My John Deere briggs and stratton will not start. I have installed a new fuel pump, cleaned the lines and filter. I can put fuel in the carborator, it will start but not keep running.

I work for a company called Gold Eagle Co. and we make a product specifically for this sort of problem. The product is called Start Your Engines! And it works like a drain cleaner, but for your small engine's fuel system. It will clean out any gunk in your engine very quickly and get rid of rough idle.

Google the brand if you're interested. Depending on where you buy it, it's right around $10 a bottle. Good luck!

Kevin

Hi,
If this is a mass merchant machine(L, LA, etc.) it could be a pinched fuel line at the tank(back of the machine) or a fuel line that has come loose from the pickup tube(left side beneath seat and fender deck.)
Peace,
Clarke