Pod-style air filter with an angled boot for vintage Honda CT90, also known as the "Trail 90."
The CT90 originally came with a multi-piece airbox and intake system that drew air from a port on the bike's rear luggage rack. This high-mounted intake allowed riders to ford shallow streams or flooded terrain without water ingestion. However, after decades of use, many old CT90s are missing some or all of their airbox components.
If your CT90 is missing its original airbox, we offer a simple solution—a pod-style air filter. These high-quality filters replace the entire intake system aft of the carburetor, allowing the engine to breathe more freely. The angled boot ensures a proper fit, and the filter even fits under the OEM airbox cover if you still have it. Each filter comes with a mounting clamp and is hand washable.
You may need to re-jet your carburetor with a larger main jet and/or adjust the slide needle clip to compensate for the increased airflow provided by this pod filter. Do not overtighten the mounting clamp, as this can damage the boot or cause the filter to pop off the carburetor.
These filters require no oil. To clean, wash them with mild soap and water, then air dry.
