Quantcast
Jump to content

Recommended Posts

Posted

Im new to the group and hope to find some help here. I have a 1997 Yamaha Big Bear 4x4. I am having ignition issues. I have checked all switches to the CDI box and all check out. I Replaced The pick up coil and stator, as the pick up coil was open, no continuity. My problem is I can't find a schematic that matches what I have. My CDI has 2 plugs one 4 pin with 3 wires going to it, and the other is an 8 pin with 7wires going to it. I have traced all but one it is solid blue on the 8 pin plug. I have no idea where it disappears to with out tearing apart the harness. Any ideas as to what this wire goes to? A pin out of the cdi would be helpful, The number on it is F8T32372. Any other ideas before I try and find a new CDI. Thanks for any help. Robert

  • 2 months later...
Posted

Hi, Did you still need help with your Big Bear?  Sorry to hear about your ignition problems.  Did you download the service manual for your machine?  Not sure of your engine size, this might help:

https://www.quadcrazy.com/files/file/313-1997-1999-yamaha-big-bear-350-service-manual/

You'll need 10 posts on here before you can download, I might be able to help with that if needed.....:o)

Let me know if I can further assist - Cheers!~  Bellarmine

  • 8 months later...
Posted

Have a look here and see if you can identify your model..  Partzilla will tell you what any part you choose will also fit.. Look the part up, choose the part like you are going to buy it, and they will take you to a new page where it tells you what other models that wiring fits. If your wiring fits some other model, then the other model wiring will fit your bike. You can check their opinion by doing the same process in the other site.

https://www.yamahapartshouse.com/oemparts/c/yamaha_atv_2007/parts

https://www.partzilla.com/catalog/yamaha/atv/2007

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 hengstserepair
      Howdy ya'll. I am working ona 2000 Yamaha Breeze 125. It was in rought shape when I received it and I am working through issues as they pop up. The quad had been sitting for years. I was able to get her running again, but I need your help with the following issue:
      I don't trust the transmission yet and I don't want to make problems any worse. So, I haven't pushed things hard at all. Low rpms, less than 5mph in reverse.

      Nuetral: Runs as expected
      Reverse: She seems to be driving fine at slow speeds. Going into reverse at idle is fine, coming out of reverse back into neutral won't work (the shifter is just stuck). As soon as I turn off the quad, I am able to shift around without any issue.
      Forward: It slips. It seems to only transfer power to the wheels on a smooth surface and going slightly downhill. When shifting into forward at idle, there is a clacking sounds during the transition. Shifting back to nuetral works just fine.

      Other Notable Symptoms: There was old oil in the vbelt and when I was tuning the carb, it starting blowing out of the CVT cooling vent at the front of the quad. Made quite a mess. There is positive crankcase pressure due to piston blowby, that I have not decided whether or not I am going to fix (customer budget dependant).  Since the oil was old, much darker than the new oil that is in the crankcase, I am thinking it seeped past a bad seal while it was sitting for years. The oil that was in it when I first got it had gas in it.

      Thoughts: I am thinking maybe there is an issue with the clutch. I worry about the old oil intermingling with the dry centrifugal clutch. I was thinking my next step would be to take the cover off of the clutch and inspect it.

      Let me know what you all think. Any advice and ideas is greatly appreciated. This is only the 3rd quad I have worked on and I have a lot to learn.

      Lorne
    • By Rockbottom
      2008 400 big bear was running now will not start
      have power to relay, in neutral, press start have power to starter but nothing happens starter does not turn
      i have good ground at battery to frame and added ground from wire harness to frame beside batter/ frame ground
      blue white wire to cdi has power with key on
      I believe the neutral lock out is working since is was before i shut it down
      if i put  it in gear and hit the start button with key on the relay does not click or send power the starter
      The 3 wires at the relay have power with key on
      What should i test next?
      thanks ahead
    • By Mister907
      Hi guys, I have a 2004 big bear 400. Last winter while plowing the driveway, I heard a loud pop from the left side of the engine. It continued to run as I looked for leaky fluid, but then died shortly after backing it up and won’t start now. The oil light comes on when I try to start it, no noise or anything else. 
      No blown fuses that I can find.
    • By jeffinotown
      Hey guys and gals. I've been working on my friends 2007 big bear IRS. Unfortunately after 3 different people got their hands on it and only made things worse every time.  After months of finding just crazy problems everywhere. I'm finally at the point we're its almost 100% !!! But I'm getting a short somewhere between the 4xW switch I believe. I managed to by searching the internet like a  fiend, got my hands on an official Yamaha wire harness for the year and make. But I don't have the numbered component list and to be honest. After hours of going through and making everything so it's  easy to reference. If anyone has a picture of the referenced components. I would be forever in your debt. I've spent hours marking up the blown up diagram so it will be easy, for any possible future repairs. Please and thank you. Here's a picture of what i have so far.  Unsealed it in plastic so oil and crap won't spill or get smudged. This damn things worth it's weight in gold.              Thanks Jeff                2007 Yamaha big bear 400 IRS.       YFM40FBW
    • By rjsummer
      Just some friendly advice on new tires. Check with your ATV dealer. 
      There are so many aftermarket sites, Revco, Royal Distributing, Partzilla, and on and on. Even with their “ big sales”, my local Canam dealer’s REGULAR price beat the tire prices of the 3rd party sellers! People often assume the Dealership will cost them more, but I found this not to be true!
×
×
  • Create New...