Z400 smokes on initial start-up

Discussion in 'Toro' started by sosaysmorvant, Jul 22, 2009.

  1. sosaysmorvant

    sosaysmorvant LawnSite Member
    Messages: 77

    My new Z400 (37hrs) threw a big puff of smoke upon initial start-up two days in a row. Is this normal or a sign of something wrong?

    Oil level and hydro levels were within range.
  2. The Toro Company

    The Toro Company LawnSite Senior Member
    Messages: 354

    Sosaysmorvant -

    Upon a cold start up the engine is usually choked and the choke procedure sends more fuel into the cylinder to start the engine. This creates a richer mixture and creates that initial larger puff of smoke. It will be a black colored smoke and it will only last a few seconds and then will dissipate to the normal amount of engine smoke.

    - The Toro Company

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