After rebuild Stihl ms 250 starts and runs but bogs down almost instantly in wood

[Hu13ix]

I rebuilded our old ms250 that was my first chainsaw "project"
The problem is i cant cut any wood with it even thin one like 10-15 cm wide and after a few trying i noticed black sludge/burned oil dripping down betwen the mufler and the engine (has muffler-gasket-cooling plate)

Tried to tune but almost the same either rich or lean side (used 50:1 sthil oil)

What i bought
-aliexpress carburetor kit with ignition coil 18 usd (i tried a new a second carbutrator but it didnt even started, it was also a cheap one but with good feedback from localshop)
-new clutch and drum rim sprocket,chain tensioner also bar and chain
-oil seal,impulse line,tank vent line
-cheapest cylinder and piston from a localshop

Any good tips?

 

[samaritan]

I rebuilded our old ms250 that was my first chainsaw "project"
The problem is i cant cut any wood with it even thin one like 10-15 cm wide and after a few trying i noticed black sludge/burned oil dripping down betwen the mufler and the engine (has muffler-gasket-cooling plate)

Tried to tune but almost the same either rich or lean side (used 50:1 sthil oil)

What i bought
-aliexpress carburetor kit with ignition coil 18 usd (i tried a new a second carbutrator but it didnt even started, it was also a cheap one but with good feedback from localshop)
-new clutch and drum rim sprocket,chain tensioner also bar and chain
-oil seal,impulse line,tank vent line
-cheapest cylinder and piston from a localshop

Any good tips?

Take a look at "Steves small engine saloon" on "YouTube"

 

[SteveSr]

Any good tips?

Quit using questionable aftermarket parts!

 

[mountainlake]

How could anyone afford to use Stihl oem parts. Steve

 

[ZeroJunk]

Does not look like he is coming back . There is a red plug between the muffler and the clutch side of the saw that wanders out from time to time. And, it is a straight shot out of the chain lubricant reservoir.
Likely coincidental at best.

I have no idea why anybody would want to just throw parts at something that they don't even know what is wrong with it.
Good for eBayers I suppose.