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Subject: 52 8n

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Doug    Posted 01-02-2018 at 22:16:15 [URL] [DELETE]        [Reply] [Email]  
  • 52 8n
  • She was a moody little sob but I got her running and home. My dad has an easier time starting the 52 than I do, he has the choke and throttle figured out. I just end up flooding the poor thing.
    I brought the 52 home to use plowing snow if need be but if you leave all your lift link pins on your tractor that's not home it can be very difficult to put the plow on.

    K.LaRue-VA    Posted 01-03-2018 at 17:08:42 [URL] [DELETE]        [Reply] [Email]  
  • Re: 52 8n
  • These are taken directly from the operator's manual:

    Every engine is a little different, but if you need to do anything radically different from what is printed in the manual, it's past time for some basic maintenance. My tractors have Autolite 437 plugs. I've never flooded one that would not start by simply releasing the choke and opening the throttle wide open.

    Bruce (VA)    Posted 01-03-2018 at 13:21:33 [URL] [DELETE]        [Reply] [Email]  
  • Re: 52 8n
  • While each N has its own starting sequence, none of them will start well by just yanking out the choke rod & holding it out for 5 or 10 seconds while the engine cranks. This is a gravity fuel system on a low compression engine; it is easily flooded by too much choke.

    Try this:

    Key on, gas on 2 full turns, clutch in, 3/4 throttle, press the starter button. Let it crank for at least 3 - 4 seconds before you pull the choke rod. Then, don't hold it out for more than 2 or 3 seconds.

    If you find out it will not start w/o excessive choking, you have problems.

    Frank (WNY)    Posted 01-03-2018 at 14:40:44 [URL] [DELETE]        [Reply] [Email]  
  • Re: 52 8n
  • Bruce, please correct me if I'm wrong, but the choke closes off the air to the carb to create a vacuum while the engine is cranking to draw gas from the tank through the carb?
    Holding it too long just pulls too much gas into the cylinders and that's how the engine gets flooded right?

    Bruce (VA)    Posted 01-03-2018 at 15:00:44 [URL] [DELETE]        [Reply] [Email]  
  • Re: 52 8n
  • You already have a vacuum from the valve/piston action. Pulling the choke out gets you a richer mixture, ie, more gas than air which makes it more volatile. If the spark does not ignite that overly rich mixture, then yes, the vacuum pulls too much gas into the cylinders and that's how the engine gets flooded. The plugs get wet & they won't give you enough spark to ignite the fuel.

    Frank (WNY)    Posted 01-03-2018 at 11:21:20 [URL] [DELETE]        [Reply] [Email]  
  • Re: 52 8n
  • I think that it depends on the condition of the fuel system, gas, carb settings, ambient temp, ect. My 50 usually starts with the throttle at a few notches from minimum and no choke until it starts to sound like it is ready to stall. Then, I yank and release the choke once or twice. It took a lot of starts to learn this. I used to give about 1/2 throttle and hold the choke closed while starting and it would flood every time. I am sure every 8N is different.

    PatrickB    Posted 01-03-2018 at 10:08:05 [URL] [DELETE]        [Reply] [Email]  
  • Re: 52 8n

  • "he has the choke and throttle figured out"

    My cold weather starting procedure on the '52 never varies:
    3/4 throttle, 3/4 choke and it always starts. Might take 30 seconds
    or more to feather it back in. If I try anything different than that
    I WILL regret it.

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