redmax trimmer running problem

Discussion in 'Mechanic and Repair' started by bobcatnj, Jul 26, 2006.

  1. bobcatnj

    bobcatnj LawnSite Senior Member
    Posts: 687

    i have an older redmax trimmer maybe 3-4 years old. it takes maybe 3-4 times to pull to start it. it will run for alittle bit at full throttle then it will start jerking and sputtering then turn off. is this a carb problem, engine, or what?
     
  2. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Posts: 1,164

    Does it start right back up or does it need to sit?
     
  3. bobcatnj

    bobcatnj LawnSite Senior Member
    Posts: 687

    starts right up
     
  4. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Posts: 1,164

    Ok just process of elimination when it starts jerking and sputtering can you use the choke to keep it running or does it make no difference and still stalls?
     
  5. bobcatnj

    bobcatnj LawnSite Senior Member
    Posts: 687

    no difference, it dies
     
  6. J&R Landscaping

    J&R Landscaping LawnSite Fanatic
    Posts: 5,096

    Check and make sure the fuel filter is still on the line inside the tank. Also check the fuel lines for cracks.
     
  7. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Posts: 1,164

    Can you easily disconnect your kill wires from the on/off switch coming out of the grip? Usually one to ground and the other goes under the shroud to the coil disconnect them if you can to eliminate the switch/wires from shorting out while the units running, also if someone has removed the top engine shroud they may have pinched the one wire and it may be intermittently grounding out.
     
  8. ed2hess

    ed2hess LawnSite Fanatic
    Posts: 13,311

    Sure way to discount shorting out is to pull the shroud and disconnect kill wire from the coil. On Echo you pull the shroud that covers the clutch assembly(four screws).
     
  9. walker/redmax

    walker/redmax LawnSite Senior Member
    Posts: 367

    Maybe check to see if there is carbon build up in the trimmers carb. I don't think this is the problem because that usually just causes the trimmer to loose power but it is worth a shot.:D
     

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