Stay running Craftsman 29cc 4Cycle Straight Shaft Weedwacker Gas Trimmer wont stay running, changed gas, oil and plug

If you go to searsparts.com and put in your model number it will show you a drawing of your weed wacker. Not sure of what you are looking for. Hope this helps.

Check for spark if u have pour a small amount of gas in carb it should start also check air filter if runs then stops carb problem . Spray some carb cleaner then re try

Not sure what you mean but if you are saying the weedwacker head is not engaging it may be the cable that goes from the motor to the weedwacker head and runs down the inside of the shaft.

The carburetor needs to be adjusted very slightly, with a special tool. If still under warranty bring it to the Sears repair center quickly before you damage the engine.

remover the muffler and try it the screen inside might be plugged up

SAE 30 during the warm months, and 5w-30 during the cold months.

Jim

While Holding the Engine at Full Throttle, Adjust the High Air Mixture Screw In Until the Engine Revs Properly.

replace it with a new

Generally speaking, if there is a place on a gas-powered device that is labeled "gas" & a separate location labeled "oil" than you will need to use a 4-cycle oil for that machine. If there is just a place to put gas, you would use a 2-cycle oil; however, you would need to read the directions/manual to find out the correct proportion of oil to use, because you will have to MIX the appropriate amount of oil with the correct amount of gas, making a oil/gas solution that you would use for that specific device.

Don't fret for now. Did you run the machine after? If so, there probably was enough residual oil mix still in the the tank/system to cover you.
If you did not run it, simply dump the gas in it and add the proper mix.