Red Seal Motorcycle Technician Practice Exam

How do you properly clean a motorcycle air filter?

1. By rinsing it with water

2. Using a suitable cleaner and then letting it dry completely before re-oiling

3. By blowing it dry with compressed air

4. With soap and hot water

The correct answer is: Using a suitable cleaner and then letting it dry completely before re-oiling

Cleaning a motorcycle air filter is crucial for maintaining optimal engine performance. The correct approach involves using a suitable cleaner designed specifically for air filters, especially if it’s a foam or oiled filter. After applying the cleaner, it’s important to thoroughly rinse the filter to remove any dirt or debris. Once rinsed, allowing the filter to dry completely is essential; any moisture left can lead to issues such as mold growth or dirt accumulation. Once dry, re-oiling the filter helps to trap additional dirt and particles, enhancing its efficiency. Using water alone or soap and hot water can damage the filter material, especially if it’s not designed to withstand such treatment. Rinsing with water without a designated cleaner may not effectively remove all contaminants. Blowing the filter dry with compressed air can distort the filter and reduce its effectiveness. Proper care ensures the air filter functions optimally, which directly impacts the engine's performance and longevity.