HOW TO FIX A BRIGGS AND STRATTON ENGINE THAT WONT PRIME




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wcjcnc: Hey, love all your vids. I was wondering if you could help me. I have a mower like the one in this vid. It has a OHV engine. I've done EVERYTHING I can think of to fix this problem but it's still doing it. Here's what it's doing. I push the primer bulb a few times. Pull the rope. Then it sputters for 5 or 6 seconds before it takes off and runs like it should. What would cause a mower to sputter really slowly for 5 or 6 seconds before it runs right? Thanks for ANY help at all.

oldvolkz: i replaced my gasket but it still wont prime?

ncrdisabled Submarine vet: I have a problem that I need yor help I have a 1972 ariens tiller 5hp that had a weak spark . I am a disabled vet so its a little had to understand some things . I tested the spark very week . I opened it up expecting points but the was the magnatron with some kind of conversion board to replace the points I do not know what to do at this point. I can not find the electronic board any where. What do you think?

aecom1: I have a Poulan Pro 625 series briggs and stratton walk-mower. The problem that i have is that ,it won't start at all. I can see...when I open the gas cap and prime ...the bubbles coming up in the gas as i prime. I can also see ,bubbles coming up when the air filter is removed and I'm priming ...from the back of the base-air plate connected to the carburetor.On the base-air plate it has a groove coming from the primer,and the gasket is old. Could this cause a no start?

nick l: Is it possible to bypass the primer bulb.

JEREMY FOUNTAIN: Only way fuel can enter the crankcase on that engine is due to bad needle and seat inside the carburetor or the fuel pump diaphragm is bad causing fuel to be sucked into the crankcase via the pulse hose. the only other way would be sabotage

JEREMY FOUNTAIN: Needle and seat in the Carb is jacked up

Razorron90: Lol. I just bought a Briggs 625 and it would prime at first and crank and run then go dead after about 15 seconds and it did this about 3 times. So my first thought was it wasn't getting enough fuel to the engine. So I checked all the gas lines and cleaned the carb. But before I did all that the primer won't put out any gas so I resorted to google and this popped up. Thanks for the vid. I knew it had to be something simple.

DH Meyers: I got a good one for you. Briggs 8 hp log splitter with extensive overhaul to pull starter, carb rebuild, replaced fuel pump, HOWEVER every time I fill the fuel tank, the engine will start but suddenly fuel and oil shoot out of the crankcase vent that attaches to the air cleaner assembly. The fresh oil is completely diluted with fuel and I can't figure out how this could occur. Float and feeder pin at venturi is clear but no fuel seems to be reaching the float bowl. Would appreciate help.

ncrdisabled Submarine vet: these are the numbers 100292 0154-02 74050807 any help you can be will help

DH Meyers: Your last word was the case for me. The fuel pump was incorrectly hooked up to the fuel in, fuel out and vacuum lines causing the fuel to exit through the breather tube. Replaced breather and fuel pump. Additionally the uptake tube that feeds the venturi was totally clogged preventing proper fuel flow through the float bowl at all. How it ran in its previous condition is a mystery. Thanks for the help.

belue7: definately got me scratching my head. lol

JEREMY FOUNTAIN: i would do away with the board and install a new electronic ignition coil part number 397358

rtzapper: great idea i never thought to double up the gaskets

grease82monkey: Nice

belue7: No i checked it also got a clean view through. Bulb was ordered from B&S and is correct primer bulb for that model also.

bondscalper: Dude you just saved me a pile of money !!!!! I bought the carb kit and replaced the gasket, but no prime !!! The i saw you video and put the old gasket ontop of the new one and BAMMM The carb primes like new. Thanks your the best

belue7: awesome tip, i have the exact issue with a mower i am working on! Thank you, exactly why i subscribed to your channel!!

JEREMY FOUNTAIN: need model type and code off your engine

nick l: how?? Please

Maddog61able: I have a Briggs 15.5 and gas is in the oil system what is the problem. Greg

grease82monkey: U need to put a Facebook link under description

JEREMY FOUNTAIN: Primer passage clogged in carb?

belue7: i did what you suggested and it still does not prime? I also switched the whole unit out and tried again and it wont prime. Any suggestions? i appreciate any other ideas you might have. New primer bulb also added.

JEREMY FOUNTAIN: yes

aniorange: A very good and simple tip. I will have to remember that.

FenderGibsonWashburn: This is exactly what's wrong with mine. Thank you
Rating:
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HOW TO FIX A BRIGGS AND STRATTON ENGINE THAT WONT PRIME