Stihl ms-290 chainsaw won't start

scrolljMay 7, 2010

I just replaced my engine in my stihl ms290 chainsaw. The reason was it started to smoke. I lost compression due to it and the exhaust side of piston is all scratched up. Not really sure what caused that maybe not enough oil in gas/oil mixture.

Anyways, with oem engine and good compression engine won't start. I have the stihl manual and it says nothing for procedures after changing engine.

I have good spark and if I put a little fuel into combustion chamber it will fire and turn over, but will not stay running.

The gas tank has a good seal I'm guessing, because when I open it, you can hear tank loose pressure. Also with gas tank shut and removing fuel line to the carb, it sprays out.

The manifold does look dry though. Does anyone have any advice. Going to try to clean up carb tomorrow.

Thanks for all the help.


Thank you for reporting this comment. Undo

If you don;t get an answer here, try arborsite. Those guys eat chainsaws for breakfast.

Your problem may be just as simple as a flooded engine--very common on Stihl chainsaws.

    Bookmark   May 9, 2010 at 5:31PM
Thank you for reporting this comment. Undo

Dude if your still hangin in , goe directly to the Arborist Site they have experts who will assist with your needs. This is not a Rocket Science Fix ! You have a very good model and Manufacturered Saw !

    Bookmark   May 11, 2010 at 10:45PM
Sign Up to comment
More Discussions
Who Makes This 'New' Craftsman 50cc Chain Saw?
Doing a little research on possible replacement saws......
honda snowblower problem
i have a honda 928 snowblower... good machine, but...
General craftsman tiller gearbox question.
Ages ago in the early 90's, I bought a Craftsman 5hp...
Woodzig electric pruner
I have a Woodzig electric pruner and use it often....
Deep Spader
Has anyone used a deep spader? How did you like it?...
Sponsored Products
Cates Tannery Bronze Powder Coat Indoor and Outdoor Three Light Ceiling Fan
$286.20 | Bellacor
Filament Design Pendant Lights Coit 4-Light Satin Nickel Pendant CLI-MS4068778
Home Depot
Bulbrite 65W Warm White Dimmable BR40 Halogen Light Bulb - 8 pk. - BULB677
$55.92 | Hayneedle
Fiesta Weave Tray
$47.99 | Dot & Bo
Designers Fountain Outdoor Camden LED32411 Wall Lantern - Oil Rubbed Bronze - LE
$55.50 | Hayneedle
Rizzy Home Spa 18 Inch x 18 Inch Pillow Cover with Hidden Zipper
$54.00 | Bellacor
Powell Mirrored Chest - MIRRORED
$2,299.00 | Horchow
Hughes Sectional with Bumper (2 piece) - Key Largo Grass Green
Joybird Furniture
© 2015 Houzz Inc. Houzz® The new way to design your home™