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White smoke means water so there is an internal water leak into your combustion chambers causing the smoke. Possible head gasket starting to leak.... Blue smoke is oil and black is gas as far as the smoke emitting from the exhaust. Have you needed to fill the radiator lately? Good luck.
Sounds like a bad turbo to me. When you "kick it in", the engine falters and you get black smoke for a while. What is probably happening is that the turbo is leaking oil into the intake air stream, putting it into the cylinders with the fuel/air mix and causing one of two issues. Either the oil is inhibiting the combustion process, causing the falter and the resulting poor ignition, plus the oil, is giving black smoke, OR, the oil in the cylinders is fouling the plug momentarily, resulting in the fuel/oil being passed into the exhaust stream, burned in the catalytic converter and exits as black smoke. If it runs OK except when under turbo load, have that thing checked out ASAP. And, as far as the light staying on, most faults will set permanently after they occur three or more times within a certain period of time. This is ti ensure that intermittent faults won't cause false setting of the light.
sounds like to much oil but you say the oil level is fine. you may want to check the compression on the head to see if the head gasket is blown. if there is a lot of smoke or oil blowing out the oil tube, that is a sign of blown head gasket.
Blowing a light colored smoke can be an indicator of burning oil. Have you checked your oil level? If it ran low it may be ceasing from heat and stalling. If it was running rich with too much fuel it should be dark colored smoke which can cause stalls. If your unit has a radiator a bad head gasket may let radiator fluid into the combustion resulting in white smoke. A little white smoke on start up can also just be moisture burning off in the exhaust but this should not cause stalling conditions, however if you're low on fuel that could contribute too. More details are important to narrow down your problem.
Hi:
My first thoughts are that you have a head gasket or intake manifold gasket failure. This is why you have the white smoke. If you run it too long, your catalytic converter will be destroyed. Check for coolant in your oil too.
Hi,
So now, without the blades engaged, it smokes and then dies?
In your first description it sounded like the engine was under a strain. Overfilling with oil could produce a strain, but since it ran ok until you said you engaged the blades, I would have to ask if the blades themselves, were causing the strain. Sometimes if you cut wet grass, the clippings stick to your underside of the deck and can really build up. Also some rope, wire or twine would around the spindles could creat one. Check this out...
Now, with the "smoke" issue (I'm assuming a blue smoke from burning oil) I'm inclined to think your rings aren't compressing any longer and you're burning oil. You might be in for a rebuild... I hope not.
Sounds like you have a blown valve. I'm assuming this is a 4 stroke motor, if it was 2 stroke then it would be the reed valves. But either way it's the valves.... unfortunately that will require a mechanic :(
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