polishing. Restore the shine to your car and make it feel like you're driving a new car.
It is very harmful for the starter. The maximum duration of each electric start must not exceed 5 seconds. If it doesn't work, wait a while and then restart it. If the car is cold, you can step on it with both feet to remove the cylinder. This method of starting the car is very beneficial to the original residual oil in the car and inhales the new oil and gas mixture.
1. carburetor
2. Replace the spark plug
3. A line of cylinder replacement only costs less than 30 yuan in total