I tried to clean the original carb., the unit still wouldn't fire. I went ahead and sent the aftermarket one back and ordered a good one. Thanks, you guys for all of your help.
I have a fairly new DR Trimmer with a Briggs ex675 motor. I didn't empty the gas over winter. The nit wouldn't start. I bought a new carburetor and installed it. The mower started right up but it doesn't run smooth, it lopes. What is wrong?