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Having problems with Red Max 2601 Trimmer

Discussion in 'Mechanic and Repair' started by SpartanBill, Oct 5, 2007.

  1. SpartanBill

    SpartanBill LawnSite Member
    Messages: 91

    I have been through 3 spark plugs in 4 months.
    I'm running valvoline 2-cycle @ 50 : 1 and NKG plug.
    It get used for both trimming a few large ditches and embankments
    with throttle locked and small yards reving up and down. One plug went
    in 2 weeks. Its was a little black but I easily got it clean w/wire brush,
    but plug was still shot. Do I need a hotter plug? Different oil?

  2. Envy Lawn Service

    Envy Lawn Service LawnSite Fanatic
    Messages: 11,087

    Change oils and check your spark arrestor screen too to see that the exhaust can exit without restriction.

    If this persists, it probably needs taking in for carb work... running too rich.

    I've never "fouled" a plug in mine.
  3. lawnboy dan

    lawnboy dan LawnSite Gold Member
    Messages: 3,711

    my redmax 2400 strato charged also foulded plugs when using valoviline. it likes synth oil much better and has never fouled a plug since.
  4. Breezmeister

    Breezmeister LawnSite Bronze Member
    Male, from South Jersey
    Messages: 1,784

    I would change to either redmax brand oil or Stens. Funny thing I've found out about spark plugs, some work better in different engines. Try a Champion CJ 8. If those two things don't help, it could be the carb is running rich
    ericg likes this.
  5. mcambrose

    mcambrose LawnSite Senior Member
    Messages: 518

    i have the same trimmer and have had trouble fouling plugs. However, I found out that I was mixing my oil too rich (about 35:1). I was just refilling the small shindaiwa bottles, but I was filling too full. I replaced the plug and haven't had trouble since. I have noticed however that it gives more problems when not running unit at full throttle.
  6. lawnboy dan

    lawnboy dan LawnSite Gold Member
    Messages: 3,711

    2 yrs on the same plug since i switched to synth oil.
  7. YardPro

    YardPro LawnSite Gold Member
    Messages: 3,570

    lol we run redmax stuff and have a 7001 blower that has used the same plug for 4 years.....

    more than likely the oil mix.

    also we have had no issues with champion plugs in our equipment. have not tried NGK

    i used to race motocross, and in the 2 stroke bikes the NGK were the best... nippodenzo's would foul if you looked at them wrong. champions were marginal at best.

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