Quantcast
Jump to content

  • Join Today, It's Simple and FREE!

    As a member, you can post in our forums, upload your photos and videos, use and contribute to our downloads, create your own member page, add your ATV events, and even start your own ATV club to host your own club forum and gallery.  Registration is fast and you can even login with social network accounts to sync your profiles and content.

mr400ex

2003 400ex Only Starts by Jumping Solenoid

Recommended Posts

Hey everyone! Working on a 400ex for a friend of my mom's because it will only start when you jump the solenoid. I have pretty much gone through all the wiring from the battery up to the plug for the start button and nothing is broken or connected incorrectly. I tested the yellow/green and yellow/red wires that come from solenoid and they both read 0 volts as they should. The key switch reads 12v as I believe it should as well. What has me stumped is that the black wire that comes out of the start button assembly reads different voltage numbers, although I know it should be 12v. Is it the start button for sure or could something else be causing me to get that reading? Thanks and sorry for the long post

Share this post


Link to post
Share on other sites


could be dirty contacts inside the start button, some come apart some dont .... sand or use contact cleaner ... could also be a bad solenoid ....

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Topics

    • By Freezeman
      Well I came on here hoping to read a manual about the quad but found that I have to make some posts before that can happen, so here is one. 
      I work on peoples stuff. Had this well used unit come to me with a no start issue. I found it had fuel  and spark was good but it only had 30 pounds of compression. I put each cylinder to TDC and feed the plug hole with a small amount of air pressure and could hear the escaping air coming out the carb openings. I then checked the valves lash at TDC and found that booth cylinders had 0 lash for the intake valves. I reset the lash to .003 for all the intake valves and reapplied a small amount of air pressure and the leaking of air was gone. I then spent a few hours screwing all the parts I had to take off, back together and then drove it out of the shop.
      The lash was only 1/4- 1/2 a turn too tight that caused the valve to stay open just enough to make it not start. IMO the heads could use an overhaul some time soon as the valves and seats have become a bit warn.
      These ATV's just have too much crap stuffed into a small space, I wounder how many fasteners are used to hold 1 ATV together?
      Later, 
    • By Sturgeon
      Hello everyone, did a search and not successful. Purchased new 2017 Sportsman 570 sp and my power steering is not working. Seems to have a mind of it's own. Works then it doesn't. Dealer says there's not a fix. Thought it was just me and it being a brand new machine with 4 hours on it. Dealership said it's this model only ? Not sure what a person in this spot is suppose to do and wondering are your thoughts mite be. Thanks 
    • By Ajmboy
      With this cold snap, I noticed yesterday that the battery on my grizzly was a little weak. even clicked a few times before I got it to start. I'm thinking of picking up a batter tender/ trickle charger so was wondering what people use to keep their ATV battery charged up. I was looking at these on amazon. They both have good reviews.

       
      or this one

       
      Kind of like this one because if the accessory plug

    • By colt
      Here is what I have collected over the years and maybe it will help someone else.
      There are so many and several are too large to upload as attachments, so see any thing you need just shoot me a PM and your email and I will get them on the way to you as fast as I can.
      Thanks
      50cc to150cc Service Manual For Tank Motorsports.pdf
      linhai-atv-service-manuals-linhai-300-parts-manual.pdf
      1986 CH250 ELITE SERVICE MANUAL.pdf
      Charging and ignition systems for atvs.pdf
      Chinese ATV Frame Diagram.jpg
      Chinese ATV Repair Shop Manual - Clutch Diagram - Exploded Views.jpg
      Chinese ATV Repair Shop Manual - Cylinder Head Diagrams.jpg
      Chinese ATV Repair Shop Manual - Torque Specifications.jpg
      Chinese ATV Repair Shop Manual - Valve Clearances.jpg
      Dinli-501-PARTS-DINONP.pdf
      Dinli-601-Parts2003BEAST-DIAMONDBACKNP.pdf
      Dinli-DL-5015erviceManual.pdf
      Dinli-DL-502PartsManual.pdf
      Dinli-DL-5025erviceManual.pdf
      Dinli-DL-503PartsManual.pdf
      Dinli-DL-601,DL-603ServiceManual.pdf
      Dinli-DL-603PartsManual.pdf
      Dinli-DL-604PartsManual.pdf
      Dinli-DL-701PartsManual.pdf
      Dinli-ServiceManual-150ccATV.pdf
      DTE150-2-150cc.pdf
      Eagle ATV Fender Body Parts Exploded Diagram.jpg
      Eagle ATV Rear Axle - Exploded Diagram.jpg
      GY6_150cc_ENGINE_PARTS_157QMJ_.jpg
      GY6_Top_End_Rebuild.pdf
      Leopard-parts.pdf
      Linhai_260servicemanual.pdf
      Odes-400-Repair.pdf
      Piston Ring Installation 4 Stroke Engines.jpg
      Roketa-ATV-10(ATV-DO43)-Repair.pdf
      Roketa-ATV-11(ATV-D037)-Repair.pdf
      SLA-120-PARTS.pdf
      SLGK-110-PARTS.pdf
      SLGK-150R-PARTSMANUAL.pdf
      SLGK-400R-PARTS.pdf
      SLU-500-600-700-PARTS.pdf
      slu700db-700UTV-Service-Manual.pdf
      tao-tao-atv-parts-cylinder-rebuild-kit-for 90cc-100cc-110cc-engines-p-13331.pdf
      Trouble Shooter Guide for BATTERY DRAINED Chinese Engines.txt
      Trouble Shooter Guide for NO-COMPRESSION.txt
      Trouble Shooting No Crank.txt
      Troubleshooting.pdf
      YX125CC BREAKDOWN.pdf
      _________________________________________________________________________________





      50 to 150cc GY6 Shop Manual.pdf
      Arrow 150 Engine Service Manual.pdf
      Eton Shop Manual YXT-150.pdf
      GY6 Shop Manual.pdf
      Yerf Dog Spiderbox GX150 Service Manual.pdf
    • By JacobSlabach
      Theres a horse farm I work/worked at and they have a Rubicon (500cc)  think its a 04.  Its been having starting issues.  First time it wouldnt start, the owner said it had a new battery in it (this is about a year ago I guess..).  I replaced the solenoid and then the starter.  the battery was dead so I jumped it and then it started fine after the battery charged.  about a month later, same problem.  I swapped the solenoid back out with the old one(still had it)- nothing.  the owner had another battery she said was good, swapped that out and it fired up.  Now, today, same problem again... owner says the starter was sluggish and then the battery went dead.  Went out and jumped it again and it ran fine (its a carburated atv so its not fond of under freezing temperatures...).  the stater is working cause when I got there, the battery had 7-9v on it (multimeter said it was rising and falling (with the key on)).  I jumped it off  our van and rode it around for say 5-10mins.  when I shut it off again, battery is reading 14v with key off and 13v with it on.  thats as far as I've gotten..  I asked the owner to let me know if anything else happened later on..  What I'm wondering is if its just the battery, or maybe is the regulator rectifier not working letting the battery be overcharged cause it to die?  And then again, the bike could have sat with the key and headlight on overnight for all I know..
  • Similar Tagged Content

    • By Chayse Hill
      I have a 2003 LTZ 400 that i bought a few days ago. The quad was running fine until last night. I let my brother ride it down the street and back and i didnt notice anything etong with bike. Then my neighbors friend came over and said "can i ride it?" I said "sure" so he ripped it down the road all fine and when he got back it died right in front of us. My brother said it was dieing on him also. He also said that he wasnt using the clutch to shift. I told him he was an idiot. Im throwing that in there incase that caused a problem as well. But today i go to check it to make sure its getting fuel which it is and replaced the spark plug incase it wasnt getting spark but it is. So i started it and it was having a problem starting then i got started and was reving at idle high. So i took it around the block and it died on me a little bit down, so i try to restart it and it started so i kicked it into 1st and it kinda launched on me and started going with the clutch all the way in. Then it died right after and wasnt running right during that process and was idleing all over the place and just died and now i cant get it started it again. Before it would start without the choke or priming it. It would start real quick now i cant figure if it needs to be rejetted or something else. Air filter looks clean also. But any help would be gratelly appreciated!
    • By Racer944
      Hi Folks;
      Has anybody on here installed a winch on a 2003 Magnum 2x4? I am using a Cycle Country adapter plate (only one I could find), but am having a bit of trouble getting it all to fit properly, and am looking for someone that may have done this install and/or may have some pics of the installation.
      Thanks!
      Eric
    • By Wonderwoman
      Hello, well back to where I was last year with this carb. Took my 250 to the mountains for the first time this year and blue smoke, too much gas again. I can't believe that this carb gives me this much trouble. Seems like the choke is stuck but the cable moves freely. Anyone else ever experience this issue? Do you think a new choke cable would maybe resolve this?http://www.quadcrazy.com/atvforum/images/smilies/arghh.gif
      OK it was the choke. Put on all new cable and plunger and she is running 100% again. So now the question is, is the carb getting worn out where the plunger needle goes in the small hole and when I use the choke the needle end doesn't get lined back up with the hole?? We'll see how it runs and now that I know what the issue is I can always pull the choke plunger out and reinstall if I start having this issue again.
    • By davidwestfall
      looking for direct shift shifting lever that properly fits my 2003 Yamaha warrior 350 and fits my foot the same as a stock 2003 Yamaha warrior 350 shifting lever fits my foot
    • By gyminis
      i have a 2009 grizzly 700,replaced the fuel pump and filter,replaced the spark plug and checked the air filter for a mouse house! it runs then shuts down,wont stay running,does the fuel line need to be primed and air free to run properly or am i missing something obvious??????????????
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...