What is the spark plug model for the curved beam 110?
2 Answers
The spark plug model for the curved beam 110 is A7TCD8TC. The spark plug is a crucial component of the gasoline engine ignition system. It introduces high voltage into the combustion chamber and generates a spark by jumping across the electrode gap, thereby igniting the combustible air-fuel mixture in the cylinder. Under high voltage, the air between the spark plug's center electrode and side electrode rapidly ionizes, forming positively charged ions and negatively charged free electrons. When the voltage between the electrodes reaches a certain level, the number of ions and electrons in the gas increases like an avalanche, causing the air to lose its insulating properties. A discharge channel forms across the gap, resulting in a "breakdown" phenomenon. At this point, the gas becomes a luminous body, known as a "spark." Accompanied by thermal expansion, a "crackling" sound is also produced. The temperature of this electric spark can reach 2000-3000°C, which is sufficient to ignite the air-fuel mixture in the cylinder's combustion chamber.
My own Honda Cub 110 motorcycle uses the NGK C7HSA spark plug, which is the manufacturer-recommended model. After replacing it, the engine starts much more smoothly. Actually, the spark plug model has a significant impact on engine performance—it's like the heart of the vehicle. A good ignition can make the bike more fuel-efficient and quieter. I recommend checking it regularly, inspecting for carbon buildup every 5,000 km or so. If it appears blackened or cracked, replace it immediately. When choosing a replacement, don’t just buy any substitute, as this can lead to starting difficulties or increased fuel consumption. I’ve even tried replacing it myself—just use a wrench to gently unscrew the old plug and install the new one, tightening it properly. It’s a simple process, but be careful not to overtighten and damage the threads. For routine maintenance, clean any dust around the spark plug to keep the bike running smoothly.
