strong exhaust!

Discussion in 'Lawn Mowing' started by GreenMachine102, Sep 25, 2004.

  1. GreenMachine102

    GreenMachine102 LawnSite Member
    Messages: 219

    I have noticed with one of my newer fs85's only about 6 months old, that I an getting an extreme amount of blueish exhaust smoke, and it is quite overwhelming the odor that is! What could the problem be, too much oil in gas? I use the stihl high performance oil in the little orange bottle.
  2. pjslawncare/landscap

    pjslawncare/landscap LawnSite Bronze Member
    Messages: 1,410

    Experiment with different makes of 2 stroke oils (Echo mix, Shin Mix, ect). Ive use Sthil mix and had the blue smoke as well but others were cleaner. Also may vary mixture %. What are u mixing now, 32 to 1? try 50 to one as long as weather temp is not blistering hot. Id try different brand first though
  3. Envy Lawn Service

    Envy Lawn Service LawnSite Fanatic
    Messages: 11,073

    Yeah, if you are doing 50:1 on the Stihl oil, then try Opti-2 or Amsoil.
  4. lawnchopper

    lawnchopper LawnSite Member
    Messages: 211

    ya, I have the same problem with our sf85 I practically fumigate the area when i use it we are using the stihl oil 50:1 I wished i hadnt bought that case of the stuff at the beginning of the yr. I will be going to Amsoil when this is used up
  5. grass_cuttin_fool

    grass_cuttin_fool LawnSite Gold Member
    Messages: 3,526

    I get the same results with stihl 50:1 quite a bit of smoke. I use ''no smoke'' and almost never see any smoke at all.
  6. apluslawn

    apluslawn LawnSite Member
    Messages: 78

    use opti 2 it is 99% smoke free and eliminates carbon build up
  7. Lbilawncare

    Lbilawncare LawnSite Bronze Member
    Messages: 1,116

    I have to agree, Opti II is great 2-cycle oil. I've noticed a lot less smoke and carbon buildup.
  8. rkbrown

    rkbrown LawnSite Senior Member
    Messages: 533

    I got a lot of smoke using Stihl oil. I, too, switched to Opti and the problem vanished.
  9. rico387

    rico387 LawnSite Member
    Messages: 18

    I have used Mercury Outboard 2cycle oil exclusively for years with great results. Mercury has been building 2cycle engines for a long time and their oil is BIA/certified for small engines. I get no smoke, good fuel economy, and clean plugs.
    Rick IAFF local 2294

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