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Air Filter Upgrade Kit Installation Instructions

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Air Filter Upgrade Kit Installation Instructions
DIY Part No. 5099

Replaces: 5001/27987S Air Filter 5009/270579S Air Filter

4.50-5.50 ft-lbs Gross Torque†, 300-550 Series™;
3.0-5.0 Gross HP‡ Classic™, Sprint™, Quattro™, and Q™

1. Remove and retain screw (A) for later reassembly.
2. Remove and discard the original cover (B), filter (C), filter cup (if equipped), base (D), and gasket (E).
3. Install new gasket on carburetor, then install new base.
4. Saturate new filter in clean engine oil, then squeeze to remove excess oil. Place filter in base.
5. Install cover and secure the air filter assembly to the engine with the original screw.

NOTICE: Air filter must be oiled or engine damage will
occur. Saturate foam in engine oil. Squeeze to remove excess oil.

Replace filter cartridge at three month intervals or 25 hours,
whichever occurs first. Replace more often under extremely dusty conditions.

†All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton
‡All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton


1–2 of 2 Questions  
    1. What you are describing is symptomatic of a malfunctioning carburetor. You may have fuel that is going stale and clogging the internal carburetor passages or sticking the valves. Fuel can go stale (turns into a varnish) in as little as 3 weeks.

      Carburetor troubleshooting information can be located within the following FAQ:

  1. 1 answers
    1. We cannot recommend any modifications to the engine.

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