Question about Craftsman 675 Torque 190cc 21" Briggs Stratton RearBag Push Lawn Mower (CA) ()

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My briggs and stratton 675 lawn mower won't start. It has no choke or primer.

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  • Alex Frohm May 25, 2013

    Good luck. I bought this mower to save money (rather than hiring someone to mow my lawn). Bad idea. I've had to have it serviced after every other mowing, and I have 1/8 acre. The Sears sales clerk at the store where I bought it claims that I simply did not put in the proper maintenance... well, after having it tuned up, new oil filter, spark plug carb cleaned AND using special, expensive no-ethanol gas, it was good for one mowing. Well covered with water-proof tarp, it still apparently drew in moisture enough so that it barely starts. Moisture may be it, but who knows. This piece of metal is so high-maintenance, it could be anything.

  • Steve Hollingworth Mar 13, 2017

    The tarp will keep the water off the machine but not out of it. A little water in the fuel can cause major problems as you well know. Kelly's answer below will help you fix it but to keep it running through the year and to stabilize the gas during the winter, try adding SeaFoam (you can find it at Walmart or any auto parts store) to your gas in the recommended ratio. It will do wonders for you machine helping to keep the engine and fuel lines clean during the summer and helping to prevent your gas from turning into varnish during the winter. Also check out this article on winterizing a lawn mower.https://www.familyhandyman.com/automotiv...

  • Jerry Johnston
    Jerry Johnston Nov 13, 2018

    One thing that is common with this machine is the kill switch mechanism. I t has to come completely off when you pull the handle back to set it. Some of the time it will slip and, the kill switch will remain engaged. A simple alignment of the cable will fix it till it slips again. Then it won't start. You can change the cable and it may fix it but, if that kill switch does not disengage it is simply out of alignment. It is not being pulled far enough to disengage the kill system.

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I am guessing that this is your ENGINE model number: 126K02-0512-B1
Using this reference:
http://www.partstree.com/parts/?lc=briggs_and_stratton&mn=126K02-0512-B1&dn=35820003
Check to make sure that the choke item number 97 is not sticking.
Then remove the float bowl nut and float bowl assy. Clean the fuel passages in the base of the carb with carb cleaner including the area where the bowl nut screws into. There is a fixed jet orifice that must be cleaned in the threaded area. Also clean the visible brass tubes in the top of the carb.
Check fuel flow with the bowl removed. You should have a good fuel flow with the float angled down and as you lift it level fuel flow should STOP. If you do not have fuel flow... remove the float pin, drop the float and needle and celan out the hole where the float needle was. Remove the main fuel line and check for fuel flow. Use carb cleaner in the hole where the fuel line connects. If you do not have feul flow from the fuel tank.. check the tank port and look for any kind of in line filter. If you find a filter... check the line before and after the filter for fuel flow. Once you have established fuel flow Reassemble carb

Check the spark.... if you have no spark
First check the thermostat by just disconnecting it. Item 291
http://www.partstree.com/parts/?lc=briggs_and_stratton&mn=126K02-0512-B1&dn=35820004
Then retest your spark. If you have spark with the thermostat disconnected the themostat is bad. (Most engines use a low oil level sensor..... this one uses the thermostat)
There is an electrical contact on the throttle plate that is grounded when the throttle is selected to off. Make sure the throttle plate lever moves off of the contact when you advance the throttle. ALSO... there is another ground / contact on the engine brake. Make sure that when the engine brake is released that the brake lever moves away from the ignition grounding contact.

The above are the basics.... If after doing ALL of the above you still have problems with ignition then suspect the ignition components.

Thanks for choosing FixYa,
Kelly

Posted on Apr 27, 2011

  • Amy Shaffer
    Amy Shaffer Jun 19, 2014

    mom of 3, never worked on a mower or any other small engines. my mower now works thanks to the instructions here. thanks alot!

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BAD GAS OR CARB. NEEDS CLEANING......SPRAY SOME STARTER FLUID DIRECTLY INTO CARB. (TAKE THE AIR FILTER OFF FIRST) IF IT CRANKS, AND GOES DEAD, THEN ITS BAD GAS OR DIRTY CARB....DUMP GAS OUT OF TANK,GAS LINE AND BOWL, NEW GAS AND TRY IT(MIGHT NEED TO SPRAY IT A FEW TIMES TO GET IT GOING....IF IT STILL KEEPS GOING DEAD....THEN REMOVE CARB. AND CLEAN IT......

Posted on Apr 27, 2015

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Related Questions:

1 Answer

As far as I know there is no primer or choke on the 675 lawn mower engine. How do you start motor without pulling plug and shooting gas in spark plug hole?


Some mowers have a type of auto choke on them. Some Briggs and Stratton choke themselves when the engine speed is slow, and un-choke when the engine reaches full rpm.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0

Jun 29, 2016 | Garden

1 Answer

Do they all have primer buttons? mine is a 675, can't find it.


it depends on how new or old it is . new does old do not but usually have a choke lever

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How would I adjust the choke on my Briggs & Stratton 675 Series? where could I find the repair manual to download free online


Their's a bowl under the carb.,probably dirty,to clean,crimp gas line,get wrench and remove screw at bottom of bowl,discard gas and wipe bowl out and put back on and tigthen screw then uncrimp gas line and start.Be careful and don't damage rubber gasket.

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B&S one start pull take numerous pull to start


If it is system I am thinking about it does have an automated choke system and that it is out of adjustment

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1 Answer

Will not prime with primer bulb , can squirt gas in carb and get running then while running you push the primer button it chokes down the engine .


Does it stay running after you squirt fuel in the carb opening? If yes, then there may be a pin hole leak in the hose going from the fuel tank to the primer bulb and it is adding air to your carb.
Thanks

May 01, 2015 | Craftsman 675 Torque 190cc 21" Briggs ...

1 Answer

Where is primer on craftsman platinum push mower


It may not have one. Some mowers auto choke using spring tension on the choke plate in the carb. They open the choke when the engine speeds up after starting.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0

Apr 23, 2014 | Craftsman 675 Series 190cc 22" Briggs ...

1 Answer

Where is the choke


Many Briggs engine have a primer rather than a choke, the 675 series has a choke that is worked by an air vain, the choke is always closed when the engine is stopped, once the engine starts air pressure from the flywheel pushes the air vain which in turn opens the choke to allow the engine to run normally, there is also a version with a bi thermal switch on the back of the muffler, as the muffler heats up the switch opens the choke.

Feb 12, 2013 | Craftsman 675 Series 190cc 22" Briggs ...

1 Answer

Craftsman Briggs and Stratton 675 series Mower fuse location


Is battery powered, did you try calling sears tech center for further info ?
i have found them to be very helpfull with mower problems.

Sep 12, 2012 | Craftsman 675 Series 190cc 22" Briggs ...

1 Answer

Engine starts sputters then shuts off


probably a dirty carb. or if this problem is occuring when the engine has been run and is hot and its the new style easy start engine with auto choke ( no primer or choke lever) then the auto choke unit coud be faulty

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