Lawn moyer repair.?

Question

Any ideas as to why my lawn mower 4 years old will start on the first pull and then just slowly stop. I put in a new spark plug checked the oil-no luck .I never had a problem in the past always started the first pull. THANKS

Answer 1

at four years it may have rust/dirt in the fuel tank restricting fuel to carb. which may be full of same. If you clean air filter and fuel system it run like its' old   new self.

Answer 2

sounds like you got build up  of debris in gas line- filter or carburetor-enough gas it getting through to crank but not enough to run