Maintenance of motorcycle license plate muffler.
A clogged muffler can seriously affect the normal starting and operation of the vehicle.
After traveling over 1500 kilometers, the New Dazhou 125 (Honda King CG machine) motorcycle was unable to start on a harsh winter morning. The after-sales maintenance personnel blindly repaired for most of the time, but could not eliminate the fault. Under the guidance of experts, it was identified as poor exhaust. Remove two new exhaust mufflers, which feel much heavier than before. Place them in a special container and add 100 degree high-temperature boiling water. Soon, a large amount of water will flow out from the exhaust mufflers. The reason is that the drip hole at the bottom of the muffler is blocked, and the water vapor generated by fuel combustion cannot be discharged after cooling water. Over time, a large amount of accumulated water solidifies into ice at low temperatures, clogging mufflers and causing poor vehicle exhaust, making it impossible to start the car. At first, it was a very simple minor malfunction, but the disassembly of the new vehicle was completely unrecognizable, and for a period of time, it was the circuit. For a period of time, the dismantling of the oil circuit caused car owners to lose confidence in their previously reputable vehicles. The maintenance personnel failed to make a judgment, wasting valuable time.
After driving over 30000 kilometers, the Qianjiang Snow Leopard 50 motorcycle feels increasingly weak and lacks power. Replaced the original cylinder components in a maintenance department. Ignition components. After the carburetor malfunctioned, the cause is still unknown. After careful inspection, the exhaust muffler was found to be severely clogged. After the vehicle can only barely start, the car begins to turn off and cannot move forward. Remove the muffler, open a 15cm square window on the inside, use gas welding to burn off a large amount of internal carbon deposits, pour out the combustion ash, and make the muffler exhaust pipe unobstructed. Then use gas welding to weld the composite window. Install and retest the restored muffler on the vehicle to eliminate any malfunctions. In fact, the second wash of the car is prone to problems with the muffler, as the 2T lubricating oil used in the vehicle participates in combustion and forms carbon deposits, which often accumulate in the muffler and clog over time. Therefore, during the second wash of the vehicle, carbon deposits on the muffler, combustion chamber, cylinder exhaust port, spark plug, etc. should be regularly cleaned to avoid related malfunctions.
The failure rate of second wheel drive vehicles is very low. Durability was once loved by people, but it is more expensive than a four wheeler. The serious discharge of sewage will gradually withdraw from the historical stage. However, in the vast rural areas of China, there are still quite a few second-hand cars serving people because they are more leather. More suitable for various harsh road conditions. Most off-road racing cars are two wheelers.
Perhaps, the above-mentioned cylinder components of Qianjiang Snow Leopard 50. Ignition components. The carburetor did not reach its service life, but was replaced by rough maintenance personnel, which added unnecessary costs to the customer. In addition, the original car components are more durable, as well functioning parts run smoothly. I once saw a motorcycle of the same brand that had been ridden for over 60000 kilometers without any replacement parts, and still had strong power.
2、 The muffler loses its silencing function.
The muffler of some four flush vehicles is easily damaged, usually used once a year, due to high temperature oxidation or internal moisture in the rear of the muffler. The combustion exhaust gas corrodes the holes, causing the muffler core to detach, thereby losing its soundproofing function. More front end mufflers burn blue at high temperatures, accelerating oxidation. Over time, corrosion becomes thinner until the hole penetrates and loses its silencing function. Frequent replacement of mufflers can cause endless trouble for car owners. For example, the original Tianjin Honda 90 was a high-quality car that was once admired by people. Its muffler is very durable, and it gets worse after replacing parts. Some must be replaced every six months, otherwise you won't hear the special sound of the Tianjin Honda engine. If the accessory manufacturer uses stainless steel instead of muffler material, it will greatly extend its service life. The author modified various large displacement car mufflers using argon arc welding. Stainless steel mufflers are not only durable but also aesthetically pleasing, with excellent noise reduction effects.
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If you think the cost of modifying stainless steel mufflers is high, you can also use old high-quality secondary flushing mufflers for modification, which can be easily found at garbage collection stations. A lightweight 125 (GY6 shark type) motorcycle has undergone multiple gas welding repairs, but the effect is not ideal. However, the supply of mufflers is limited and very expensive, and the owner's economic conditions are limited, so they are unwilling to replace the product with a new one. I changed it to an old muffler from New World 100, and the noise reduction effect is very good! The cost is very low. The old muffler of AX100.DX100.CY80 can be retrofitted, which is both economical and affordable. The old muffler of the Southern 125 has excellent quality and has been replaced with the 125 car. Not only is the noise reduction effect better than the original car, but the service life is also much longer than the original car's components. One of the secrets is that the old secondary flushing muffler that has been used for a long time has been penetrated by consumed oil, forming a thick protective oil film on the inner wall of the muffler, effectively preventing oxidation and corrosion of the fourth flushing muffler.
3. The impact of mufflers on engine power.
The engine sound system is installed on the engine. Although the noise is minimal, it also reduces power to varying degrees. Long term disrepair of secondary mufflers can lead to engine power attenuation. Blocked carbon deposits will increase the exhaust resistance of the engine, thereby affecting the normal operating cycle of the vehicle. If the four punch car excessively pursues quietness in the processing and manufacturing of mufflers, the performance of engine power will be affected. This is also why the power output of vehicles with the same displacement of 125 cannot be ignored in different aspects.
The author repaired a two stroke light riding K90 motorcycle, with a range of 46000 km/h and a speed of barely 50 km/h before the repair. After carbon deposition on the muffler, the two sound insulation panels in the muffler core were removed and re installed on the test vehicle. The noise reduction effect is not a big problem, but the engine power output is greatly enhanced, with a speed of up to 95km/h and faster starting. The car owner said it feels great!
4、 The muffler is heat-resistant.
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Summer is coming soon. Maybe you don't know the smell of being burned by a motorcycle muffler. This is a very impatient job. Burns are difficult to cure and can leave scars. I have been burned five times by the muffler and know its pain. The design of a motorcycle muffler is a very expensive task. Excessive design bending can affect the smooth exhaust of the engine, and the emission effect will be satisfactory; The design is simple and exposed, which is not conducive to preventing burns. For example, the concealed design of off-road vehicles will be more perfect. If you see the muffler design of an imported large displacement off-road vehicle warped at the rear end, you really can't find it if you don't look closely! The rear of the two small square mouth silencers is smart.
It is recommended that manufacturers increase their investment in technology for the temperature at the front of the muffler. The material is the key to the design of the anti scald cover, which cannot feel the temperature outside. It is advisable and scientific to add a heat resistant net to the muffler.
The impact of 5.2T lubricating oil on the muffler.
Many motorcycle friends are not aware that 2T burning lubricating oil is very important. Among them, low-quality lubricating oil participating in combustion will form a large amount of carbon accumulation in the muffler, which will affect the performance of vehicle power over time. After the combustion of inferior lubricating oil, blue smoke will also be produced, polluting the atmosphere and containing many harmful substances. High quality 2T combustion lubricating oil is different, as it not only produces almost no smoke after combustion, but also emits very few harmful gases. In addition, high-quality lubricating oil participating in combustion can hardly produce carbon accumulation, approaching complete combustion, so the damage to the exhaust muffler will be minimal, greatly extending the carbon accumulation cycle of the muffler. Vehicles that have been using high-quality 2T combustion lubricating oil almost do not need to remove carbon accumulation from the muffler. It is recommended that friends who are loyal to second-hand cars use good fuel for good cars, which will greatly reduce the failure rate of vehicles.
Special reminder: 1. When removing carbon deposits from the exhaust muffler of a second flush vehicle, it is necessary to seek professional operation.
2. Do not throw the muffler into the fire for grilling, as the chrome plating on the surface will be removed and the appearance will be ruined, affecting the overall beauty of the vehicle.
3. The charter muffler should have a small opening on the inside to remove carbon deposits, and the opening should be gentle! After cleaning, there are no visible traces of treatment when loading the vehicle.
