Best Answer

Check fuel filter or sticking float: replace filter clean carb.

hope this helps

User Avatar

Wiki User

โˆ™ 2012-04-29 15:10:18
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: Why does a Briggs and stratton 12.5 HP lawn mower engine stop 2 3 seconds after it starts?
Write your answer...
Still have questions?
magnify glass
Related questions

Why does a Briggs and Stratton 6.75 hp lawn mower engine stop after 2-3 seconds after it starts?

if it starts and runs for just a few seconds then dies it is generally a carburetor issue. clean or replace the carb and that should solve your issue.

Why does a Briggs and Stratton 4.75 HP Murray pro series lawn mower engine stop 2-3 seconds after it starts unless you continue to prime it?

The fuel filter is clogged and restricting the flow of fuel to the carburetor.

Why does a Briggs and stratton 6.5 hp lawn mower engine die 2-3 seconds after it starts unless you continue to prime it?

the bolt in bottom center of carburetor bowl has holes in it that are stopped up like mine was.

Your Briggs and stratton lawnmower starts but then cuts out after about 30 secs What is wrong with it?

The fuel filter is probably clogged and restricting the fuel flow. If the engine blows black smoke before it cuts out, then the engine is flooding - look for a dirty air filter or a fouled spark plug.

Why does a Briggs Stratton 16.5 hp starts well but won't stop when I turn the key off I have to use the choke to stall It?

The kill-switdh wire is disconnected. loose. or broken. The kill-switch wire starts from the OFF position of the ignition switch and meets another wire that leads to GOUND to stop the engine.

Why Briggs and Stratton 6.5 hp starts but cuts off?

Three things you want to look for: dirty/clogged ful filter; faulty spark plug; carburetor setting.

Why does a Briggs and Stratton 4.5 HP lawn mower engine stop 2 3 seconds after it starts unless you continue to prime it?

it is losing its prime... i have the same problem right now and i have cleaned the carburetor, changed the gas and spark plug and changed the air filter. The only thing that i can think of is that there is something wrong with the priming bulb or the gas cap is hindering the air flow... still trying to repair....

Has spark and cranks will not start It is a craftsman 8.5 horsepower Briggs and stratton engine the flywheel key is not broken?

Put gas in the carb. then try and start it if it starts you should check your fule lines and carb. If it does not start.Try a compresion test.If it reads 0 you may have a bent valve or rings might be bad.

On 17hp Briggs and Stratton the engine will barely turn over with the spark plug installed but will turn over easy with the plug out It will run once it starts?

If the engine turns over freely with the sark plug out, then check for loose,rusty,or corroded connections from the headlights back too the battery.Even the ground wires throughout. recheck with a fully charged battery (12.6 v)

Could the distributor be the problem when the engine quits runnig every 15 seconds on a 3o2 efi engine?

If you are saying the engine starts and runs for 15 seconds and dies and then starts again for another 15 seconds and dies . . . the distributor seems to be doing its job. You might want to check if there is a fuel restriction somewhere (filter or pump).

Briggs and stratton outboard motor owners manual?

won't stay running starts and goes then stalls Sounds like might be a float ,fuel filter or maybe just needs a good cleaning. Hope this helps.

Engine starts and runs for a few seconds and then stops this keeps happening and engine won't keep running What is wrong?

Fuel pump

People also asked