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Repair guides and support for gas, electric, and human powered machines used to cut grass, whether push style, or ride-on.

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Lawnmower problem with Fuel pump

I have a lawnmower that gets veey little gas coming out of fuel line. I have replaced fuel filter,pump, and lines. Now I discover the line coming from crank case is blowing air instead of a vacuum voming through line. What could be causing this and how could I fix it

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Check line from valve cover for cracks and leaks. Set valve lash. Plus check compression on that side cylinder. Mine developed rust scarring on one side, blew smoke. Am re-ringing with oversize and bore. One thing that helped for a little while was running a gravity feed fuel cell on top of hood.

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Tony Coleman will be eternally grateful.
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