Echo SRM 2620

Discussion in 'Mechanic and Repair' started by MWHC, Oct 8, 2019.

  1. MWHC

    MWHC LawnSite Senior Member
    from Wyoming
    Messages: 255

    I have A 2 year old Echo SRM 2620 trimmer that is going through spark plugs. Last one made it 3 weeks. Can a failing coil cause plugs to crap out fast like this? Any suggestions or ideas?
  2. Valk

    Valk LawnSite Gold Member
    Messages: 3,360

    New air filter installed?
    Cam15 likes this.
  3. Breezmeister

    Breezmeister LawnSite Silver Member
    Male, from South Jersey
    Messages: 2,458

    I doubt it.....Not a whole lot of information there.

    Use a good quality spark plug to start with, NGK, Bosch, Champion etc. Gap it to spec. Good mix, mixed to oem spec.

    Get fuel from some place else for a couple of weeks. The tanks can get stirred up when the they are filled from a tanker truck. It can get pass the filters in the pumps .......

    And speaking of filters, you did inspect the fuel line in your tank ? Was the filter on the end of the fuel line.......
    Cam15 likes this.
  4. BigFish

    BigFish LawnSite Fanatic
    Messages: 5,374

    You might wanna pull the muffler and inspect the cyl. exh port fer clogging. Also look at the piston fer scoring, stuck rings, etc.
    You running longer string ? That will foul plugs unless kept revved up.
    Shouldn't have to, but ya can try a hotter plug.
    Cam15 likes this.
  5. OP

    MWHC LawnSite Senior Member
    from Wyoming
    Messages: 255

    Thanks for the ideas. I pulled the muffler and cleaned carbon on the first failure. The fuel is 91 octane with no ethanol/amsoil Sabre 50:1. The fuel is used on about 10 other small units and purchased weekly. I will replace the air filter, as I cleaned it the first time. I did not check the fuel filter. I will pull the fuel filter and replace.

    Yes I run without guards on all the trimmers (5) of them, and I know it adds stress to them. I don’t think I could even trim a yard with the guard on after 20 years.
    hort101 likes this.
  6. ltdlawn

    ltdlawn LawnSite Gold Member
    Messages: 3,834

    A lot run that amsoil a bit lighter like 80:1 that could be issue but assuming it would be across the board for other trimmers too.

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