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Subject: NAA Jubilee Dies With Load

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Don G    Posted 08-06-2019 at 04:24:10 [URL] [DELETE]        [Reply] [Email]  
  • NAA Jubilee Dies With Load
  • We have a 1953 NAA Jubilee that we use to mow our runway. Recently, whenever you engage the power take off and run the mower deck the engine boggs down and wants to die. If you disengage the power take off the tractor will run fine at low throttle settings. It seems like a fuel problem. We have cleaned the fuel bowl, screen and blown out the fuel line. Also, the carb has been rebuilt this past spring and we checked the points. It had been running fine.
    Was wondering if this sounds familiar to any of you? What common problems we should be looking at. We have an owners manual and have gone through the trouble shooting section to no avail.

    Thanks
    Don

    Ozlander    Posted 08-06-2019 at 11:39:15 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA Jubilee Dies With Load
  • All the screens can be checked by removing the drain plug on the bottom of the carb. You need to catch at least 1 cup of gas in 3 minutes. If you can, you don't have a fuel problem.

    Rustyal    Posted 08-06-2019 at 07:29:28 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA Jubilee Dies With Load
  • Check the spark plugs and points. Weak spark.

    woodworker40    Posted 08-06-2019 at 06:39:11 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA Jubilee Dies With Load
  • Have you checked to make sure nothing is wrapped around the blades and puts a big load on the tractor?

    Dead Eye Dave    Posted 08-06-2019 at 04:41:14 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA Jubilee Dies With Load
  • There are two other screens to be checked and cleaned, one is attached to the inlet to the carburetor while the likely suspect is attached to the top of the fuel valve into the bottom of the gas tank. To check this one requires draining the tank and removing the valve. If the tank has a lot of crud it will need to be flushed. Just my thoughts. Dave

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