i put the lawmower away last fall and left the gas in the tank and now when a prime it.It starts for a few seconds than stalls.
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10 Responses to “doe’s any one no way a lawnmower doesn’t start after leaving gas in all winter and how to repair it?”
You should probably dump out the old gas and put some fresh gas in. You might also want to change the oil and maybe the sparkplug as well. That should probably do it, unless your problems are more severe.
You may want to check the carburetor if nothing else works, they sometimes get gummed up from having the gas sit in there all winter long. Try cleaning it out if you need to.
You may need to rebuild the carberator. After sitting with gas in it, the insides of the Carb tend to break down and evenentually clog or restrict the pathway to the engine. It’s an easy cheap repair.
bmwdriver could be exactly right about your problem. I’d just emphasize that you MUST drain the old gas completely, before your mower would work again. Meanwhile, you could try using those quick-start solution/spray to help clear your mower of the old gas. I heard that leaving gas in a mower is not very good for the engine. The gasoline deteriorates and it has happened to me a couple of times. Hopefully your problem is just because of that old gas in your mower. Good luck.
leaving gas in your tank will cause it to leave varnish and shellac in the carb. that is bad. if it doesn’t start with fresh gas, take off the air filter and spray the carb inlet with carb cleaner. you can buy it at walmart.
You should do four things:
1) Drain all the old gas out of the tank.
2) Buy a spray can of starter fluid used in automobiles, unscrew the spark plug and spray some in the cavity.
3) Reinstall the spark plug, prime the engine and start the motor.
4) Let the engine idle for a minute to get the good gas flowing. Then off you go. Good luck.
Old gas turns thick and smells like varnish. take off the tank and dump it out. Rinse it with good gas to be sure it is clean. Then you have to pull the bowl on the carb and take a compressor and blow it out good and rinse with good gas. After doing this and putting everything back together you should change the plug just for fun (actually because you want a good fire to help clean any reminders out). and if that is the problem you should be good to go.
if you are going to store equipment with gas in it you should use a gas additive that will keep it from turning to varnish or collecting water,, however,, I do not think your problem is with this,,,REPLACE the carbs diaphram!!! these will stiffen up when not used so they don’t allow the proper pumping of gas!!! they are cheap and easy to replace, i bet ya that is your problem!!!!
If this is a float type carb, it has no diapragm… if you used fuel stabilizer… which everyone forgot to ask, then you more then likely don’t have a gummed up carb… if you didn’t, then you do, atleast at the most it is varnished… taking the air filter off and blowing it out won’t do squat, take the carb off and apart and blow it out with carb cleaner through any and all holes you see really good. Now if you used fuel stabilizer…. you probablly have water or trash in the gas, drain the tank, and take the bowl off the carb (if its a float type carb, if its a diapragm style, it’ll more then likely have the carb and tank screwed together) and let that drain out and if you have some trash in it, it’ll more then likely be the main jet is clogged, spray up that hole the fuel bowl nut came out off with carb cleaner really good. If its a diapragm style carb (tank and carb bolted together) the pickup tube/s may be clogged, the carb and tank assembly must come off, the carb off and the tube/s cleaned at the end (has a mesh screen there) and swish the trash out of the tank with the little gas thats in there. Go ahead and replace the diapragm and gasket while your there, they are only a couple bucks.
March 28th, 2009 at 5:52 pm
You should probably dump out the old gas and put some fresh gas in. You might also want to change the oil and maybe the sparkplug as well. That should probably do it, unless your problems are more severe.
April 1st, 2009 at 2:37 am
You may want to check the carburetor if nothing else works, they sometimes get gummed up from having the gas sit in there all winter long. Try cleaning it out if you need to.
April 3rd, 2009 at 4:51 pm
You may need to rebuild the carberator. After sitting with gas in it, the insides of the Carb tend to break down and evenentually clog or restrict the pathway to the engine. It’s an easy cheap repair.
April 6th, 2009 at 7:33 pm
bmwdriver could be exactly right about your problem. I’d just emphasize that you MUST drain the old gas completely, before your mower would work again. Meanwhile, you could try using those quick-start solution/spray to help clear your mower of the old gas. I heard that leaving gas in a mower is not very good for the engine. The gasoline deteriorates and it has happened to me a couple of times. Hopefully your problem is just because of that old gas in your mower. Good luck.
April 8th, 2009 at 12:47 am
leaving gas in your tank will cause it to leave varnish and shellac in the carb. that is bad. if it doesn’t start with fresh gas, take off the air filter and spray the carb inlet with carb cleaner. you can buy it at walmart.
April 9th, 2009 at 8:15 pm
You should do four things:
1) Drain all the old gas out of the tank.
2) Buy a spray can of starter fluid used in automobiles, unscrew the spark plug and spray some in the cavity.
3) Reinstall the spark plug, prime the engine and start the motor.
4) Let the engine idle for a minute to get the good gas flowing. Then off you go. Good luck.
April 10th, 2009 at 7:52 am
Old gas turns thick and smells like varnish. take off the tank and dump it out. Rinse it with good gas to be sure it is clean. Then you have to pull the bowl on the carb and take a compressor and blow it out good and rinse with good gas. After doing this and putting everything back together you should change the plug just for fun (actually because you want a good fire to help clean any reminders out). and if that is the problem you should be good to go.
April 13th, 2009 at 3:11 am
if you are going to store equipment with gas in it you should use a gas additive that will keep it from turning to varnish or collecting water,, however,, I do not think your problem is with this,,,REPLACE the carbs diaphram!!! these will stiffen up when not used so they don’t allow the proper pumping of gas!!! they are cheap and easy to replace, i bet ya that is your problem!!!!
April 16th, 2009 at 10:18 am
If this is a float type carb, it has no diapragm… if you used fuel stabilizer… which everyone forgot to ask, then you more then likely don’t have a gummed up carb… if you didn’t, then you do, atleast at the most it is varnished… taking the air filter off and blowing it out won’t do squat, take the carb off and apart and blow it out with carb cleaner through any and all holes you see really good. Now if you used fuel stabilizer…. you probablly have water or trash in the gas, drain the tank, and take the bowl off the carb (if its a float type carb, if its a diapragm style, it’ll more then likely have the carb and tank screwed together) and let that drain out and if you have some trash in it, it’ll more then likely be the main jet is clogged, spray up that hole the fuel bowl nut came out off with carb cleaner really good. If its a diapragm style carb (tank and carb bolted together) the pickup tube/s may be clogged, the carb and tank assembly must come off, the carb off and the tube/s cleaned at the end (has a mesh screen there) and swish the trash out of the tank with the little gas thats in there. Go ahead and replace the diapragm and gasket while your there, they are only a couple bucks.
April 18th, 2009 at 3:46 am
Pour in a small amount of gas additive, and add fresh gas.