screech 12 #1 Posted July 20, 2018 My Kohler M12S 312-8 stopped. I changed fuel filter. If I spray a little starting fluid in the air filter it starts but does not get gas to stay running. Do I need a new fuel pump. Full of ethenol free gas. It was running along fine and sputtered to a stop. Thank You, 2 Share this post Link to post Share on other sites
Achto 26,199 #2 Posted July 20, 2018 (edited) Make sure that the fuel line is not obstructed from the tank to the pump, reinstall the line. Remove the line from the pump to the carb & turn the engine over to make sure the pump is working. Put all lines back on & remove the float bowl from the carb. Turn the engine over to ensure gas is being pumped into the carb. These steps should narrow a fuel delivery issue down for you. Edited July 20, 2018 by Achto 1 Share this post Link to post Share on other sites
screech 12 #3 Posted July 20, 2018 Thank You Achto, I have gas to fuel pump. I took line off top of fuel pump, turned it over and no gas,,,zero, zip. So NAPA has fuel pump for about $62,,,,,on the way to order it. Thanks!! 1 Share this post Link to post Share on other sites
953 nut 51,029 #4 Posted July 20, 2018 Hope the new pump does the job for you. Any other concerns please feel free to ask here. Share this post Link to post Share on other sites
posifour11 723 #5 Posted July 24, 2018 When I've had fuel pump issues, I installed an electric pump hidden in the hood stand area. Leaving the old one in place. I also believe there is a guy on here that's making fuel pump rebuild kits to keep the original vs. the newer plastic ones. Share this post Link to post Share on other sites
Achto 26,199 #6 Posted July 24, 2018 35 minutes ago, posifour11 said: I also believe there is a guy on here that's making fuel pump rebuild kits to keep the original vs. the newer plastic ones. Kohler fuel pump rebuild kits for the metal pumps. http://www.then-now-auto.com/kohler-fuel-pumps-2/ 1 Share this post Link to post Share on other sites