Air Filter Cleaning & Replacement Guide for 1987 Yamaha TW200

Shop parts for a 1987 Yamaha TW200 Dirt Bike.

The 1987 Yamaha TW200 features a unique, rugged dual-purpose design and rewards consistent maintenance. Air filter cleaning and replacement are essential tasks to ensure optimal engine performance – especially given the TW200's popularity in off-road and dusty environments.

Why Air Filter Maintenance Matters

Your air filter prevents dirt and debris from entering the engine. A clogged or damaged filter can reduce performance, cause hard starting, and even permit engine damage. On the '87 TW200, Yamaha uses a foam filter element that needs regular inspection, cleaning, or replacement, particularly after rides in dusty or wet conditions.

Tools & Materials Needed

  • Phillips screwdriver
  • Non-petroleum-based air filter cleaner
  • Foam filter oil
  • Clean rags or paper towels
  • Light waterproof grease (optional, for sealing edges)
  • Replacement air filter (if needed)

Accessing the Air Filter

  1. Remove the left side panel by unscrewing two Phillips screws.
  2. Lift the seat if better access is needed, though this is not always required on the '87 TW200.2
  3. Remove the air filter cover – secured by several screws – to expose the foam air filter.5

Cleaning the Air Filter

  1. Carefully remove the foam filter; inspect for tears or deterioration. Replace if damaged.1
  2. Tapping the filter gently can remove loose debris. Wash the filter in warm water with a dedicated foam air filter cleaner. Squeeze (do not wring) out excess liquid. Rinse thoroughly and allow it to air dry completely.1
  3. Inspect the filter holder, cover, and air box for dust or dirt; wipe clean with a damp paper towel.3

Oiling the Air Filter

  1. Once dry, apply foam filter oil evenly across the entire filter. Massaging the oil through the foam ensures effective filtration. Do not over-oil.4
  2. Lightly coat the sealing edge with waterproof grease for added sealing against dust intrusion (recommended for the TW200, especially in dusty conditions).3

Reinstallation

  1. Make sure the filter guide and any rubber seals are correctly positioned (check that the inner channel seal is in place for proper airbox fitment on the TW200).3
  2. Install the cleaned and oiled filter.
  3. Reattach the air filter cover, then the side panel.
  4. Ensure all screws are snug, but do not overtighten to avoid stripping vintage plastic parts.

When to Replace the Air Filter

If the filter is torn, permanently stained, losing foam integrity, or no longer seals tightly, replace it with a new one. Riders who frequently operate in wet or dusty environments should consider replacing the filter more often than the manual interval.

Special Notes for 1987 Yamaha TW200 Owners

  • The early TW200's airbox and side panel design means good dust protection, but careful sealing is especially important as the bike ages.
  • Check that no branches or trail debris are lodged near the airbox cover after off-road rides.
  • Inspect the air filter cage and rubber channel seal for cracks or dry rot; replacement parts are available if necessary.
  • This year model's foam element style filter is robust but can degrade with age or repeated cleaning with the wrong chemicals – always use a cleaner appropriate for foam filters.

Maintenance Interval Tips

  • Clean or replace the filter every 600 miles (1,000 km) or more frequently if riding in dusty or wet conditions.2
  • Never ride with a missing or poorly sealed filter – engine damage can occur quickly.

Keep your 1987 Yamaha TW200 ready for your next adventure through routine air filter care, and trust MotoSport.com for all your model-specific parts and maintenance needs.

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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.