ok, so i go out side this evening to cut the grass, i have a Toro Recycler self propelled with a Briggs & Stratton 190cc engine. I started the mower and as soon as i did i noticed white smoke coming out of the front exhaust, thought nothing of it, then within 15 seconds and about 20 feet of cutting i was engulfed with a lot of white smoke, so i stopped the mower and noticed oil on the top of the cutting deck just below the exhaust. So i stopped and put it up for the night to come in and research what is going on. Any ideas out there? Thanks
Join the crowd of those who mower has become a mosquito fogger. Lucky the repair is pretty easy. What has happened is the float needle is no longer shutting off the fuel in the float bowl. Pull the dipstick and I'll bet you'll find it over filled, where the gas has mixed with the oil. What is the fix? Remove the carb and clean and rebuilb it, you will have to go to your local shop and get part number 389188. Drain all the oil from the engine and put in fresh. Install rebuilt carb and you should be set to go. A new plug may also be needed. When you start it up , do so outside, as you will have residual oil to burn off. Here is the procedure I recommend you follow, not very hard, just take your time.
Needle and seat replacement
Remove the carb, and then remove the float bowl. Check the float bowl jet (which is the bowl screw) and make sure the jets both horizontal and vertical are clean and open. Tip the carb upside down and remove the float pin and float with needle attached. Look in the float needle passage and you should see the red float seat at the bottom of the passage. This is where a #5 crotchet hook would come in handy as you need to remove this seat. If you have no hook, but compressed air, you can blow through the fuel inlet and try to pop the seat out. Put your thumb over the passage to prevent the seat from flying who knows where. No air or hook try bending a stiff paper clip to dig the seat out.
I would either give the carb a good 24 hour soaking or have it ultrasonically cleaned at this time.
With the seat out clean the passage way with carb cleaner. Now you must find a drill bit slightly smaller than the passage way, to be used to press in the new seat. Apply a very, very small amount of a very light lube to the new seat. 3-1 oil or lighter, to help seat it better. Carefully insert the new seat in the passage way with the rings on the seat down toward the carb body. Slowly and carefully force the seat down with the back end of the drill bit. Once it is seated, check to see that it did not flip and the rings are up. *Next check to make sure that the float does not have any liquid in it. *If it does, replace. *If everything looks correct, attach the new needle to the float and install with the float pin centered. It everything is correct, the float should seat level to the carb body, when looking at it upside down. If everything looks good reattach the float bowl, making sure that both the bowl gasket and the nut gasket seal properly. Reinstall on the engine and test unit. Remember to have patience and take your time. Good luck, but I don't think you'll need it.
PS: *On the side of some Tecumseh carbs you will find a plastic cover. *Under this cover will be an idle jet. *Remove it and check to see that the jet is open both horizontally and vertically. *You should be able to push the old float needle wire through the vertical opening.
Rivets - you are the MAN....i don't care what you wife says about you LOL....i went today and bought a new carburetor ($42) instead of the rebuild kit ($15) due to my lack of mechanic ability. Got home drained and changed the oil, changed the spark plug, installed the new air-filter, and new carburetor and the lawn mower fire right up and ran great. I really do thank you for taking the time to respond back to my post.
