briggs will not stay running

simpleman03 · 10-08-2009, 01:35 PM

Have a 6.25 briggs and stratton craftsman lawn mower that starts and runs great. It stays running for about 5 minutes then quits. Will not restart till later on or the next day. Have changed the spark plug, cleaned out gas tank, changed air filter, and checked carb. Please help.

**Snoopdogie187** · 10-08-2009, 07:02 PM

Please post a model number and anything else to help us identfy what you have. The number off the engine should be enough. For briggs its usually stamped on the outside of the engine somewhere. Just look around an you will find it.
Sorry without knowing more we don't know what the engine uses.

As a start, I would check if it has spark when it won't run.

simpleman03 · 10-09-2009, 07:41 AM

the lawn mower mod# is 917.379071

also on side of motor is:
Family YBSXS.1901VC

Vatar · 10-11-2009, 08:57 PM

Is all the blower tin on the motor and free from obstructions? You could have an overheating problem and be seizing your motor. Will she still crank over after she quits running?

**K-B** · 10-15-2009, 05:59 PM

Run it until it shuts off, then immediately remove the spark plug (watch out, it'll be hot) and test for spark. If spark is present, let it set for a while, then restart it, but this time remove the gas cap and see if it continues running. If it does, replace the gas cap.

outhouse · 10-28-2009, 03:43 PM

It sounds like a resriction to fuel flow to me. Check for grass of other contaminates in the fuel tank. When the motor is cold remove the fuel line and see how much fuel flows ot the tube, should be a good flow.

**Snoopdogie187** · 10-29-2009, 02:55 PM

To add to outhouse, also check the flue filter. Also, if it is a gravity feed system (no fuel pump, sorry I don't know if it is or not), you have to watch which fuel filter you put on. Some filters are too strong and will prevent the gas from moving as fast as it should be.

10-08-2009, 01:35 PM	#1 (permalink)
simpleman03 Registered User Join Date: Oct 2009 Posts: 2 OS: win xp	briggs will not stay running Have a 6.25 briggs and stratton craftsman lawn mower that starts and runs great. It stays running for about 5 minutes then quits. Will not restart till later on or the next day. Have changed the spark plug, cleaned out gas tank, changed air filter, and checked carb. Please help.

10-08-2009, 07:02 PM	#2 (permalink)
Snoopdogie187 Oh! What shall I be? Join Date: Jun 2002 Posts: 2,537 OS: Vista Home Premium SP1, mom: XP Pro SP2 My System	Re: briggs will not stay running Please post a model number and anything else to help us identfy what you have. The number off the engine should be enough. For briggs its usually stamped on the outside of the engine somewhere. Just look around an you will find it. Sorry without knowing more we don't know what the engine uses. As a start, I would check if it has spark when it won't run. __________________ Infected computer? click here Has TSF Helped You? Posting System Specifications Please Donate to TSF

10-09-2009, 07:41 AM	#3 (permalink)
simpleman03 Registered User Join Date: Oct 2009 Posts: 2 OS: win xp	Re: briggs will not stay running the lawn mower mod# is 917.379071 also on side of motor is: Family YBSXS.1901VC

10-11-2009, 08:57 PM	#4 (permalink)
Vatar Registered User Join Date: Oct 2009 Posts: 26 OS: 2000 Professional	Re: briggs will not stay running Is all the blower tin on the motor and free from obstructions? You could have an overheating problem and be seizing your motor. Will she still crank over after she quits running?

10-15-2009, 05:59 PM	#5 (permalink)
K-B Moderator, Linux Join Date: Oct 2005 Location: NY Posts: 2,873 OS: Vista, Ubuntu My System	Re: briggs will not stay running Run it until it shuts off, then immediately remove the spark plug (watch out, it'll be hot) and test for spark. If spark is present, let it set for a while, then restart it, but this time remove the gas cap and see if it continues running. If it does, replace the gas cap. __________________

10-28-2009, 03:43 PM	#6 (permalink)
outhouse Registered User Join Date: Oct 2009 Posts: 2 OS: gos	Re: briggs will not stay running It sounds like a resriction to fuel flow to me. Check for grass of other contaminates in the fuel tank. When the motor is cold remove the fuel line and see how much fuel flows ot the tube, should be a good flow.

10-29-2009, 02:55 PM	#7 (permalink)
Snoopdogie187 Oh! What shall I be? Join Date: Jun 2002 Posts: 2,537 OS: Vista Home Premium SP1, mom: XP Pro SP2 My System	Re: briggs will not stay running To add to outhouse, also check the flue filter. Also, if it is a gravity feed system (no fuel pump, sorry I don't know if it is or not), you have to watch which fuel filter you put on. Some filters are too strong and will prevent the gas from moving as fast as it should be. __________________ Infected computer? click here Has TSF Helped You? Posting System Specifications Please Donate to TSF