How can I find the proper settings for the carburetor? I rebuilt it and need a starting point to go from. I forgot where the settings were! Please give suggestions for a Tecumseh CA-632176 . It is on a older Craftsman Tiller # 917.299369 serial # 0710w22284
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One of the most common problems with power generators is:
Not having been run often enough.
When that happens ( I have 2), the gasoline will evaporate or thicken and turn gummy, and will clog the carburetor.
Then, the carburetor must be rebuilt, (often it has to be taken off the machine) before it will run properly again.
To prevent this, you must start and run the generator once every two or three months for about 10 minutes.
God bless your efforts.
Assuming your question is, "How do I set it up to idle properly?" Just rebuilding the carburetor isn't enough to get your bike to idle properly. If it idles high, there is either too much air or too much fuel going through the carbs. Were the jet needles replaced at a level appropriate to the air intake? If you also replaced the air intake, i.e., replaced the air box with pods, you will need to reset the jets at a different height. (More air needs needles set to let more fuel pass.) Hope that helps.
Kescorpio56: Check your throttle and choke settings. Something is causing the throttle plate in the carburetor to remain open or the governor is improperly set. I would reset the air/fuel mixture screws to one and a quarter turns out and back the idle screw all the way out. Make sure that the throttle cable operates the throttle properly and check the governor setting and reset the governor setting if needed. Start the engine and adjust from there. When the engine starts, adjust the idle screw until the engine idles. Adjust the fuel/air mixture screws for the best idle. Then run the RPM up and adjust the fuel/air mixture screws for the best run/idle combination. Don't forget to adjust the governor if the engine runs too fast or too slowly.
Soft seat the set screw and back out 1 1/2 turns. This is the standard to start adjustments from. Set the low speed one first, then the high. With it running and warm, couple of minutes, turn in until starts to run rough, then turn out til is starts to run rough, then set in the middle of those two points. Go to the other and repeat procedure.
The carburetor is exhibiting symptoms of flooding. Many different things can cause it, from a bad vent in the gas cap on the machine to bad seats on the L and H mixture screws of the carburetor. I suggest you remove the carburetor and clean it, (use NO harsh chemicals) and have it rebuilt. If it sat over the winter with old fuel in it, the diaphragms inside it are probably ruined. There are NEW ones in a rebuild kit.
This time of year, the ethanol in the fuel and winter set-up take their toll. Try this to entice it to run. Get an aerosol can of carburetor/choke cleaner spray at the auto parts store. Remove the air filter. Open the choke on the carburetor. Open the throttle all the way on the carburetor. Spray a couple of shots of the cleaner in through the carburetor throat. Immediately try to start the machine with it cold-choked the conventional manner with air cleaner still off. If it "pops" or acts like it wants to start, repeat the above procedure. If it fails to start, pull the spark plug and check for flooding and/or fouling of the plug. Clean and replace and repeat procedure. If it doesn't attempt to start, you will probably have to remove and service the carburetor, A good cleaning and/or gasket with diaphragms rebuild kit may need to be installed. These carbs have to be rebuilt with these fuel sensitive parts periodically anyway. Post back if needed. We are here to help.
Before adjusting anything, check the condition of factors that pertain to the proper running as: fresh fuel mix, plugged fuel filter, air cleaner, and muffler. Poor fuel lines, and loose carburetor fasteners. Remove the spark plug, and place it on engine metal (wire attached). Pull the engine through smartly--the spark should be blue and snappy. Plug gap should be ~0.020" and the insulator should be light to medium tan in color. Try a new plug if in doubt. When these things appear to be correct, turn both jet screws CW to stops (lightly), and then CCW each back out 1-1/2 turns. It should start and run fairly well at this point. Allow the engine to warm up, pull the throttle full on. The engine should be 4-stroking--turn H needle CW until the engine starts to speed up, but still 4-strokes. Proper adjustment is when the engine 4-strokes, but immediately 2-strokes when cutting. Allow to idle and adjust L CW until the engine runs fairly smoothly, yet allows the engine to 'follow the throttle'. Set the idle speed screw so that the chain doesn't turn, but the engine doesn't stall out. If you can't get the above to work, you may need to clean and re-kit the carburetor first. Hope this helps!