1. Missed the live Ask the Expert event?
    Catch up on the conversation about fertilization strategies for success with the experts at Koch Turf & Ornamental in the Fertilizer Application forum.

    Dismiss Notice

Stihl 4 mix , the throw away trimmers.

Discussion in 'Lawn Mowing' started by dishboy, Aug 4, 2012.

  1. fatguy28

    fatguy28 LawnSite Member
    Messages: 102

    i have a 3 year old km110 i use it for everything trimming bushes and edging runns like a champ
  2. 2stroked

    2stroked LawnSite Senior Member
    Messages: 296

    This is why all i run is 2 stroke husqvarna products.
  3. Richard Martin

    Richard Martin LawnSite Fanatic
    Messages: 14,699

    And yet your signature line begs to differ with you. :nono: It says you use Husqvarna and Stihl. :dizzy:
  4. B&SFTW

    B&SFTW LawnSite Member
    Messages: 232

    the problem I have with vapor lubrication is simple, it's inefficient in several ways that sump lubrication solves.

    with vapor lubrication you burn oil, which takes much more to make the engine produce less pollutants and less smoke to equate a simple 4 stroke without catalyst, ect...

    sump lubrication still can have splash and/or squirt lubrication, so there is no reason for a sump lubricated engine not to have proper lubrication, unless the manufacturer just doesn't do enough testing/use common sense to determine where the engine needs lubrication, so you can't argue that sump lubrication is any worse than vapor lubrication from that standpoint.

    with sump lubrication, you aren't having to pour oil into your gas, the oil (2-2.5 oz, in my case) sits in the sump, and I can use the same synthetic 5w30, or 0w30 my car uses, and recycle it when it's used up, instead of putting it into the atmosphere.

    2 stroke engines can also have a sump, the main reason small 2 strokes haven't typically used a sump is the restrictions put on operating angle by traditional sump designs. briggs and stratton, dolmar, honda, and cub cadet (seriously, many companies have figured this out, how can't you see it's possible to do this right), just from a quick search, have all figured out how to work around operating angle restrictions.
  5. Snyder's Lawn Inc

    Snyder's Lawn Inc LawnSite Platinum Member
    Messages: 4,530

    I ran them they last same as stihl
    the 4 mix I have 4th yr on 2 with no problems
    Since 1985 trimmers I owned stihl and husq 2 stroke I was lucky get 3 years out them most time they are junk
    Im happy with 4 mix
  6. grassmasterswilson

    grassmasterswilson LawnSite Platinum Member
    from nc
    Messages: 4,968

    I've never used a 4 mix but was in a pinch and went to the dealer to pick up another fs-80r, but they were out of stock. Everything I had was stihl so I went with the 4 mix (fs-100??). My dealer went to get it tuned up and couldn't even get it cranked and running.

    May have been a lemon on the shelf or could have been so new that the dealer was unfamiliar. HAd to get an echo which worked in a pinch but I didn't like very much.

    I'm still actually using a fs-80 that must be at least 5 years old. Best running piece I have.
  7. ed2hess

    ed2hess LawnSite Fanatic
    Messages: 14,452

    That is not uncommon......these 4mix can flood and the little BS machine will almost not start until you pull the rope 30 times. Then it will go along for awhile and start just like a champ and run like a champ. Nobody in our crews want to use them when give a choice
  8. Roger

    Roger LawnSite Fanatic
    Messages: 5,943

    I have no doubt to believe what you write is true. But, I'm always fascinated why some people have these problems, and most of us have never seen happen. This is true with other stories - some have trouble after trouble with something, and others have never witnessed the trouble.

    I've had mine FX90 about six years, and it starts and runs better than any Stihl 2 stroker I have, or have had in the past. I can almost bet the mortgage it will start of first-pull every time. I've never had a flooding problem (perhaps because I never set the choke).
  9. Roger

    Roger LawnSite Fanatic
    Messages: 5,943

    Right? Please explain.
  10. Snyder's Lawn Inc

    Snyder's Lawn Inc LawnSite Platinum Member
    Messages: 4,530

    Problems ppl have I have never seen it
    Was in the dealer talking him ask him since 4 mix came out I ask if he seen alot problems He told come to back He said look what sitting there not even one 4 mix all 2 strokes He said not very often see one come in for motor problems
    He said sometimes for rockers adjustment

Share This Page