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  1. W

    Need some helpnew Kohler comand pro Engine 680 installed cranks but will not start

    I just installed a new Kohler Command pro Ch680-3081. in a John Deere F620. The Oil filled , gassed, new battery, I primed the carburetor , it will crank but will not run. I suspected the engine wire harness and after viewing a loose wire from the back of the Kohler engine female connectors...
  2. W

    Kohler engine replacement On John Deere 620 and 687

    I have two John Deere mowers a F620 60" 7 iron deck with Kohler 20 hp CH20S-64556, I have a John Deere 23 hp F687 with a Kohler CH23 or 680- both the same mowers orginal engines. I need new engines looking a the CH680-3081 which is a Kohler engine made for John deere. Question: Does anyone know...
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