Quantcast
Jump to content

Recommended Posts

Posted

I have a 1989 Yamaha Moto 4 250. It starts right up on first pull and runs like a champ. However there is a reason I'm having to pull start it. When the bike is running the lights and the kill switch work but when the bike is off I have no power. The battery is brand new. Do I start with the regulator or maybe the CDI? I wasn't sure if the coil or the starter had anything to do with it. Any feed back would be greatly appreciated.

  • 1 year later...
Posted

I came on to ask a similar question, take it by responses to yours, zero, that we are on our own here...

My 87 decided to discharge battery when not in use, so I unhook it when she sits, a hassle, until I get a chance to figure out what the common things that go wrong when the key is off and a battery drain, seems to charge well when running. Took out a brand new Gel battery on me.. garden tractor battery strapped to rear grab bar for now, looks ghetto...

Posted

I would have checked with the ignition switch and followed wires to harness near steering head.

It would start without the neutral light on, or whichever it is, not by my rig and been 5 months since rode it.. but recall a light came on when turned key then it would start, there is a single wire in rear that pigtails off the battery cable, would have looked there as well, easy to get bumped off if you picked up something with tires... hope you had it resolved by now, been over a year... chime in and tell us what it was..

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 Forum Topics

    • By RGS
      1989 Moto 4 YFM350ERW intermittent spark.
      Quad has set for about 7 years and was running when parked.  When I replaced the battery and attempted to start it had no spark. 
       
      What I have done.  Followed troubleshooting in the manual. 
      1.       Coil failed the resistance check so I replaced it.  Still no spark.
      2.       I performed resistance checks on the stator and they all pass.
      3.       Found a bad rear brake stop switch and unplugged it and connected the wires in order to disable.  Now I have intermittent spark.  I believe that the issue is with either the stator or CDI and not sure which.
      1989 seems to be a transition year for electrical.  I can get new aftermarket CDI units for 87-88 and 90-94.  I cannot get ones for a 89.  I can get new stators for 87-89 and 90-95.  Looking at the schematics the wiring on my moto is closer to the 90 ones on the ATV side of the CDI and closer to the 87-88 on the stator side of the CDI.  Looking at part supply sources the stator housing is the same part # for all the years and looking at some of the stators on Amazon that have the dimensions on them both of the stators are the same size.
      What I am thinking of doing is to replace the stator and CDI with a 90-95 one as these parts are all readily available.   Does anyone know if this has been tried before and if there are any issues with doing this.  
       As a side note I also have a 1993 Moto 4 YFM350ER that has been sitting longer but it is located about 400 miles from me at this time.  By doing this change in addition to being able to get parts I will also have 2 ATV’s that are the same electrically. 
    • By AnthonyT
      In search of my first ATV? What are good older 4x4 models?
    • By Frank Angerano
      So I decided to pick up a small trailer if I could get one for the right price.  I found this one for a few hundred bucks on Craig’s list.  It is  a galvanized trailer which is exactly what I was looking for. The wood was shot and needed some minor repairs which I could care less about as long as the chassis was good. 
      I striped it down and put a new deck on. I had some vinyl realtree graphics that I had laying around so I added them to the fenders which I think worked out well. Very happy with this little guy.  
      I'm having the iron workers at my jobmake me up a few lightweight side rails that will have a 22 degree bend in them to accommodate the tires that slightly hang over the edge and will incorporate some tie down points as well. 








    • By BuckBilly
      I like to ride in wooded and grassy areas. It takes my mind off the everyday routines and helps me deal with my father's cancer. Also gives me a reason to get involved with forums like this one.
    • By Tinkeringreg
      Hi my name is Greg and I just acquired a free 2000 yamaha kodiac 400 4x4 with the ultramatic transmission that does not run. I plan to get it going and use it around my property

×
×
  • Create New...