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Home›Repair guides›Yamaha›Engine oil replacement

Yamaha EF1000iS / EF4500iSE — Engine oil replacement

Maintenance

For the Yamaha EF1000iS / EF4500iSE, from the Yamaha owner's manual.

Before you start

  • Avoid draining engine oil immediately after stopping engine; oil is hot.

Procedure

  1. Place generator on level surface, warm up engine, then stop it.
  2. Remove screws and pull out rear cover.
  3. Remove rubber cap, rubber plug, oil filler cap.
  4. Place oil pan under engine, remove oil drain bolt, drain oil completely.
  5. Check oil drain bolt, gasket, oil filler cap, O-ring; replace if damaged.
  6. Install oil drain bolt.
  7. Add engine oil to upper level.
  8. Install oil filler cap, rubber cap, rubber plug.
  9. Install front cover and tighten screws.

Specs & values

  • Oil drain bolt torque: 30 Nm (3.0 m.kgf, 22 ft.lbf)
  • Engine oil quantity: 1.3 L (1.37 US qt, 1.14 Imp qt)

Source: Yamaha 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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