need a remedy

Discussion in 'Mechanic and Repair' started by Grounds Control, Jun 29, 2005.

  1. Grounds Control

    Grounds Control LawnSite Member
    from 01748
    Messages: 52

    I have a redmax eb7001 blower that won't stay running at speeds above an idle. In fact i have to fully choke it to keep it idling.

    I have checked the following: Air cleaner, gas filter, tore apart and cleaned carb, removed and checked exhaust port, muffler and sparkarrester.

    Is it due to humidity/temps? No adjustment for jetting. Any tricks?

    Thanks in advance
  2. CCWKen

    CCWKen LawnSite Member
    Messages: 113

    Sounds like a fuel problem or lack there of. If the carb is a Walbro style, Did you replace the pump reeds in the carb? These typically get hard and don't seal after a while. Also, the ports in 2-cycle carbs are very small. It doesn't take much to clog one up. (Smaller than a grain of sand.)
  3. Grounds Control

    Grounds Control LawnSite Member
    from 01748
    Messages: 52

    i did not replace any parts in the carb. But fuel does make sense. i will look for a rebuild kit.
  4. fishinpa

    fishinpa LawnSite Senior Member
    from SE PA
    Messages: 293

    FYI: I have a new Echo string trimmer and the ratio is rated 50:1. I tried running it a bit rich the other day by using some 40:1 and it ran like crap. About like you mentiond. I could get the rpm's up but I had to take it there REALLY slowly.

    Double checking your mix might be a good idea berfore having to output cash.
  5. ArchZangel

    ArchZangel LawnSite Member
    from Florida
    Messages: 24

    u have to choke it too run right, then it is running lean. Either it is pulling air in somewhere it shouldn't or the fueling system is failing.
  6. khouse

    khouse LawnSite Bronze Member
    Messages: 1,465

    i would buy a new carb. sounds like you've already worked on it with no results. i cant tell you but i have torn apart and soaked some carbs several times and it still didn't fix tha carb problem. i would buy a new carb and it would. some carbs are just a pain in the a$$
  7. vipermanz

    vipermanz LawnSite Bronze Member
    Messages: 1,773

    try the rebuild kit first
  8. Grounds Control

    Grounds Control LawnSite Member
    from 01748
    Messages: 52

    excellent advice........

    to follow up i changed out (with new parts) gas filter, vent assy tubes from tank and gas cap assy. ran better but not right. finally i gave in and swapped the carb with a new one and it runs like new.

    i did take apart and clean and reassemble the carb (with no new parts). Is it worth the $12 in a rebuild kit to fix it up? (a new carb set me back $48) Can it be fiddle with as far as the jetting? any up grade to an adj carb?

    Thanks for your help....i'm blowing my customers away again!

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