Air Filter Cleaning & Replacement Guide for 2015 Yamaha PW50

Looking to keep your 2015 Yamaha PW50 running strong? Shop parts for a 2015 Yamaha PW50 Dirt Bike.

The air filter is crucial for protecting your PW50's engine from dirt, dust & debris, while maintaining optimal airflow for engine performance. Regular inspection and cleaning not only extend engine life but also prevent power loss and costly repairs. This guide is designed uniquely for MotoSport.com customers and aligns with the specific features of the 2015 PW50 model.

Why Air Filter Maintenance Matters

  • Dual-stage foam design: Your PW50 filter uses two layers of open-pore foam – a coarse outer layer traps big debris and a finer inner layer captures smaller particles, providing superior filtration and maximum airflow for performance.
  • Engine life: Effective filtration defends your engine from premature wear caused by contaminants.
  • Performance: Clean filters deliver better throttle response and steady power output.

How to Clean the Air Filter

  1. Remove the air filter cover:
    • Locate the left rear shock area and find the air filter cover.
    • Use a #3 Phillips screwdriver to remove the center screw on the cover.
    • Press down on the kickstarter if needed to access and pull out the cover.
  2. Take out the air filter:
    • Inspect visually for dirt, tears, and crumbling foam.
    • If the foam has deteriorated or is damaged, replace it immediately.
  3. Clean the air box:
    • Check for dirt inside the air box and wipe with a clean rag.
    • Use a contact cleaner on a rag for stubborn grime.
    • Inspect for cracks in the box – replace if damage is found.
  4. Wash the air filter:
    • Submerge the foam element in a dedicated air filter cleaner or mild soap & water.
    • Soak for 10–15 minutes, then gently work the cleaner through the foam but avoid stretching or tearing.
    • Rinse thoroughly with clean water and allow to air dry completely.
  5. Re-oil the filter (if reusable foam):
    • Apply air filter oil evenly across the surface, ensuring all foam is lightly coated.
    • Squeeze out excess oil but do not wring the foam aggressively.
  6. Reinstall:
    • Replace the filter properly, ensuring a tight seal to prevent unfiltered air intake.
    • Reattach the cover and secure the screw.

Replacing the Air Filter

  • If your OEM foam filter shows signs of cracks, tears, or deterioration, install a new dual-stage foam filter for the PW50. Most high-quality elements are reusable and fit all PW50 models from 1981–2021.
  • Always use filters designed specifically for the 2015 Yamaha PW50 to ensure proper fit and function.

Peculiarities of the 2015 Yamaha PW50 Air Filter Setup

  • The filter assembly is simple but highly effective; a thick, flat foam sealing ring creates maximum contact with the airbox, preventing dirt bypass.
  • The air filter cover is easy to remove and replace, but be gentle to avoid breaking the cover or damaging the plastic air box.
  • The location can collect dust quickly, especially in off-road environments – more frequent checks are advised for young riders or repeated use in sandy/muddy conditions.

Best Practices

  • Inspect and clean the filter every 5–10 riding hours, or more often in dusty conditions.
  • Keep a spare filter on hand for quick swaps.
  • Never operate without a properly sealed and oiled filter.

Regular maintenance of your air filter is the easiest way to enjoy reliable performance, protect your engine, and keep your 2015 PW50 ready for every ride.

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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.