Question about John Deere 3010,3020 Tractor Basic Carburetor Repair

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1981 John Deere 317 carburetor screws for the idle, and choke are not set correctly. Will not start.

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When it comes to carb adjustmant,my recomandation is for you to seek a professional to do it for you. You can fight with it for a while and not get it,small engine mechanics that do it all the time could have your problem fixed rather quickly and wouldnt charge you much,but thats up to you.

Posted on Aug 09, 2009

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Need Drive Shaft for JD 317 with 17hp Kohler engine, 1981 year bought


The I had I just replaced the U Joints in it. But yours might have been let go to long and tore up the ends . You can buy them new on ebay link attached. Has some good picture JOHN DEERE OEM UNIVERSAL DRIVE SHAFT AM37875 317

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John Deere L130 riding lawn tractor will not start what do I do?


I'm assuming the motor will crank over, but not start. Remove the air intake cover & filter off the carburetor air intake. Do you smell gas? Is gas dripping out of the carburetor? If not, spray a couple shots of starting fluid or carburetor cleaner into the carburetor air intake throat. Close the choke & crank the engine. If it starts, & stalls, repeat the process. If it won't stay running, your carburetor float jet is gummed up & needs to be cleaned. Check & clean the spark plug. Does the spark plug fire when the engine is cranked? If no, then you have an ignition problem.

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1 Answer

LA110 only runs with choke


Most likely the Nikki carburetor needing a good ultrasonic cleaning and a carburetor repair installed. It would be best for regular lawnmower repair shop to do this as the Nikki can a pain to get the parts replaced correctly and even the new gaskets can leak sometimes.

Oct 21, 2013 | John Deere Garden

1 Answer

How to clean carburetor on John Deere JS36 Lawn mower


Indeed, a dirty carburetor can prevent the John Deere JS36 from starting or running correctly. Mine had this problem. A video that helped:

http://www.youtube.com/watch?v=ArCAivgAyww

The video is more in depth than you need but basically shows you what to look for inside the unit. Essentially: Remove the air filter assembly from the carburetor (a couple of bolts). Clamp off the fuel line, disconnect it from the carb. Unbolt the carb from the mower (a few bolts). Disconnect the choke and throttle arms from the top of it. Unscrew the cup from the carb, clean everything out. I used compressed air for all the little fuel channels. Reassemble, reattach.

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1 Answer

The John Deere 317 will not start it is pumping fuel and has fuel it will start when spraying ether but will not keep running


Most likely the carburetor has some debris in it. The solution is to remove the carburetor and clean it out of all debris an clearing all the little holes and passages in the carburetor.

I hope this helps get you going again.

Aug 11, 2011 | John Deere 420,1020,2010,2020,2510,2520...

1 Answer

Fast idle


The specification calls for 900 rpms for the idle speed when warm for the 1987 Dodge Shadow.

One can adjust this with a screw on the carburetor, if it has one.

If it's fuel injected the idle speed is automatically controlled.

Fast Idle Speed HOLLEY 5220/6520 Fig. 5: Turn the adjusting screw with a screwdriver to raise or lower the fast idle speed — make sure that the adjusting screw is resting against the lowest speed step 86735g04.gif
NOTE: This procedure is performed while the carburetor is installed on the engine.
  1. On 1981–82 cars, disengage the two-way electrical connector at the carburetor (red and tan wires).
  2. On all years, disconnect the jumper wire at the radiator fan and install a jumper wire so that the fan runs continuously.
  3. On 1983–86 models, pull the PCV valve out of the valve cover and allow it to draw underhood air.
  4. Disengage the oxygen sensor system connector located on the left fender shield near the shock tower.
  5. Ground the carburetor switch with a jumper wire.
  6. Open the throttle slightly and place the adjustment screw on the slowest speed step of the fast idle cam.
  7. With the choke fully open, adjust the fast idle speed to comply with the value indicated on the underhood sticker.
  8. Return the vehicle to curb idle, then reposition the adjusting screw on the slowest speed step of the fast idle cam to verify fast idle speed. Re-adjust as necessary.
  9. Turn the engine OFF, remove the jumper wire and reconnect the fan.
  10. Reinstall the PCV valve and remove the tachometer. On 1983–86 models, reattach the oxygen sensor system connector, and remove the jumper wire from the carburetor.
Fast Idle Opening MIKUNI
  1. Before adjustment, leave the carburetor alone for approximately one hour at 73°F (23°C).
  2. Adjust the fast idle opening by turning the fast idle adjusting screw to the following specified values (drill diameter):
    • 2.6L engines equipped with manual transaxles — 0.028 in.
    • 2.6L engines equipped with automatic transaxles — 0.031 in.
Choke Valve Setting MIKUNI Fig. 6: After tightening the choke cover lockscrews, cut the heads off of lockscrews A (total of 3 screws) and stake the heads of lockscrews B (total of 2 screws) with a blunt punch 86735g56.gif
NOTE: This procedure need only be performed if the carburetor is disassembled.
  1. Fit the strangler spring to the choke lever.
  2. Assemble the choke valve, aligning the inscribed line or black painted line on the tooth of the choke pinion with the inscribed line on the cam lever.
  3. Temporarily tighten the new lockscrews.
  4. Set the choke valve by moving the pinion arm up or down, align a punched mark on the float chamber cover at the center of the three inscribed lines, and secure the pinion arm with the lockscrews.
  5. Install the choke cover and tighten the lockscrews.
  6. Cut off the heads off of lockscrews A.
  7. Stake the heads of lockscrews B using a blunt punch.
Vacuum Kick HOLLEY 5220/6520 NOTE: This procedure is performed while the carburetor is installed on the engine. If the vacuum kick is adjusted to open the choke too far, the engine may stall or idle very roughly just after cold start. If it is adjusted so that the choke does not open enough, there may be black smoke in the exhaust. NOTE: To perform this procedure, you will need a hand held vacuum pump capable of producing at least 15 in. Hg (50.6 kPa) of vacuum. The vacuum kick diaphragm may be damaged if you attempt to retract it manually. You will also need a drill or dowel which has a diameter equivalent to the specification for Vacuum Kick in the Carburetor Specifications Chart.
  1. Remove the air cleaner. Open the throttle, close the choke and hold it in the closed position, and then release the throttle to trap the fast idle cam in the choke-closed position.
  2. Disconnect the vacuum hose at the choke vacuum kick diaphragm. Connect a vacuum pump and apply 15 in. Hg (50.6 kPa) or more of vacuum.
  3. Gently move the choke blade toward the closed position just until play is eliminated from the vacuum kick linkage (so that the vacuum kick is determining choke blade position).
  4. Insert the drill or dowel into the gap between the upper edge of the choke blade and the air horn wall, toward the center of the gap. The dowel or drill should just fit into the gap. If necessary, rotate the Allen head screw in the center of the diaphragm housing to create the proper gap and then recheck with the measuring device.
  5. Restore all vacuum connections and reinstall the air cleaner.

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2 Answers

Need owner's and service manuals for John Deere Model 317/


First off, Mowerman's response was incorrect about the age of a JD 317.  They were made from 1979 to 1982.
You can only get manuals either through here:  http://techpubs.deere.com/deere/Default.aspx  or from a dealer.  They're expensive.  You can find them on ebay and also here: http://www.ssbtractor.com/tractor_manual_display.cgi?m=John%20Deere&o=317%20Hydrostatic but I haven't used that site.

Oct 07, 2009 | Garden

1 Answer

Only idle


Take that carburetor apart and soak in carburetor cleaner and run a small wire down each passage and blow out the passages with compressed air.

Aug 22, 2009 | John Deere 3010,3020 Tractor Basic...

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