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Stihl 029 Chainsaw


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#1 bosbar OFFLINE  

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Posted April 14, 2014 - 07:25 AM

New member here. Looked for a search section in case I was asking a redundant question, couldn't find one. So, here goes.

I inherited a Stihl 029 from my late father. I can get it started but, it won't stay running. Seems to be starving for fuel. pulled the pick-up out of the gas tank, looked alright. Can't seem to get the cover off to investigate further. Any tips or suggestions would be helpful.


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#2 Alc ONLINE  

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Posted April 14, 2014 - 07:33 AM

Welcome to GTTalk bosbar . I think there are some Stihl saw owners here so they might be able to help you out


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#3 bh115577 OFFLINE  

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Posted April 14, 2014 - 08:00 AM

Check the fuel line for cracks. May need to pull the carb to inspect all of it.


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#4 MH81 ONLINE  

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Posted April 14, 2014 - 08:11 AM

Cracked fuel line is the first thing in my head as well. Also, I believe the carb has a diaphragm pump? May have gone bad.
I don't know about your area, but our local independant Stihl dealer is great. I would call them and get any parts you need there.

If you don't know of a close dealer, call Stihl and ask them.
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#5 hamman ONLINE  

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Posted April 14, 2014 - 09:36 AM

My 029 had a bad carb on it in the first year after I got it. Had to take it back and put a new carb, under warranty, on it. How long has it been sitting? Take some Seafoam and put i  the tank. Run it and see if that helps. I also had to replace the fuel pickup tube due to small cracks. You can also use Mechanic in a Bottle to help with stubborn rough running engines that have set for a long time. Go do a google search for the Stihl 029 service manual and it will come up. I can't get the link to work.   It should help you out a lot.                                   Good Luck. Welcome to the forum.                                   Roger.


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#6 bh115577 OFFLINE  

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Posted April 14, 2014 - 10:06 AM

Manuals can be found here: http://www.worldoftr.../Stihl Manuals/


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#7 bosbar OFFLINE  

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Posted April 14, 2014 - 10:07 AM

Thanks for the help guys.


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#8 HDWildBill ONLINE  

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Posted April 14, 2014 - 10:12 AM

I see the 029 quite often. As stated first thing is to check the fuel filter and fuel line to the carburetor for cracks.  Then fi that checks out  try some seafoam. Also try adjusting the low and high speed setting's. But if it comes down to the carburetor then what all of us around here, who work on small engines do, replace the carburetor.  Trying to clean one of those carbs is a real PITA and doesn't necessarily work.

 

Oh BTW welcome to GTtalk


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#9 hamman ONLINE  

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Posted April 14, 2014 - 10:59 AM

HDWILDBILL, have you used Mechanic In A Bottle yet? I bought some last week. I put it in a Craftsman snow blower that was running really rough. It hab been sitting for about a year and a half when the PO bought a new one.  I did nothing but put about an ounce in the gas tank let it det for about 5 hours and then go out and it started on the first pull after priming it. It ran smootha nd ran well. I 've had similar experience with Seafoam also. Just wondering if you had used it and wahat was your out come. Thanks.                                                             Roger. 


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#10 WNYTractorTinkerer ONLINE  

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Posted April 14, 2014 - 11:28 AM

:iagree:   Stihls are notorious fuel line crackers!  I usually replace mine every couple years it seems..(I'm sure present day feul has a lot to do with it too)  It would cause the exact symptoms you have..  Dump the tank and replace with fresh fuel and if you introduce a small amount of 2 cycle fuel in the carb bore and it fires & runs but won't stay going, It's either carb or fuel line related.  You can buy them @ your local dealer or there are lots of kits available via EB.  I have seen lots of YT videos on how to replace them too..  Fire back with any questions and also..

 

:welcome:


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#11 HDWildBill ONLINE  

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Posted April 14, 2014 - 12:36 PM

HDWILDBILL, have you used Mechanic In A Bottle yet? I bought some last week. I put it in a Craftsman snow blower that was running really rough. It hab been sitting for about a year and a half when the PO bought a new one.  I did nothing but put about an ounce in the gas tank let it det for about 5 hours and then go out and it started on the first pull after priming it. It ran smootha nd ran well. I 've had similar experience with Seafoam also. Just wondering if you had used it and wahat was your out come. Thanks.                                                             Roger. 

 

No I have not tired Mechanic in a bottle, but your post has perked my interest.  I have stayed with Seafoam because I really haven't found anything that has worked better.  That being said I have had quite a few carb's that Seafoam didn't help and I ended up having to go in clean and rebuild the carb.  I may give it a try. Thanks :thumbs:


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#12 suburban 12 OFFLINE  

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Posted April 14, 2014 - 02:49 PM

Also, I believe the carb has a diaphragm pump? May have gone bad.

 As far as I know, all chainsaws of that age have a diaphragm type carb( a few older ones used floats).

 

 

Try adjusting the fuel jets, they may just need opened more. Best way to test that would be to play with the choke first and see if you can get it to stay running with the choke partially closed. 


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#13 Gabriel OFFLINE  

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Posted April 14, 2014 - 09:21 PM

WELCOME!

#14 Guest_rdehli_*

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Posted April 15, 2014 - 06:51 AM

have you checked the air cleaner element? on my Stihl that can sometime get really dirty and cause issues. Welcome aboard
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#15 classic OFFLINE  

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Posted April 15, 2014 - 05:26 PM

Remove this screw and pop the cover off of the carb. There is a small screen that sometimes gets plugged with gunk from the fuel. I cleaned mine on my 036 and it ran like new on the factory carb settings. You might as well change out the fuel line and filter while you are at it. Carbs are cheap if you have to replace it. There's nothing worse than a saw that won't run right when you need it.
I just replaced the fuel line and filter on my brothers 029, since the fuel line had some cracks in it. The saw runs like new again. I have a lot of hours on my 036 and I wouldn't use anything else. It's a simple saw to work on and has cut all of my firewood for 10 years so far. I've only had to replace the drive sprocket due to wear, the fuel line and filter, and I put a new bar on it last year since the sprocket in the bar was shot. Good luck!

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