Spark plugs are not universal for cars and motorcycles. While there are some similarities between spark plugs used in cars and motorcycles, there are also notable differences. The design, size, heat range, and thread size of spark plugs can vary depending on the specific engine and manufacturer.
Motorcycles typically have smaller engines and higher-revving characteristics compared to cars. As a result, motorcycle spark plugs are often smaller in size and have a different heat range to accommodate the higher engine speeds and different combustion requirements.
It is essential to use the correct spark plugs specified by the motorcycle manufacturer for optimal performance and engine longevity. Refer to your motorcycle's owner manual or consult a trusted mechanic to determine the appropriate spark plug type and specifications for your specific motorcycle model.