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JD model 50 carburetor adjustment

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doug exley

08-01-2002 15:56:25




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I have a Marvel-Schebler carb with idle and load needles. How many turns open should the load needle be set? I have it set @ 1 1/4 but I cant open the throttle all the way without cutting out.
Also,i am using autolite #368 spark plugs and they get carbon build up causing foul out. What can I do to avoid this carbon build up. Could it be the carb problem? Or wrong plugs? Thanks for any help! Doug

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Clooney

08-01-2002 17:20:42




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 Re: JD model 50 carburetor adjustment in reply to doug exley, 08-01-2002 15:56:25  
Doug, is your 50 an all-fuel or gas?
~Is your DLTX a single or dual?



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Doug Exley

08-02-2002 05:36:46




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 Re: Re: JD model 50 carburetor adjustment in reply to Clooney, 08-01-2002 17:20:42  
My JD 50 burns gasolene. The carb has an idle needle and a load (power)needle adjustment. I have the idle adjusted fine. I'm having trouble with the load adjustment.



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Clooney

08-02-2002 12:35:48




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 Re: Re: Re: JD model 50 carburetor adjustment in reply to Doug Exley, 08-02-2002 05:36:46  
Doug, you still didn't say if it is a single or dual but you said "carb has [an] idle needle, & didn't say it has 2, so I will assume it is a single DLTX.
~Set the idle needle to 2 turns out from seated & the load needle 1 turn out from seated to start with & adjust from there when warm..
~Does the load needle have any effect on engine performance? If not, or very little you probably have a blockage in the load nozzle [plugged holes in the side of it] or a plugged or partially plugged bowl vent.....

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