2 or 4 cycle trimmer

Discussion in 'Mechanic and Repair' started by birddseedd, Mar 15, 2013.

  1. jkilov

    jkilov LawnSite Bronze Member
    from MS
    Posts: 1,415

    EPA certification is the manufacturer's thing.

    This is not a car. You buy it and run it for 3000 hrs if it holds up.

    But officially, you're not allowed to modify the emission related components (carbs, ports, mufflers, etc..) at any time.
     
  2. lawnboy dan

    lawnboy dan LawnSite Gold Member
    Posts: 3,712

    dolmar 4 strokes are robin engines
     
  3. birddseedd

    birddseedd LawnSite Silver Member
    Posts: 2,114

    so no gas evaporators?
     
  4. JCLawn and more

    JCLawn and more LawnSite Fanatic
    from MI
    Posts: 5,206

    Robin/subaru if I remember exactly. And wonderful engines.
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  5. JCLawn and more

    JCLawn and more LawnSite Fanatic
    from MI
    Posts: 5,206

    I tell you what my dolmar saw is the easiest 2 stroke engine I've ever started. My friends run sthil saw and they yank and yank trying to get them started. Mine starts 1st or 2nd pull every time. Heat wise not sure. I do know my dealer said they are the simplist 2-stroke motor on the market and that's why they went with them. I know my saw with the upgraded air kit can run in a burning building and that's why fire fighters like it. My shindi hedge trimmer is collest running 2 stroke I think I've ran and super easy to start. So I guess I wonder if what your saying is pretty much only applies to sthil and husky haha
    Posted via Mobile Device
     
  6. birddseedd

    birddseedd LawnSite Silver Member
    Posts: 2,114

    think there would be a market in rotary trimmers?
     
  7. JCLawn and more

    JCLawn and more LawnSite Fanatic
    from MI
    Posts: 5,206

  8. birddseedd

    birddseedd LawnSite Silver Member
    Posts: 2,114

    oh heck yea. tho i posted a video earlier of the guy making that engine. or at least one about the same size. i dont know if i would get a rotery trimmer tho. the engine isnt all that good. powerfull at first but burns up quick.
     
  9. JCLawn and more

    JCLawn and more LawnSite Fanatic
    from MI
    Posts: 5,206

    ld be fun while it lasted. I really want my diesel trimmer though. I don't care if it weighs 100lbs and its back pack, I want one.
     
  10. Patriot Services

    Patriot Services LawnSite Fanatic
    Posts: 12,696

    How so? Mazda proved it for decades. The EPA did the rotary in, not the design.
    Posted via Mobile Device
     

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