Straight gas in a 2 cycle

Discussion in 'Mechanic and Repair' started by Lynden-Jeff, Apr 24, 2008.

  1. Lynden-Jeff

    Lynden-Jeff LawnSite Bronze Member
    Messages: 1,405

    So my new employee put some straight gas in our echo 650. My bad since I didn't explain it to them. Now my partner noticed since it started to crap out. We emptied and filled with mixed fuel and it seems to run fine other then a ping at idle. What would this ping be? It seemed to go away a little throughout the day. We used the blower all day for spring cleanup.

  2. ed2hess

    ed2hess LawnSite Fanatic
    Messages: 14,362

    If you would have taken the spark plug out immediately and put striaght oil in then turned the pistion by hand for a a couple hundred revs it would have cleaned up the ring/chanber surface. I would pull the muffler off and see if the rings look like they are okay. Probably should pull the head and check what is going on before you blow something up. I had same thing happen on the 650 and it has gone almost 5 years since that situation and has had heavy use.
  3. jkilov

    jkilov LawnSite Bronze Member
    from MS
    Messages: 1,415

    Somewhere, somehow, someone always manages to put straight gas in 2-strokes, nothing new.
    A few years back I bought a couple of transparent fuel canisters from a stihl dealership. No troubles ever since.
  4. rclopez1118

    rclopez1118 LawnSite Member
    Messages: 15

    The "ping" noise could be your clutch drum too. it has nothing to do with the straight gas issue, but you did say "ping noise". By the way, don`t take anything off other than the plug and add a few drops of 2 cycle oil in the cylinder, just in case it lost any lube in the crankcase. may smoke for a lil bit, but will work just fine.
  5. G.M.Landscaping

    G.M.Landscaping LawnSite Senior Member
    Messages: 939

    It's a blower, not a string trimmer. No clutch
  6. jkilov

    jkilov LawnSite Bronze Member
    from MS
    Messages: 1,415

    The "ping" could be wrecked needle bearing, but its just a guess.

    Good thing your employee noticed, they usually seize up quick.

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