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Generac IQ3500 / iQ3500 — Prepare Fuel System/Engine for Storage

Maintenance · engine/fuel system

For the Generac IQ3500 / iQ3500, from the Generac owner's manual.

Applies to: Generac IQ3500, Generac iQ3500 engine

Before you start

  • Eye protection required to avoid spray from spark plug hole when cranking engine

Procedure

  1. Change engine oil.
  2. Add fuel stabilizer, or drain fuel into an approved container and run engine until it stops.
  3. Run engine 10-15 minutes to circulate stabilizer if added.
  4. Remove spark plug.
  5. Pour a tablespoon (5-10cc) of clean engine oil or fogging agent into cylinder.
  6. Pull starter recoil several times to distribute oil.
  7. Install spark plug.
  8. Pull recoil slowly until resistance is felt, then gently release.

Specs & values

  • Adequately treated fuel can be stored up to 24 months

Full service-parts list: Generac IQ3500 →

Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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