trimmer operation speed....

Discussion in 'Lawn Mowing' started by sdm1976, Jun 15, 2007.

  1. sdm1976

    sdm1976 LawnSite Member
    Posts: 11

    I am new to the business and have never owned any commercial equipemnt until now. This question may have been kicked around a hundred times and could be a worn out topic,but do you have to run a trimmer at full throttle to increase the life of the engine? I have heard to run it full tilt or it will foul the plug. thanks for any info
  2. Grits

    Grits LawnSite Silver Member
    from Florida
    Posts: 2,994

    They are made to run at full throttle, but running at such a high speed is silly most of the time. I tend to run mine at about half throttle in most situations. Sometimes I run at full throttle if there is a decent sized area of grass that was unable to be reached with a mower.
  3. johndeerefan

    johndeerefan LawnSite Member
    Posts: 78

    yep same with me
  4. coonman

    coonman LawnSite Senior Member
    Posts: 682

    Same here. My Redmax is going on its 4th season. Don't worry about it.
  5. sweatyclippingcoveredguy

    sweatyclippingcoveredguy LawnSite Member
    Posts: 183

    Anywhere there is a possiblility to throw stones or damage something I keep it low. Otherwise, full speed ahead.
  6. lawnmaniac883

    lawnmaniac883 LawnSite Silver Member
    Posts: 2,613

    Only use enough throttle to get the job done. Saves gas and trimmer line. I run it at wot when I need to but usually half throttle does it.
  7. lawnspecialties

    lawnspecialties LawnSite Silver Member
    Posts: 2,513

    I also run mine at around half-throttle. Trimmer line is so far advanced in design, it cuts easily without needing tremendous speed.

    One thing, though. Running two-stroke equipment half-throttle tends to cause carbon build-up in the exhaust port over time. During the off season, pull the muffler and gently scrape out the carbon in the exhaust port. This will keep your muffler from getting "stuck" to the block and keep that exhaust port clean. Believe me from experience, when that exhaust port starts to clog up from carbon, you'll be wondering what in the world is killing all my power? :hammerhead:
  8. Richard Martin

    Richard Martin LawnSite Fanatic
    Posts: 14,700

    I only use enough RPM to get the job done. If it fouls a plug I don't care. I'd rather not accidentially slip and burn the grass to the ground. That and I buy spark plugs on eBay. 25 CJ-8 plugs for $20 shipped. I'm still working through the bag of plugs I bought 3 years ago. I think there's somewhere around 20 plugs still in the bag.
  9. sheshovel

    sheshovel LawnSite Fanatic
    Posts: 5,112

    Balls to the walls.
  10. Ocalalawns

    Ocalalawns LawnSite Member
    Posts: 73

    The echo rep told me that it needs to be run full throttle since this is what cools the engine. I run full throttle most of the time and my trimmer is 8 years old without any problems.

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