20 Most Recent Craftsman 675 Torque 190cc 21" Briggs Stratton RearBag Push Lawn Mower (CA) () Questions & Answers

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

hi there. if you go to this link it might help you get it sorted. lawn mower cord won retract Craftsman self propelled lawn mower Honda...

http://www.mediafire.com/download/a48278m4v82dva3

probably a bent crank shaft or blade is out of balance

Check your fuel line you could have a crack in it causing a vacuum problem.

Bottom of engine on right side

I would take it back to the store and ask for warranty repairs since it is so new. That's ridiculous. If that doesn't work, try Sears Parts on-line or on the phone. They are better than most other manufactures.

vibration in a walk behind mower is most always a imbalance in the blade , there lots of things that cause this , from loose blade , to bent blades remove blade and test with blade balance , there not expensive ive seen them with a sharping stone for less than ten dollars before pull spark plug before you remove blade 4 safety

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

Sounds like the air/fuel mix is off.. there should be a adjustment screw on the side of the carburator use a screw driver and turn it slowly one way or the other till it starts running right

Drain all the gas out of your fuel tank via fuel line to carburetor. Then remove the bowl under your carburetor, place container under carb first. You will see that you have water in your gas. Just a little would keep your mower from starting and running. GOOD LUCK FRIEND.

when does it do it ??? Only when you are driving the mower ??? if its a rear drive mower I would suspect the axle/trans/drive wheels are making the noise.

what wrong with it if it wont start check for spark at plug if works try squrting starter flood into carb if tries to start rebuild carberator tecuseh engines are bad about clogged up carb with dirt

Spark plug?

Oil is entering the combustion chamber some how

How long since it ran last? Is it getting spark? Seem like it has good compression?

Hi there. It sounds like its getting to much fuel and flooding the carb.

Yoy can try tightening the blade bolt. i know it sounds funny but if the blade bolt is loose (or even alittle loose) the blade balance throws off the engine balance and can cause it to
1 not start
2 make loud clunking noises when trying to start
3 make a real racket if it does start

try flipping the lawn mower over and just tighten the bolt that holds the blade in place.
That should fix your problem.

Please dont forget to rate my answers
Thank you