Author Topic: 026 Pro Down  (Read 760 times)

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Offline brokenbudget

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Re: 026 Pro Down
« Reply #20 on: April 27, 2014, 09:53:07 am »
I've never found ebay prices to be indicative of what the dealer can sell it for. and most times it's more expensive to buy something off ebay than just going to the dealer.
the wt194 I can get for under $40+tax. the complete carb kit is almost $30+tax. from dealer. ;)
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Offline tinkerswithengines

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Re: 026 Pro Down
« Reply #21 on: April 27, 2014, 08:24:30 pm »
this isn't a saw that's been sitting around for 10-15 years with old gas in it.

I hope no one here gets pissed at me or thinks I'm a "grumpy old man". I just want to make my point more clear since I have posted several times on this topic.

OK, read back to the first post. Saw has seen ethanol. I have seen ethanol damage in carburetors, mainly from the moisture it attracts which ends up in the form of "white rust" or oxidation. The low circuit ports under the welsh plug are not easily cleaned by carb cleaner because the cleaner may not even reach the "clogged" port or ports. He can try but I wouldn't be afraid to bet that he will be removing the carburetor....again.

In my experience I have found that there are three sure fire methods of cleaning the hard to get at circuits or ports on these small carburetors today.

First is to employ a ultra sonic cleaner with a chemical called "Mechanic In A Bottle" or "Star-Tron" heated to 110 degrees F for 25-30 minutes. This method in my shop and my former employment has a 98% success rate!

If no ultra sonic cleaner is available, this method can be tried. Empty the fuel tank of all fuel. Pull the starter cord about 10 times to get the fuel that is in the fuel line and the carburetor out and into the cylinder. Now fill the fuel tank with "Mechanic In A Bottle" to a level that is above the fuel pick up / filter. Pull the starter cord at least 15 -20 times so that the chemical is pulled into the carburetor. Let saw sit over night. Next day, empty the fuel tank and add fresh fuel. Saw should start.

If the MIB chemical is not at hand....Third. Remove the welsh plug, clean with carburetor cleaner and compressed air. Install new welsh plug.

If the owner of the saw showed no mechanical ability in his posts, I would have not directed him to pursuing the task of removing the welsh plug. In fact, I first suggested that he just buy a diaphragm and gasket kit but since he bought the complete kit....go for it!.

He came here looking for help. That said, if someone had discouraged or scared me in that respect 40 years ago, I probably would have had to make my living by doing something else. In other words, he needs to get his feet wet sometime or pay the Stihl doctor every time a small problem arises. Its not rocket science! If all else fails, he buys another carburetor. If that is the case, since Stihl bought out Zama, there is a "cheap" Zama carburetor available now for the 026 / MS 260 Pro. I need to look up the part number. Since I retired, that information is no longer at my finger tips. I installed a Zama on a 026 PRO some time ago and I think it cost me around $30 with shipping from eBay. That said, I must also mention that I had to re-leave some of the plastic inside the tank housing with a Dremel tool. :-\

Dave 
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Offline wfopete

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Re: 026 Pro Down
« Reply #22 on: April 27, 2014, 08:44:46 pm »
Well I got Ďer done.  Didnít mess with the welsh plug or muffler mods for now.  The 026 fired up after about a dozen pulls to draw the fuel in.  Set the low speed to the book setting of 1 turn out & made a few cuts but then got rained out by storms in Arkansas before I could play with adjusting it.  This saw has only a low speed adjustment; no high speed adjustment.  Maybe Iíll upgrade to a better carburetor in the future. I found the screen in the carb clogged up with a gray gooey substance, which wasnít there early on when I started having problems.  The rest of the carb seemed clean.  I got a few things wrong upon reassembly but they were quick and EZ to correct.

I like this saw.  I donít know how it compares with others (Stihl or otherwise) but I found it relatively ez to work on and, to me, well thought out.  My two biggest hassles was getting it clean to work on (gee, whoís fault could that be?) and getting the intake boot over and seated on the cylinder.


Overall good learning experience.  Thanks to all who contributed!  I'm sure I'll have some follow on questions but my comfort level with this saw is way up since last week.

Offline 3000 FPS

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Re: 026 Pro Down
« Reply #23 on: April 27, 2014, 08:52:32 pm »
Well tinkerswithengines personally I think that is some pretty good info, and you are right about the ethanol and water causing problems.   Thanks.
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Offline tinkerswithengines

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Offline 660magnum

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Re: 026 Pro Down
« Reply #25 on: April 28, 2014, 01:10:22 am »
I have a 026 PRO and it is a real nice saw to limb with. It has good balance and power.
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Offline brokenbudget

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Re: 026 Pro Down
« Reply #26 on: April 28, 2014, 04:44:15 pm »
don't get me wrong. the vids are a good help. just don't think it's a good idea for a first timer regardless of talent to attempt welch plugs on a saw they need running right now. screw it up, buy another kit $$. he even admits to being a 'saw noob'. I've seen more problems after somebody has improperly installed them. anything from great idle, revs up and holds a nice tune but falls on its face once the chain hits the wood, to not being able to adjust the low properly, but cuts great. even had a few that just leaked all sorts of fuel while sitting. filling the cases.
and if it was known right off it was the crap carb, my advice would have been to toss it in the bin. even at 'full price', the adjustable carb is well worth it just for the better all over performance.
regardless. the clues are in the first post. the saw would not hold an rpm while cutting. if it was the low circuit blocked, it wouldn't idle, or to get it to, it would be pig rich on the low side. as well as not keep solid rpm's up top. with enough corrosion in there it would also be coming out the passages into the carb bore. and very easy to see.

I still say toss the carb and get the 194 or even the Chinese equivalent. your saw will thank you.
when I grow up, i wanna be an adult.