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stihl 028wb shutting off at idle

Discussion in 'Chainsaw' started by HoytCummins7, Mar 8, 2010.

  1. HoytCummins7

    HoytCummins7 ArboristSite Lurker

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    hey guys i got a stihl 028 wood boss off of a guy today for $50 didnt think that was a bad deal seeing how i paid $275 for my 028vb at an auction 2 years ago and i also have an 029 that i bought new a few years ago so im not new to these saws but on this 028wb that i just bought it will start up run fine when sawing and running open but when idleing it dies but will start back up but as soon as you let off the throttle it dies a few seconds later. anyone know what might be wrong?
     
  2. pioneerguy600

    pioneerguy600 Tree Freak

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    Sounds fuel related, try turning the L screw out a little more, if that`s a no go turn the screw all the way in until it lightly seats, don`t force it. Now turn the screw back out 1 1/4 turn and start the saw, it should idle there but a little tweak in or out may be needed as the carb diaphagrms probably are not new.
    Try this and get back and let us know how it works.
    Pioneerguy600
     
  3. oscar4883

    oscar4883 Addicted to ArboristSite

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    I would make sure the air filter is clean and set the carb screws to 1 turn out from lightly seated. If that quick fix doesn't work then I would do the standard vac and pressure tests. Good idea to run those tests anyway since the saw is new to you. Then you will know what you are dealing with. Some others will be along with some better info but maybe this will get you started.
     
  4. HoytCummins7

    HoytCummins7 ArboristSite Lurker

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    alright thanks guys i will try that tomorow the saw is out in the garage and im in for the night i was actually planning on taking the saw to a stihl dealer in town to get it looked at and hopefully fixed but ill try that first. and the first thing i looked at was the air filter and it was soaked in gas so i took the air filter off of my 028 parts saw that i have layin around that i picked up at an auction for $5
     
  5. SpaayDawg

    SpaayDawg ArboristSite Operative

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    The filter soaked in gas to me indicates needing a carb kit, the fact that it's letting too much fuel past the carb and into the crankcase then it comes back through the carb into the filter. Maybe might not need a kit, just a good cleaning tho. Worth a try to give it a look yourself, shop prices aren't getting any cheaper.
     
    pinemartin likes this.
  6. Fish

    Fish Account Hold

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    Look at the ignition/points too.
     
  7. HoytCummins7

    HoytCummins7 ArboristSite Lurker

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    the filter got soaked in gas because i had the saw upside down while i was messin with something and gas ran out.
     
  8. HoytCummins7

    HoytCummins7 ArboristSite Lurker

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    do you guys think $50 was too much for this saw? ill post pics of it when i get home from work tonight.
     
  9. volks-man

    volks-man Arboristsite.com Spooner

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    :agree2:

    points wear, wires chafe, and coils can get squirly... especially ones with a trigger unit to replace the points.
     
  10. oscar4883

    oscar4883 Addicted to ArboristSite

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    If it is all intact I would say 50 bucks was not much at all. You will get it figured out. Lots of good info from educated folks.
     
  11. HoytCummins7

    HoytCummins7 ArboristSite Lurker

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    heres some pics of the saw and its all intact i paid $50 and it runs good when your running it just when you let it idle it dies.

    [​IMG][/IMG]
     
    Last edited: Mar 9, 2010
  12. caotropheus

    caotropheus ArboristSite Operative

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    Manage to put the pics on. For $50 is very difficult to go wrong.
     
  13. HoytCummins7

    HoytCummins7 ArboristSite Lurker

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    yeah i tried putting a link to photobucket like i do on other forum sites but it wont work, when i get home tonight i will just list the pics as an attatchment. but the saw is very clean, has a brand new chain on it. nothing is broke i just think it might need a new fuel line because of it shutting off at idle but i have one of them from my dads 028 parts saw.
     
  14. Dale

    Dale AboristSite Guru

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    $50.... you're kidding. I paid $170 for a used 028 AV Super in 1990, and it's still my bread and butter firewood cutter. Shoot, I'll drive to Carlisle and pick it up from you for $50.
     
  15. HoytCummins7

    HoytCummins7 ArboristSite Lurker

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    oh i dont want to get rid of it but do you live near carlisle?
     
  16. HoytCummins7

    HoytCummins7 ArboristSite Lurker

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    hi took the saw into the local stihl dealer the other day and got it back today being told its not worth fixing it needs a new coil and points and condesner and with labor will cost around $250!!! like i said when i start the saw up it runs perfect aslong as you dont let off the gas but as soon as you do 3 seconds into idling it dies. i would still like to work on it myself and try and fix it. do you guys think what the stihl dealer told me is really whats wrong or could it be because they are busy right now and just didnt want to mess with it. i found this on ebay http://cgi.ebay.com/STIHL-028-IGNITION-CHIP-TO-REPLACE-POINTS-CONDENSER_W0QQitemZ380198582268QQcmdZViewItemQQptZUS_Chainsaws?hash=item588599f7fc it replaces the points and condesor but will this work on my saw without electronic ignition?
     
  17. oscar4883

    oscar4883 Addicted to ArboristSite

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    Should be able to just snip the wires going to the points and replace the coil with one from another saw. Coils from a wide range of saws will work. 290, 660, etc., should all work I believe. Takes just a few minutes. IMHO this is a much easier and more reliable fix. Search for 028 coil replacement within the forum and you will find more info. Used coils seem to go for about 25-30 bucks or so.
     

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