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    dannac's Avatar
    dannac Posts: 267, Reputation: 9
    Full Member
    		  
    #1

    Jun 20, 2009, 11:50 AM
    3.5 B&S engine . Need to keep pressing pump to run
    3.5 B&S engine on my push lawnmower. ( 3rd cutting season)

    No throttle.. a small rubber gas pump near carb.

    Recommended 3 to 4 pumps to start... it'll take more like 6 or 7 to start.

    It will run 10 / 15 seconds, then I got to do it over... maybe 3 or 4 times before it keeps running.

    The last time I cut, I continually had to pump gas or it will kill.

    Any advice appreciated .
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Jun 20, 2009, 03:12 PM

    Your carb is likely clogged. Drain the fuek completely and drop the bowl. Clean the bowl and needle/seat with SeaFoam or other good carb cleaner, refill with freshly bought gas. Add a oz of SeaFoam to the tank and pump and start a few times until the issue clears.
    dannac's Avatar
    dannac Posts: 267, Reputation: 9
    Full Member
    		  
    #3

    Jun 25, 2009, 11:05 AM

    Bought Seafoam... poured a little gas tank which was approx 1/4 full.

    Got it started... had to press pump a few times until it would keep running on its own.

    First 5 min or so it would miss/erratic but kept running.

    Last 5 min or so it ran smoothly until no gas.

    Thanks for your help.
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