Air Filter Cleaning – Replacement Guide for 1979 Suzuki RM60

Shop parts for a 1979 Suzuki RM60 Dirt Bike.

Your 1979 Suzuki RM60 is a classic minibike known for its lightweight, quick-revving two-stroke engine and responsive handling – all of which depend heavily on a clean, properly maintained air filter. Neglecting the air filter not only robs performance but puts the cylinder, piston, and crankshaft at risk due to increased dirt and dust ingestion, especially given the off-road environments these bikes were built for.

Why Air Filter Maintenance Matters on the RM60

  • Engine protection: The foam air filter is your first – and most crucial – line of defense against dirt.
  • Performance: A clogged or neglected filter can severely reduce power and throttle response on small-displacement engines like the RM60.
  • Reliability: Airborne grit can lead to rapid engine wear – proper air filtration is vital for the RM60's premix-lubricated piston and crank system.

Proprietary MotoSport Air Filter Cleaning & Replacement Steps for the 1979 Suzuki RM60

  1. Remove the Seat: Using the 12mm socket or wrench, loosen seat bolts and lift to unveil the air box.
  2. Access & Remove the Air Filter: The RM60 uses a foam air filter, secured either by a single central bolt or clip. Carefully loosen/undo, gently extract the filter to avoid debris falling into the intake.
  3. Inspect the Filter: Examine for tears, hardened foam, or shrunken edges. Damaged filters should be replaced immediately. For original specs, note that the RM60 accepts Twin Air filter SKU TA153115 for confirmed fitment as per parts listings.
  4. Clean the Filter:
    • Massage the filter in a container of air filter cleaner or gentle solvent (never gasoline, as it degrades foam and glue).
    • Rinse thoroughly with clean water, then squeeze – do not wring – and allow to air dry completely.
  5. Oil the Filter:
    • Once fully dry, apply a proper foam filter oil. Squeeze out evenly to ensure all foam cells are coated, but filter is not dripping oil.
  6. Reinstall:
    • Before returning the filter, wipe out any dust or debris from the air box interior. Check the rubber sealing edges for cracks or aging – replace if necessary.
    • Install the freshly oiled filter and secure with the original hardware. Confirm a tight seal to prevent bypass dust.
  7. Replace the Seat: Bolt down and double-check no tools are left in the intake path.

Replacement Intervals – RM60 Specific Notes

  • After every ride: In dry or dusty conditions, or after every 2-3 rides in less severe environments, check and clean the filter.
  • Replace: If the original filter foam is crumbling or will not clean fully, install a new filter. The RM60 filters are widely available as reproductions for vintage models with SKU matches confirmed to TA153115.

Unique Considerations for the 1979 RM60

  • Air box compatibility: The foam filter is sized for the small, round intake found on this minibike. Other model filters (RM50, later RM60) may not fit – always verify fitment before purchase.
  • Pre-mix engine: Any dirt entering the engine directly compromises both top and bottom ends due to absence of independent lubrication. Air filter neglect is especially punishing to this model's crank bearings.
  • Vintage plastics: Avoid aggressive solvents on the air box to preserve original plastic, which can become brittle with age.

For continued reliability and to get the most out of your 1979 Suzuki RM60, regular air filter service is essential. Check out all available air filters, cleaning products, and vintage OEM options at MotoSport – your trusted source for dirt bike maintenance parts.

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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.