Small Engines (Lawn Mowers, etc.): 4.75hp B&S Yard Machines mower, s yard, yard machines


Question
Mower ran fine a week ago, but after a week in the shed, it will start only after I pump the primer bulb, and run only long enough to burn the primed fuel.

Answer
Hi Andrew-
1- Get a can of carb cleaner
2- Drop the fuel bowl, its under the carburator and is held by a single nut.
3- Verify the float is able to control the fuel coming in by moving the float.  When hanging down, fuel should enter.  If it dosen't, you have an obstruction from this point back to the tank- change your lines, flush your tank.
4- If thats ok- spray cleaner up through the main jet hole in the center of the bowl.  Make sure you get spray into the carb throat.  Be aware there are two jets, idle and main.  You need both to be clear.
lemme know how it goes.