Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

What are the symptoms of a damaged motorcycle spark plug?

1 Answers

StAutumn

07/29/25 3:53pm

Symptoms indicating the need to replace a faulty motorcycle spark plug include difficulty starting, reduced power, excessive exhaust emissions, and increased fuel consumption. Severe spark plug damage may manifest as scarring, black streaks, cracks, or electrode melting at the tip. Methods to determine if a spark plug is damaged: Remove the spark plug and observe its condition based on the following visual color indicators. A normal spark plug's insulator skirt and electrodes should appear gray-white, gray-yellow, or light brown. A properly functioning spark plug has a reddish-brown insulator skirt, with an electrode gap between 0.8-0.9mm and no signs of electrode burning. If the spark plug is contaminated with oil or deposits but remains undamaged, it can continue to be used after cleaning off the oil and deposits. If the spark plug is severely damaged, showing scarring, black streaks, cracks, or electrode melting at the tip, the cause of the damage should be identified. After troubleshooting, replace the spark plug with a new one. Additionally, if the spark plug appears blackened as if smoked, it indicates an incorrect heat range selection for the spark plug, a rich fuel-air mixture, or oil leakage.

Was this review help?

20

4

Share

More Forum Discussions

Why is there water coming out of the car's exhaust pipe?

The reason for water coming out of the car's exhaust pipe is: The engine exhaust contains water vapor, which condenses into small water droplets when it encounters cold temperatures. These droplets accumulate in the exhaust pipe and are expelled under the force of exhaust pressure during acceleration. In winter, the lower temperatures make condensation more likely. Generally, the condition of the engine can be reflected by the state of the exhaust from the exhaust pipe. The exhaust pipe includes the front exhaust pipe and the rear exhaust pipe. The water droplets expelled from the exhaust pipe are the result of water vapor generated after gasoline combustion condensing in the exhaust pipe and muffler. When the ambient temperature is high, the water vapor is expelled before it can condense. When the ambient temperature is low, the water vapor condenses into water droplets on the walls of the exhaust pipe and is carried out with the exhaust flow.

Can the car still be driven when the tire pressure warning light is on?

When the tire pressure warning light is on, the car can still be driven, but it is recommended to pull over safely and check the tires. If you have a tire pressure monitoring tool, you can check the pressure of all tires. If not, you can get out and inspect them manually. Relevant information is as follows: 1. If the tire pressure warning light comes on while driving, do not panic. Immediately reduce speed, avoid sharp steering and sudden braking, and stop in a safe place to inspect the tires. 2. If you have a portable inflator or tire pressure gauge, you can pull over and check and inflate each tire. If not, drive slowly to the nearest auto repair shop or 4S store.

Will Replacing Low-Configuration Wheels with High-Configuration Ones Affect Annual Inspection?

Replacing low-configuration wheels with high-configuration ones generally will not pass the annual inspection. In practice, it depends on the strictness of the local vehicle management offices, so it is recommended to consult the local vehicle management office in advance. Typically, the wheels of low-configuration models are smaller than those of high-configuration models. Therefore, replacing low-configuration wheels with high-configuration ones is considered a vehicle modification. If the modified wheels are the same size as the original ones, they can pass the annual inspection. However, if the sizes are different, you will need to register the modification with the vehicle management office. Vehicle annual inspection refers to a mandatory test for all vehicles that have obtained official license plates and registration certificates, equivalent to an annual 'health check' for the vehicle based on the safety technical requirements for motor vehicle operation.

What is the reason for the squeaking sound when the Baojun 730 drives on bumpy roads?

The reason for the squeaking sound when the Baojun 730 drives on bumpy roads is due to damaged buffer rubber in the chassis or loose ball joints in the chassis bracket. It is recommended to go to a maintenance station for inspection and repair. Taking the 2021 Baojun 730 1.5T manual fashion 7-seater as an example, this car is equipped with a 1.5T turbocharged engine and a 6-speed manual transmission, with a maximum power of 108kw, a maximum torque of 250nm, a maximum horsepower of 147ps, and a top speed of 170km/h. In terms of suspension, the front suspension type of this car is MacPherson independent suspension, the rear suspension type is torsion beam non-independent suspension, the body structure is unibody, and the power steering type is electric power.

What transmission does the BMW 525 use?

BMW 525 uses an 8-speed automatic manual transmission. The transmission of an automatic manual vehicle is divided into two modes: automatic and manual. The 8-speed automatic manual transmission has 8 gears, and when the car is switched to manual mode, the 8th gear is the highest gear. The BMW 525 is a mid-to-large-sized car under the Brilliance BMW brand, with dimensions of 5106 mm in length, 1868 mm in width, and 1500 mm in height, and a wheelbase of 3105 mm. The BMW 525 is equipped with a 2.0T turbocharged engine, model B48B20C, with a maximum horsepower of 184 hp, a maximum power of 135 kW, and a maximum torque of 290 Nm. The maximum power speed ranges from 5000 to 6500 rpm, and the maximum torque speed ranges from 1350 to 4250 rpm.

What is the plastic panel in front of the car called?

The plastic panel in front of the car is called a deflector. This plastic panel is usually fixed with screws or clips, and as long as it is not broken, there is no problem. Just tighten the screws. The function of the deflector is to reduce the lift generated when the car is driving at high speed. In addition to improving the car's exterior design, car designers tilt the entire body forward and downward to create downward pressure on the front wheels, and flatten the rear of the car to reduce the negative air pressure acting from the roof to the rear, preventing the rear wheels from lifting. They also install a downward-sloping connecting panel below the front bumper, which is integrated with the front skirt of the car body. A suitable air intake is designed in the middle to increase airflow and reduce the air pressure under the car.

Trending Ranking

How to Adjust the Time on an 8th Generation Accord?

Does the Honda Lingpai have a 4-cylinder engine?

What Impact Does Ethanol Gasoline Have on Vehicles?

How to Return Gofun Shared Electric Vehicles

How Long Does It Take to Obtain an A3 License?

Where is the engine thermostat located?

Is the g4fL One of the Top Ten Engines?

What Causes Blue Smoke from the Engine Exhaust Pipe?

How to Check ETC Usage Records?

Can Half Shaft Failure Cause Transmission Abnormal Noise and Jerking?

More Forum Discussions

How to Brake Smoothly?

What are the differences between Mercedes-Benz A-Class, C-Class, and E-Class?

How to activate the auto-lock feature on the 10th generation Accord?

Can 114 Look Up Car Owner's Phone Number?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.