craftsman lt2000 runs for 10sec shuts off, spitting oil, white smoke


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Old 04-12-20, 08:28 AM
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craftsman lt2000 runs for 10sec shuts off, spitting oil, white smoke

I changed spark plug, changed fuel filter, jumped battery, changed air filter, carburator, tried to adjust carb, running out of ideas. Mower is no longer leaking fuel. Engine is hard to start 30+ tries. Runs at idle for 10 seconds with white smoke then shuts off
 
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Old 04-12-20, 08:50 AM
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Check the oil level and did you change oil after the gas leakage? It sounds like you may have oil in the upper cylinder.
 
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Old 04-12-20, 08:59 AM
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I did not change the oil. I forgot to mention I also had gas pouring out of the spark plug hole when I replaced the spark plug. Should I change oil next? Thanks for the reply and suggestion!
 
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Old 04-12-20, 09:33 AM
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Definitely change the oil, but take the plug out, isolate the wire so you don't get a spark, then purge the gas out of the upper cylinder through the plug hole. Also change the oil. When you have all the plugs out, spin it over a few times to vent out the vapors.

Then put it all back together. It will likely smoke a little until the residue is burned out.
 
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Old 04-12-20, 09:41 AM
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When you say "plugs" do you mean both the spark plug and oil drain plug? What am I spinning? How do I spin it if no spark plug?
 
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Old 04-12-20, 09:51 AM
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Take out the spark plug, the oil drain plug, and the fill plug. Spin the engine over with the starter or pull rope, whichever you use to start it. You need to vent the gas vapors from the engine crankcase and the upper cylinder as well.

Then put oil back in it and try to start it. Usually for something like that just use no choke and full throttle to start the first time.
 
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Old 04-12-20, 10:17 AM
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I'll have to research the fill plug. Is that where the fuel line goes into the carburator? This is a riding mower so it has a key for a starter. I'll get the oil today. Thanks!
 
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Old 04-12-20, 10:28 AM
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Is that where the fuel line goes into the carburator
No, the fill is where you put the oil in the engine. It may just be the dip stick hole for checking the oil)
 
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Old 04-13-20, 03:43 AM
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Your carburetor is leaking. Fix the leak, drain the overfull gassy oil, and refill with new oil and you'll be back in business. Easy fix.
 
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Old 04-17-20, 07:46 PM
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I did as you said and got it running. It's blowing white smoke like crazy. I don't know how much smoke is too much but it covered half an acre before i shut it off. I wonder if im running to rich now or if it will just burn off the residue
 
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Old 04-17-20, 07:49 PM
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I replaced the carburetor and changed oil now it's smoking like a chimney. Actually worse. Progress none the less thank you.
 
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Old 04-17-20, 08:12 PM
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If the oil level is good let it run until the white smoke ends. But make sure you keep a check on the oil.
 
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Old 04-17-20, 09:04 PM
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You will be smoking for a while. It's ok, run it a few minutes. The oil and gas mixture is in the muffler and it will take a while to burn it all off.
 
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Old 04-18-20, 03:34 PM
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Mower ran for 10 minutes, cut grass, worked flawlessly. Then it sputtered and died. I tried to start it back up and it backfired. Pushed it back to the garage in neutral. Carb adjustment time? Also the fuel line is probably too long. Not sure if that makes a difference. Battery is also dead. Bought a charger but it was DOA. Done with my whining and ready for any and all recommendations.
 
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Old 04-19-20, 02:37 AM
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If the battery is dead and shorted, it may be keeping the fuel solenoid from staying open. Try a new battery first.
 
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Old 05-02-20, 10:36 AM
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Down again

Put in a new battery , installed new manual fuel shut off valve. Tried to adjust the carbs myself. Changed oil and spark plugs again. Lawn mower cut half the yard then shut off. Got it back up and running albeit Shakey. Tried to engage the blade and nothing happened. Running out of ideas. Any help is appreciated.
 
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Old 05-02-20, 11:25 AM
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Bounce up and down a few times on your seat. The switch there may be acting up.

(Do that where the neighbors can't see you)
 
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Old 05-02-20, 12:38 PM
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Switch

The seat switch makes sense. Should I just replace that switch? Thanks again for the help!
 
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Old 05-02-20, 01:51 PM
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I got tired of mower shutting off every time I got off. Took switch out and taped switch closed. Always thinks I am in seat. This should work on a intermittent switch. This will tell you if that is the problem.
 
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Old 05-02-20, 02:23 PM
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Switch

The seat switch makes sense. Should I just replace that switch? Thanks again for the help!
 
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Old 05-03-20, 09:29 AM
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I would check it first as pugsl mentioned. As a rule just replace stuff after a little diagnosis rather than throwing parts at it (that gets expensive).
 
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Old 05-03-20, 08:08 PM
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If it was the seat switch, the engine would have shut off as soon as you lift of the clutch pedal or lift the blade engagement handle. What is the mower doing now?
 
 

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