Air Filter Cleaning & Replacement Guide for 2017 Honda CRF250LRABS
Shop parts for a 2017 Honda CRF250LRABS Dirt Bike.
The 2017 Honda CRF250LRABS features a viscous type air cleaner element specifically designed for this model's dual-sport, fuel-injected engine. Proper maintenance of your air filter is essential to maintaining maximum power and reliable performance. Below you will find MotoSport's unique step-by-step guide to cleaning and replacing the air filter specific to your CRF250LRABS, along with important model-specific notes every owner should know.
Why Clean or Replace Your Air Filter?
- Performance - A clean air filter ensures only clean air enters the engine, preventing dust and debris from causing damage and maintaining optimal fuel efficiency and throttle response.
- Longevity - Regular filter maintenance extends engine life by reducing internal wear.
Recommended Service Interval
- Honda recommends inspecting and cleaning or replacing the air filter every 8,000 miles (12,800 km), or more often if riding in dusty or wet environments. For frequent off-road riders, check the air filter after every ride or two.
Special Note for CRF250LRABS Owners
- This model's viscous type air cleaner cannot be cleaned with compressed air or harsh chemicals. Doing so will degrade its performance.
- Always use a replacement air filter designed for the CRF250LRABS (2017-2020) for perfect fit and optimal filtration.
How to Access, Inspect, and Replace Your Air Filter
- Preparation
Park the bike on a level surface, turn off the ignition, and allow the engine to cool. - Remove the Seat
Use the seat release mechanism to remove the seat and expose the air filter housing. Refer to your owner's manual for specific seat removal instructions if needed. - Open Air Filter Housing
Remove the left side cover and unbolt the airbox cover to access the air filter. - Remove the Air Filter
Carefully remove the air filter element. Take note of its orientation and fit for correct reinstallation. - Inspect the Filter
If the filter appears heavily soiled, damaged, or cannot be adequately cleaned, it must be replaced. The CRF250LRABS viscous filter cannot be aggressively washed or blown out. Gently tap out loose dirt or lightly wipe with a clean, damp cloth if only slightly dirty. - Install New or Cleaned Filter
Reinstall the cleaned or new filter, making sure it is properly seated to prevent unfiltered air bypass. - Reassemble
Replace the airbox cover and side panel. Secure the seat. - Final Check
Inspect all fasteners and make sure the airbox is sealed to protect the engine.
Pro Tips from MotoSport
- Stock viscous air filters are not intended for aggressive cleaning. If you ride in especially dusty or muddy conditions, consider keeping a spare air filter element for quick swaps between rides.
- Aftermarket performance filters suitable for the 2017 CRF250LRABS may offer reusable options; however, usage must comply with Honda's guidance for the viscous type.
- Seal all airbox seams after reinstallation to prevent water and dust ingress during off-road adventures.
Regular maintenance of your CRF250LRABS air filter will keep your bike running at peak performance for years of adventure.
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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.
