How often does the motorcycle adjust the valve, change the spark plug and overhaul the cylinder block?

How often does the motorcycle adjust the valve, change the spark plug and overhaul the cylinder block?

This is a question left by a cyclist backstage. Let's look at his description first. "Can you talk about the maintenance of motorcycles after different kilometers, such as how many kilometers to adjust the valve clearance and how many kilometers to change the spark plug and cylinder head?"

From the description, this motorcycle friend is also a car enthusiast. After all, motorcycle maintenance is more important. However, regarding the maintenance and maintenance cycle of motorcycles, each brand of vehicles has a detailed maintenance manual. Just refer to personal use and carry out related operations, so I won't repeat the introduction here.

The following focuses on some items that are concerned by the subject and easily overlooked by riders, such as the adjustment of valve clearance, the replacement of spark plugs and the maintenance of cylinder blocks. Let's talk about valve clearance first. The existence and harm of this gap have been introduced in detail in previous articles, so I won't go into details here. We only talk about its inspection.

Generally, there are two sets of standards for adjusting and checking valve clearance. The first set is relatively simple, but there will be fish escaping from the net. The main basis is to operate by judging the noise of the engine valve. If there is a clear valve knocking sound, it needs to be adjusted.

This kind of operation is common in roadside stalls, which requires high experience of maintenance personnel, and some models can not be judged by sound when the valve clearance is too small, so it is not suitable for every model.

It is relatively standard to measure regularly and adjust the valve clearance according to the specified value. Under normal circumstances, this gap should be checked at about 20,000 kilometers.

However, in order to ensure that the best adjustment time is not missed, the suggestion shared by the Cavaliers is to combine these two sets of standards into one. If there is similar abnormal noise in the later period, check the valve clearance no matter how many kilometers you ride, even if there is no similar abnormal noise in the current vehicle, you need to check it at 20 thousand kilometers.

The inspection and replacement of the spark plug will be relatively simple. You can operate it as long as you have a matching wrench, but don't operate it frequently in your spare time, because sometimes your unprofessional disassembly can easily cause secondary injuries. Therefore, the suggestion shared by the knight is that you can disassemble it about 20,000 kilometers to see if its color and electrodes are normal, and you don't need to take care of it at ordinary times.

Under normal circumstances, the color of the spark plug will be yellow-brown, and there will be no scorching marks on the electrode part. If there is no such performance, it is normal, otherwise it needs to be replaced, and it is necessary to check what causes this phenomenon. Only in this way can the spark plug replaced later play its practical effect.

For the "cylinder head" knight concerned by the subject, there is absolutely no need to do maintenance. Once there is a problem inside the cylinder, adverse reactions such as blue smoke and power drop will directly tell us through the exhaust pipe, so this operation can be basically ignored, as long as the lubricating oil is changed normally in the later use.

The above are some maintenance suggestions about motorcycle valve clearance and spark plug. In addition to these two items, motorcycle should also check air filter, brake oil, brake pad, cable, tire, chain, connecting bolt and other parts and assemblies in later use.

In a word, proper maintenance will have the advantage of prolonging the service life of vehicles, but it is totally unnecessary to be too partial. Although the stability of the vehicle depends on the quality of seven points and the maintenance of three points, excessive operation will only bring negative effects. Therefore, according to the maintenance manual, combined with personal use, real-time observation of vehicle performance is the correct operation to maintain the car.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.