anyone using a Kubota W5021 walk behind mower?

Discussion in 'Lawn Mowing' started by _CY_, Mar 27, 2009.

  1. fumblefingers

    fumblefingers LawnSite Member
    Posts: 55

    The service manual sure helps. After viewing the pages from CS95 I see I put the float spring in wrong. Tomorrow, I will pull the carb apart again.

    I am glad I have a air wrench to remove the blade. When I am sure the engine runs correctly, I will overhaul the blade clutch then check the valve clearance.
     
  2. treysoucie

    treysoucie LawnSite Member
    from houston
    Posts: 126

    I just picked up a paper manual. I'll have to check the clearances and such on the clutch. I have a feeling it not gonna be cheap to get my non propelled 5021 back to OEM specs. I may strip it down entirely. Repair t it. Sandblast what I can and put her back together. It will make a nice yard vacuum I think
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  3. fumblefingers

    fumblefingers LawnSite Member
    Posts: 55

    If you are careful a ot of times you can rehab parts. Don't forget to send a pix of your throttle settings :)
     
  4. fumblefingers

    fumblefingers LawnSite Member
    Posts: 55

    Got some gas today and engine started with one pull but ran too fast and flooded. Pulled spark plug and confirmed so guess I will try to find a float and needle valve. Grrr. Would not start again even after drying plug. I did not change any of the carb adjustments as they were ok 15 months ago.
     
  5. treysoucie

    treysoucie LawnSite Member
    from houston
    Posts: 126

    I will try to get you pics tonight... Does the float and needle valve look bad? are the floats set to OEM Spec? Have you messed with the idle air screw at all (it may me a fuel screw, if the adj. screw is upstream of the pilot circuit it is an air screw, if its downstream its a fuel screw)?
     
  6. fumblefingers

    fumblefingers LawnSite Member
    Posts: 55

    The float is plastic and has no adjustment. I did not mess with any of the screws. I do not hhave any of the adjustment procedures for the sccrews but assume they were ok as when the unit was running they had been set (unless someone turned them when trying to start mower for my daughter)
    The only parts I removed were the pilot jet, main jet, plastic choke pickup tube, float, float pin, float spring. Then carb cleaner. Since the engine ran so fast for 5 seconds before shutting down, I assume the governor had something to do with it.

    If the float pin is not adequately sealing the carb, the chamber level will be too high causing flooding. I have just one page about the carb and it deals only with cleaning jets and float chamber. If you have more I would appreciate it
     
  7. treysoucie

    treysoucie LawnSite Member
    from houston
    Posts: 126

  8. treysoucie

    treysoucie LawnSite Member
    from houston
    Posts: 126

  9. fumblefingers

    fumblefingers LawnSite Member
    Posts: 55

  10. fumblefingers

    fumblefingers LawnSite Member
    Posts: 55

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