From: lfiskgr@gmail.invalid   
      
   On Mon, 7 Jul 2025 11:52:37 -0500   
   Snag  wrote:   
      
      
   > I saved on the clutch only to find the new in March fuel pump has died   
   >. The original had replaceable check valves - if you could figure out   
   >which ones you needed - these are molded into the plastic top section .   
   >The outlet valve isn't closing and it's fuel starved . And that little   
   >bastard wasn't cheap , 35 bucks plus and it fails in like 3 months .   
   >   I briefly considered mounting an "IV bottle" to gravity feed but   
   >that's a bit too "country" even for me .   
      
   Mine would stumble at times and catch again. Usually on HOT days and   
   after running the gas tank maybe to half or less (filled before   
   mowing). It has a Kohler Command 25hp 2-cyl on it with a Crankcase   
   Pulse Fuel Pump. Just put up with it for awhile but it kinda bugged me.   
   I ordered a cheap replacement pump and a new air filter on a hunch. The   
   Air Filter looked okay but had oil from the rocker cover (vapor   
   recovery) contaminating it. Replacing the Air Filter got rid of the   
   stumble, didn't need the new pump. Has been a couple years now and   
   hasn't happened since. The vapor recovery is a direct shot into the   
   intake, bypasses the Air Filter. Think it was sucking so hard on the   
   vapor recovery that it was messing up the amount of "pulse" available   
   for the fuel pump...   
      
   --   
   Leon Fisk   
   Grand Rapids  MI   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)