Pramac Evaporative Fuel Leak / Venting Issue

Strong fuel smell around the standby generator even when not running

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Possible Causes

Leaking fuel tank cap seal, Faulty tank vent, Small seep at fittings, Overfilled fuel tank expanding in heat

How to Fix / Troubleshooting

Safety first: Avoid sparks and open flames. Ventilate the area.

  • Inspect cap and vent: Check the fuel cap gasket for cracks and replace if hardened. Ensure the vent is not blocked.
  • Check fittings: Wipe all fuel line joints and look for dampness or staining. Tighten or reseal as needed.
  • Correct fuel level: Do not fill the tank above the recommended maximum. Leave expansion space.
  • Monitor: After corrections, recheck for odor over several hours. Persistent strong smell may require a pressure test of the tank by a professional.
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Repair Difficulty

Easy 2/5

Required Part

Fuel Tank Cap
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