John Deere BC1600 weed trimmer won't stay running

Discussion in 'Mechanic and Repair' started by No Bull, Sep 24, 2008.

  1. No Bull

    No Bull LawnSite Member
    Posts: 60

    I have a john deere bc1600 weed trimmer. it ran great for about a yr then it started acting funny. it wouldn't stay running after it had gotten warmed up. it runs great cold. I have already put on a new carb, ignition coil,cylinder,piston kit. nothing seems to help. I thought maybe the new carb was set wrong. tried readjusting carb worked good for about 10 -15 minute then started to loss power and stall out. What could the problem possibly be. I would like to know what the correct carb settings are for the high and low setting. not sure if thats the problem. I am out of guesses.
     
  2. S DIAMOND

    S DIAMOND LawnSite Member
    from South
    Posts: 108

    N.B. rebuilding aside, it reads that you may have an air leak. Could be your main seals or mounting flanges. You will have to conduct a Pressure and Vacuum test to be conclusive.:(
     
  3. SLR

    SLR LawnSite Gold Member
    Posts: 3,218

    No Bull,
    muffler screen checked & clean?
     
  4. No Bull

    No Bull LawnSite Member
    Posts: 60

    Just out of curiosity what is the correct high and low settings on the carb.
     
  5. No Bull

    No Bull LawnSite Member
    Posts: 60

    I need to know what the correct low & high carb setting are on the john deere bc1600.
     
  6. S DIAMOND

    S DIAMOND LawnSite Member
    from South
    Posts: 108

    This is no doubt the Green and yellow “Homelite” version. Post a carburetor number. Example: Walbro HDA, WT, WA, series types. If it is a Walbro unit, it’s safe to say 1-1/4 turns out from lightly seated is a good starting point.
     
  7. No Bull

    No Bull LawnSite Member
    Posts: 60

    This is a john deere bc1600 trimmer. Engine cover is green. The carb is a Zama H46 24A
     
  8. BigFish

    BigFish LawnSite Gold Member
    Posts: 3,056

    Why keep throwin good money after bad (Homelite)? Bite the bullet and get a good trimmer such as Echo, made by Echo. Lightweight, lasts forever, low maint. and a great warranty.
     
  9. S DIAMOND

    S DIAMOND LawnSite Member
    from South
    Posts: 108

    Yes, Homelite. John Deere and Homelite had a “relationship” at one time. So this trimmer is a re badged Homelite. With that said, Zama calls for one full turn out from lightly seated. Regardless of the setting however, if the unit was reassembled incorrectly (piston orientation, cylinder damage, etc, etc, or if the unit has air leaks, you can dial until the cows come home, it will never adjust correctly and stabilize. Good luck.
     
  10. No Bull

    No Bull LawnSite Member
    Posts: 60

    I would of trashed the bc1600 trimmer but I have already sunk more then it was worth into trying to get it running. so I figured if I can at least get it running I can then sell it and buy a stihl.
     

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