Small Engines (Lawn Mowers, etc.): kohler motors 2 of them, fuel tank cap, intake leak

Question
hi my name is anthiny I have a kohler motor 2 of them actually their both the same engine. sv600-0018 and sv600-0019 one serial # is 3710900993 when these motors are cold they do not want to start i checked for fuel getting plenty i checked spark very hot i even reset the govenors acording to the service manuals once these motors start they run very well no missing or any thing do you think it could be the valves need adjusted oh and i also checked the compression. i did try someting just to see what would happen while i was cranking the motor i pulled the govenor back and it trys to help start it what do you suggest i try next

Answer
Anthony

Sounds like you may have a intake leak letting to much air and not enough fuel. Check all the gaskets around the carb and check that the carb is not loose.

Possible causes:

  1. Fuel tank is empty or shutoff valve is closed, or fuel line or fuel tank cap vent is clogged.
  2. There is water in the fuel.
  3. Carburetor is overchoked.
  4. Carburetor is improperly adjusted or needs service.
  5. Ignition system or its wiring is defective or ignition switch is off, or timing way off (e.g., broken flywheel key).
  6. Deadman or other cutoff switch is open or defective.
  7. Spark plug is fouled, improperly gaped, or damaged.
  8. Engine compression is poor.