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Ok, so i'm mowing my lawn last week and i hit a big stick. Long story short, my neighbor had to tip the mower upside down to fix a problem with the blade. It was upside down for a few minutes, and when we turn it right-side-up, the oil and gas kinda poured out the top. So we start it back up, and it runs for about a minute, but spewing white smoke the whole time. Then it just stops running.

We checked the oil, and it was low, so we got more oil and added it. We also added more gas because it was low, and replaced the spark-plug since that was probably filled with oil or gas. But now, will plenty of oil and gas and a new spark plug, it still won't start.

It's been like 5 days, and we've tried starting it each day, and the first time you pull the cord it almost starts but doesn't. Then every pull after that it doesn't come close to starting. Then we try again the next day and the same thing happens.

Please help with any (useful) suggestions. Thanx.

2007-09-27 07:45:09 · 8 answers · asked by Anonymous in Home & Garden Garden & Landscape

8 answers

it could be possible that the oil and gas soaked the air filter and the problem with the engine is that it can't breath. Try starting the engine with the air filter removed.

If the crankshaft was bent would the mower turn over?

2007-09-27 07:53:24 · answer #1 · answered by andrewelliottjobs 2 · 2 0

Take out the air filter and replace it or clean it. While it is out, put a couple drops of gas directly into the carburetor opening, replace the filter and close up the air cleaner. Start it up. If it keeps running, let it run for at least five minutes on full throttle. Don't worry about any smoke that might come out.
If it starts and then stops, take it to a qualified mechanic for a carburetor cleaning, there is oil in the carb passages and it can only be properly removed by disassembling and cleaning the carb. Do not spray WD40 into the carb as has been suggested. And never turn the mower upside down.

2007-09-27 16:46:07 · answer #2 · answered by ? 3 · 0 0

If you have all the oil cleaned out of the airfilter you may want to check the key in the flywheel. There is a soft metal key between the flywheel and crankshaft. When you hit something that stops or tries to stop the blade this key will shear to protect the engine. It releases the flywheel to reduce the weight/momentum. Remove the cowling, and the nut that holds the flywheel. You should be able to see the slot in the flywheel and crankshaft, they should be aligned with a key in the slot. Even a little bit off will effect the timing and it probably won't run. If not, remove the flywheel and replace the key. You may need to use a puller to get the flywheel off. And as mentioned before, turning a gas engine upside down is not a good plan. It is ok to tip it airbox up but not upside down.

2007-09-27 20:52:47 · answer #3 · answered by renpen 7 · 0 0

Changing the spark plug was a good idea, but my guess is that your new plug was again fouled/wet. Try getting some starting fluid, spray it directly into the carburetor with the air filter off and pull it over quickly-no choke on. If it starts let it run for over 5 minutes to burn the crap/carbon of the plug insulator. If this works, you will either clean the plug or replace the it with another new one. By the way, the only way to clean them well is with a spark plug cleaner/mini sand blaster.

2007-09-27 14:54:53 · answer #4 · answered by Robert D 4 · 2 0

Its a goner...........you bent the " crankshaft " of the motor when you hit the stick. How much is a new mower vs repair is the question here. If the impact was great enough to bend the blade then it was great enough to disrupt the fine balance of the crank assm. The white smoke was the tell tale sign.

2007-09-27 14:52:41 · answer #5 · answered by Anonymous · 0 0

Try spraying a little WD-40 in the carburator.

2007-09-27 14:54:38 · answer #6 · answered by Max 6 · 0 0

clean the carbeurator out

2007-09-27 15:08:32 · answer #7 · answered by Seargent Gork 3 · 1 0

Rent a horse?

2007-09-27 14:48:59 · answer #8 · answered by STEVE 2 · 0 1

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