Question about John Deere 420,1020,2010,2020,2510,2520 Tractor Float
John Deere L118 will not start. I believe it is a fuel problem as I can get it started by priming the carb and will continue to run as long as I dribble gas down the carb. After new fuel filter, air filter, spark plugs and blowing air through the fuel line all the way to the carb I cannot get gas to come through into sight through the carb when trying to start? Any suggestions? Thank you.
If you have gas running down to the carberator ( take the fuel line off and make sure there is gas running to it or there may be a screen or filter plugged by the tank or on the way to the carb) if there is gas there the problem lies in the carb itself. If you have some mechanical ability you should be all right as it is not rocket science. If you are comfortable with taking the carb apart the first thing i would check is the needle vavle. With the carb apart you will see a big brass looking thing this is the float, right above that is the neddle valve, that is the first place they seem to stick on me. Move the float up and down if the neddle above it doesn't move or sticks there is your problem. Spray it with carb cleaner and see if it moves freely. You may have to dismantle the carb to get it to work freely. If it won't buy a carb kit and install all the new gaskets needle valves and jets ( this is a very good ideal any how) Also make sure any little ports in the carb are open ( in the bottom of the carb there may be tiny little holes that are plugged) find a very small wire to clean them with and also make sure when you are done you can spray carb cleaner thru them. This is why they have a small straw on the can with it ( watch your eyes and wear safety glasses as you never know where it will spray out from) That stuff will dry your skin out fast so don't get it in your eyes and you may want to wear rubber gloves. Also be very careful when putting back together as there are little pieces that like to slide around and fall out or may get bent even worse you don't want them in your motor. Also try to count every screw you turn as these are jets and you will want to put them back to the place they were set at cause it's a pain to get them set right by adjusting them later. Do not force anything putting it back as you may bend the jets or float and you will have to take it apart again and replace them as well. Take your time and be patient and you will be just fine
Posted on May 08, 2010
Testimonial: "thanks...you gave me encouragement to give it a try. I took off the shroud, air cleaner box and couldn't take off the carb as there are no heads on the four bolts that hold it on. Looks like it was designed not to be removed? I took off an inspection plate on top of the carb and cleaned all of the channels and ports within with carb cleaner and compressed air...still no gas flowing thru carb...unless I force with compressed air. Any other thoughts? It is a twin cylinder OHV B/S. Thank you. "
Did the tractor sit all winter? It sounds like the slow speed jet is plugged. You have to get it out of there and get it clean, now sometimes just spraying carb cleaner in there will do it, but, some of that stuff will turn into a rock! And nothing will get it out. The holes are tiny, I tried to drill one out once to clean it up, I had a .005 drill bit and it was too big!! You need to get apiece of wire in there, dig it out, and blow through it to make sure it is clear. I can't tell you what jet it is, without looking at my tractor, but you might need to do both, some carbs don't have the jets, just needle valves, but they plug up too. Count the number of turns it takes to get it out, and put it back the same number. Check it out, hope this helps.
Posted on May 07, 2010
Testimonial: "thanks, I was thinking it would be in there somewhere and you confirmed it. thank you your advice was very helpful."
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Posted on Jan 02, 2017
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