i got 025c and its ok has easy start & fuel bulb that i never use and it power good & cuts fine just shame about the flippy caps, i dunno how to help your saw no go issue, I'd shove a bit of ether in it see it pops to life
ms250 trouble
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Do you have any pictures of the muffler mods on the 025?
drf255
BAD CAD
FWIW, you can get a Chinese carb on amazon, shipped to your door, for $13.
You can eliminate the (useless) primer bulb.
You can eliminate the (useless) primer bulb.
Plus you'll get a high speed adjustment.
chainsawman2011
Addicted to ArboristSite
Take off the flywheel and make sure the keys at ain't sheared
Well pulled it apart again checked intake boot and pulse line and fuel line all good, compression good, piston looks perfect intake and exhaust side. It will fire under full choke and rev until you touch the throttle on half choke. Gonna drive over this junk with the tractor soon.
Chris-PA
Where the Wild Things Are
That says the mixture is too lean.
lambs
Stihl crazy after all these years
I have a friend who has a 250 with the same symptoms. It will start and run on full choke. But when you take it off choke, it starts dying and eventually just stops running. He ran the saw out of gas when he last used it, months ago, and refilled it with 93 octane mix this spring. As far as I know, he hasn't fiddled with mixture, so I have to assume he's either got an air leak or the carb is partially clogged.
Is the Walbro carb the one to buy? Is the Chinese version any good? I may end up putting a carb on it for him; that may be simpler than me trying to clean the carb and put a kit in it.
Is the Walbro carb the one to buy? Is the Chinese version any good? I may end up putting a carb on it for him; that may be simpler than me trying to clean the carb and put a kit in it.
I bnought this Chinese Walbro for my 025. Has low and high adjustment and works fine. IIRC, they also sell a kit for it. http://www.ebay.com/itm/Carburetor-...170?pt=LH_DefaultDomain_0&hash=item43d08c0172
drf255
BAD CAD
Carbs made by same manufacturers.
I order carbs for the homeowner grade Husky's all the time. They suffer from the same issues as the Stihl homeowner saw carbs. Both have unserviceable internal check valves. I suppose you could develop a way to fix them, but that costs tons more than just putting a new carb on them.
lambs
Stihl crazy after all these years
Update on this particular MS250. I started wondering about the 93 octane, E-free gas that he bought. Specifically, I started thinking about how often the gas station received deliveries of that particular fuel since so few cars need it. So I asked my friend to dump the gas out of the saw, start it on full choke and just run it out of fuel, then refuel it with TruFuel at 50:1 and start it again. Problem solved.
My 250 gave me fits and I was ready to pitch it......but I went with the truefuel and learned the starting sequence. 3 pulls cold start and 1 pull after that. It has been flawless ever since I got over my stupid. Feel a little guilty about how mad I got and how I bashed.
its not the starting technique. And I'm not using 10$ a liter fuel I'm not a cottager I use my saw for a living. Only got this one on a trade as I thought it would be a good little limbing saw, I was wrong.
I've got one here at the shop with primer bulb. If I rebuild this one it's coming off. The carburetor with all the fuel lines, etc. is all crammed in the air box and doesn't leave much room to work. I'd also change out that junk carb that looks like you can't adjust.
drf255
BAD CAD
I have 025/250's with both Zama and Walbro carbs. Other Stihls I have have a Tilotson.
