Where is the choke - Craftsman 675 Series 190cc 22" Briggs Stratton Rear Bag Front Propelled Lawn Mower ()

Might sound stupid but have you made sure that the cable is functioning properly? and that the choke is not stuck permenantly on.

Replace cable.

It depends on the vehicle. Some or all manufacturers have a specific procedure for testing the choke and all its linkages and controls. But just observing your choke in operation from a cold engine (choke butterfly valve barely open) to a warm engine (choke valve fully open) should give you a good idea of how well it works. The electric assist on chokes is mainly for opening the choke a biy sooner than the mechanical operation of heating the spring inside the black choke housing, causing it to expand and open the choke valve.

Sounds as if your choke is hanging up, or not opening at all. With the engine warm remove the air cleaner, there is a butterfly valve right inside the top of the carburetor If this is closed or mostly closed your choke needs to be adjusted. There are manual and electric chokes, yours should be an electric choke. First with engine cold and the key turned to on check for voltage at the choke wires. If you have voltage, then you might just need to adjust your choke. Electric chokes heat up an element inside the choke to tighten a spring and open the choke butterfly valve at the top of the carburetor. There should be between 4 and 5 screws that hold a ring around the choke housing on the side of the carburetor with the wires going to it. While holding the round choke housing in place loosen all of the screws on the retaining ring. If you can feel the choke housing wanting to spin turn it the opposite way that it wants to turn. Do this in stages until your choke butterfly valve is open with the key turned on, or the engine warm. Hope this helps if you have more questions just ask.

Without much other information of what has been done, I would start with the choke system. The choke cable may be detached or far out of adjustment. With a helper see if you can watch the choke cable move the choke lever on the carbs when you move the choke lever to full choke. Cables do break and or stretch. If that is the case then reconnect, replace, or adjust as necessary. If the choke lever and carb choke system is moving correctly then the problem may be in the carburators themselves.

Good Luck

Its just basically how the end of the choke cable is attaching to the choke plate. Change the approach angle of the cable onto the choke mechanism

http://www.bikebandit.com/houseofmotorcycles/2005-honda-motorcycle-vt750dca-shadow-spirit-carburetor-component-parts/o/m2904sch406961
Not to sure about this one, ok, if the choke wont stay out, then try to trace the choke cable to the carby, have a close look and see which parts move on the carby when you activate the choke, some thing just needs to be tightened up, so that the choke stays on. Also, you say the bike stalls and runs rough, is this with the choke on? If yes, then that is just a sign that you dont need so much choke on. Just try half choke. Do you live in a warm climate? if so, then you dont need much choke . So there is no adjustment really, only by the amount of choke you apply. Also remember, never use the choke if the engine is already warm. And, only use the choke for the first start of the day, when the engine is stone cold. The correct way to to start a cold bike engine is, pull the choke on fully, crank over engine, but DO NOT give it throttle, (this defeats the purpose of using the choke), when engine fires up and starts, slowly push the choke in till a smooth, high idle is acheived. You should be able to ride off slowly, and push the choke off after about a mile.

full choke when starting
3/4 choke upon engine firing
open choke within 2 minutes

The first thing i would look at here is the choke pull. Make sure that after the car starts, the choke props open. Also, as the engine warms, make sure the electric choke is opening up. If not, make sure you have 12V to the choke. If so, replace it. This should solve the problem.

But let me know if you need any further assistance, ok? We'll get it working! :)

Sounds like your flooding it out with the choke out. Try the next time you go to start the bike when it's cold with the choke out and when it starts push the choke all the way in and keep it running with the throtle. If it runs better after doing this then your flooding it on start up. Use 1/2 choke to start cold and see what it does. Good Luck