The last time I used my chainsaw, It kept stalling. I could not keep it running. I had just used a new batch of gasoline with two-stroke engine oil added. As this was the only difference from the previous times I've used the chain saw, I suspect that I either added two much or too little two-stroke engine oil. Which would cause my chain saw tall stall like this, too much two-stroke oil in the gasoline or two little?
Why is the chainsaw stalling
chainsawengineoil
Related Solutions
My guesses without more information would include the crankcase being overfilled with oil, a blown head gasket, or damage to the piston, rings or cylinders.
I doubt that you have the generator running while it sits at an angle, which could let oil slop over into the carburetor float bowl. Although that's a possibility, too, if you have it sitting on a slope.
Since the engine apparently always produced a little while smoke, and since the smoke doesn't start for a while, then doesn't stop for a while after shutting the engine off, it's probably heat-related in one way or another. As the engine heats up, it expands. If there's a damaged head gasket or something like a hairline crack in a cylinder wall, it could open up just enough to let oil seep through once the engine is hot. Or if you have something like damaged or ill-fitting piston rings, oil might start squeezing past the rings once the engine heats up and the cylinder expands.
You mentioned that if you hold your hand in the white exhaust, little oil droplets condense on your hand. The same thing is happening inside the exhaust manifold/pipe, and the heat will cause that condensate to keep smoking until it is all burned off or the temperature drops low enough for it to stop smoking. If the exhaust valve is open at all after the engine shuts off, any oil in the cylinder will burn off and push white smoke out the exhaust, as well. Especially if it's some kind of hairline crack letting oil into the cylinder, which then closes back up as the engine cools.
Of those possibilities, aside from overfill or running the engine on a slope, the head gasket would be the easiest thing for you to fix yourself. You would need a torque wrench and specifications on the correct bolt tightening pattern and torque for the head bolts for your specific engine.
Or it could be something completely different.
Here's a potentially handy page from Briggs and Stratton, but it might be time to call a local small engine repair shop.
https://www.briggsandstratton.com/us/en/support/faqs/engine-emits-white-blue-smoke
We need to divide the problem in half. In the case of an engine we need to decide if it's not starting because of gas or spark. Too test the engine for spark your going to need an extra set of hands or some electrical tools. If you have help you can have some one hold the spark plug wire close to the spark plug while you pull the string. If electricity is getting to the spark plug you will see a spark jump from the wire too the sparkplug. IF you see a spark we can now trouble shoot the fuel.
The easiest way to check the fuel would be to buy a can of ether, that is what the guy in the video sprayed into the engine. If it runs for a couple seconds (or even acts like its about to start) then we know the problem is with the carburetor or fuel system in general.
If you complete these next steps please come back and +1 my answer(so I get a notification) and I will continue to assist you in trouble shooting. Regardless if it's spark on fuel the trouble shooting only get more and more complex from here. I would replace the spark plug and if that doesn't work I would look at calling Home Depot, they might even pick the lawn mover up for you. They are good people.
How to check for spark video https://www.youtube.com/watch?v=mUOmsGiirTU
Best Answer
Look for the "H" & "L" carb adjustment screws. Get a small screwdriver that will fit those screws. Crank it up, keep it running with the trigger. Adjust the "L" screw one way or the other, in quarter turn incriments, until it idles how you want. Keep track of the turns, in case that doesn't work.
Wind it up again, H screw may need a little tweak to get back up to the rpms you're looking for. Again, count your turns.
If that doesn't work, you may just have dryrotted gaslines, leaking too much air into the jets. $30 fix at most shops.