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White smoke

Discussion in 'Lawn Mowing' started by TJLC, Jan 4, 2001.

  1. TJLC

    TJLC LawnSite Bronze Member
    Posts: 1,308

    When I start up my exmark w/b's sometimes they pour white smoke out of the exuast,lasting about maybe 3-5 mins. The older one and newer one both do this. It seems to only happen on cold starts. Is this normal or something I really need to have checked out?
  2. Eric ELM

    Eric ELM Husband, Father, Friend, Angel
    Posts: 4,831

    I see you are from Florida. This is probably just a normal exhaust that we see up here in the cold all the time, but since your not used to it being cold, you haven't noticed it before. I have heard it is abnormally cold down there. You should see the exhaust from an engine at 15 to 20 below zero on a calm day. They look like they are on fire. :)
  3. TJLC

    TJLC LawnSite Bronze Member
    Posts: 1,308

    Thanks, Eric. Yes it is very cold down here right now. I forgot to mention that a little oil also comes out with the white smoke. I see it on the belt cover.
  4. SMB

    SMB LawnSite Senior Member
    Posts: 323

    Are you sure that its oil?
  5. Richard Martin

    Richard Martin LawnSite Fanatic
    Posts: 14,700

    It is normal for one lungers to belch some smoke when they start up if the oil is a little overfull or if the mower is stopped with the carb side of the engine lower than the other side. I would only be concerned if there was a black oil deposit on the aircleaner or the engine smoked all of the time.
  6. Runner

    Runner LawnSite Fanatic
    Posts: 13,496

    It may look like oil, but it's probably just condensation. They spit alot of water in the morning cold.
  7. carlsmower

    carlsmower LawnSite Member
    Posts: 84

    try changing the oil and the spark plug, that should take care of the problem, it's solved it for me everytime i've encounter it

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