Quantcast
Jump to content

  • Do you own an ATV? Join our Forum!

    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.

Scott Matthews

1989 Big Bear 350

Recommended Posts

Just picked up a 1989 Big Bear 350 for $250 CAD. Bike was running but lost crank and spark. They've installed a new coil, a couple relays, and installed a Ford starter solenoid in place of the original. Now it cranks but has no spark so they sold it to me. Does anyone have a wiring diagram for this bike so I can test some wiring. Also any ideas as to direction to head would be nice. Lots of things have been hacked together so I know it probably wont be to easy. The ignition switch was replaced with a toggle switch, I already mentioned the Ford solenoid which 1 of the small wires was not re-installed, and a diode or something was removed from the oil temp sensor wire. I'm sure I will find more so a diagram would be amazing.

Share this post


Link to post
Share on other sites


Great bike. You should be able to find  a manual in the download section but will only be able to do so by having 10 posts in the forum of contributing or by being a paid member. 

Now depending  on how much you want to get involved with this bike you can find parts online via eBay and used parts dealers.    Best to go back to the original solenoid and wore it up properly including the ignition switch all of which are cheap enough to replace.     

Share this post


Link to post
Share on other sites

Yeah that is the game plan. Found the solenoid on Amazon. Ignition switch at RM Stator, and the diode was in a bag with a bunch of hardware. Also while browsing through posts u stumbled upon a link to a service manual that looks correct, but will definitely download once I hit the 10 posts mark.

Share this post


Link to post
Share on other sites

Off the top of your head do you know what components might allow it to crank but disable start? The reverse light is always on, and I am not sure about whether brake switches etc are working.

Share this post


Link to post
Share on other sites

If the reverse light is always on it’s possible that the neutral safety switch is bad. That will lock the starting circuit out for sure. 

Share this post


Link to post
Share on other sites


Perfect. Do you happen to know does that just stop spark pr does it also stop cranking? Hopefully I wi have a bit of time Monday to mess around with it and see what's going on.

Share this post


Link to post
Share on other sites

It locks out the start/cranking. Find the wires at the switch which should be located someplace around the shifter inside the engine and have two wires coming out and unplug them one at a time One of them should be green the other red. Not 100% sure of the color code. But one of them at least should be red.  When they are unplugged you should loose the reverse light. Try to crank it then. 

Share this post


Link to post
Share on other sites

Awsome thanks. It does crank the way it is now, just no spark, but I will look into that. I think I found the correct wiring diagram so that will help me out for sure.

Share this post


Link to post
Share on other sites

Take a few different color high lighters and a ruler.  Color code the wires with the high lighter.  Put the ruler on the paper where the wire is and run the highlighter along the wire so it’s neat.  It will help out big time, and study it before you tackle it.  

Share this post


Link to post
Share on other sites

Fore sure I've read over it pretty well. I am a mechanic by trade. Worked at a Dodge dealership. Wiring diagram is pretty simple compared to a new vehicle that's for sure. I appreciate all the help! Hopefully tomorrow when I get to the shop I'll be able to spend a few minutes to figure it out.

Share this post


Link to post
Share on other sites


So the stator is confusing me a little. The wiring diagram doesnt exactly match up. I pulled the stator out to check it out and mone only has 1 pickup coil in it. When I look up the stator on RM Stator it shows 2 pickup coils for my stator. I've double checked the VIN and it is an 89, although if I look up a 1990 the stator looks more like mine.

Share this post


Link to post
Share on other sites

Could have been a change over period and may have to go with the 90 but only if it’s an exact match. “Not more like mine” that won’t work. You have to be sure.  

Share this post


Link to post
Share on other sites

Well it looks the same in the pictures, but it is really hard to tell. Obviously I can tell that it does only have 1 pickup coil like the 90. But dont have a way to know if it measures the same, or if the resistances are the same. I've emails RM Stator to see if they have any insight.

Share this post


Link to post
Share on other sites


Sorry had no time today, I'll try again tomorrow. I did hear from the guys at RM Stator. They said that it may be a 1990 style stator in there. They do list one stator in their 1990 listing that says from 88 to 93 or something like that.

Share this post


Link to post
Share on other sites

I had a feeling. Whenever there a change over period things kinda get crossed over to the newer models at the end of an era if you will.  It’s actually a good thing for you.  Ok cool. Let us know how you make out.  

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 John Brucato
      Hi all new to the sight haven a problem with my 1988 kawasaki bayou 220 it ran then just died when out one day get gas but no spark any info will help I'm new to the ATV got it used and ran like a champ but don't know where to start when it comes to this
    • By Christy Miller
      Need a wire diagram for 
      99 big bear 350 4x4 can anyone help I have no spark my roommate drove it ended up losing the battery and it grounded out a.wire in the middle of harness was burned to BEAR any suggestions ty
    • By michaelnewell
      I took front brakes apart recently and found pistons frozen in calipers. Havent been able to find cheap calipers for this bike
    • By KotaGman
      My bear big fires up with the pull start fairly easy. My electric start worked fine but now doesn’t even try. I bought a new battery and the same. The odd thing is, when I start it up at times, the neutral or reverse light will light up at times... depending on if it’s in neutral or reverse of course... wondering if anyone knows where I should replace? 
      IMG_1575.MOV
    • By Denis Lanthier
      Hi All,
      I have a 2004 Yamaha Kodiak, which has taken me to many remote places and hauled lots of game.  I still love it after 16 years.
      Lately when I go to start it using the starter, sometimes it clicks and kills the power in the display.  Lights don't work, nothing works and I end up having to unplug the battery, wait awhile, and replugging the battery ends up giving the power back.   Using the winch will sometimes kill the power as well.
      Battery is new, all fuses are ok, I'm at a loss.  I can start it with the pull crank and it will work and so will the lights.
      Any insights or advice would be appreciated!
  • Similar Tagged Content

    • By Christy Miller
      Need a wire diagram for 
      99 big bear 350 4x4 can anyone help I have no spark my roommate drove it ended up losing the battery and it grounded out a.wire in the middle of harness was burned to BEAR any suggestions ty
    • By KotaGman
      My bear big fires up with the pull start fairly easy. My electric start worked fine but now doesn’t even try. I bought a new battery and the same. The odd thing is, when I start it up at times, the neutral or reverse light will light up at times... depending on if it’s in neutral or reverse of course... wondering if anyone knows where I should replace? 
      IMG_1575.MOV
    • By gareth leifheit
      Ive got a Big Bear 350 4x4 that has been sitting for a couple years. It was put away running but now the pull start wont move and the starter wont turn it either. Any ideas what I can lube up or bang around to loosen it up? Thanks
    • By John Victor
      My father-in-law gave my boy a 1999 350 Big Bear. It's been sitting in a barn for a bunch of years. It runs great! My boy has been riding a couple weeks now and it has developed a squeal coming from the front end when you get off the gas at speed. No noise during acceleration. At first I thought brakes. I took it for a ride and I don't think it is the brakes. I feel it is the front prop shaft U-joints, front differential or one/both axles. I pulled the fill plug on the differential and I can't find anywhere how much gear oil should be in there. My gut says up to the fill opening. It doesn't have a manual. It's wet in there, just don't see any gear oil.

      #1 Should I fill the differential with gear oil up to the fill opening?

      #2 How do I check or know if the u-joints are bad? That looks like a "Big Bear" of a job if they don't need to be replaced.

      #3 What else could it be? I don't think it is the front bearings. I jacked the front wheels off ground and no play in the right wheel. Very little play in the left wheel, looks like the lower control bushing is where that play is coming from. The rubber CV boots look original but all still intact. Wheels spin easily without any noise.

      Thanks for any help!
    • By NoDeer
      I have an older (1987) Yamaha Big Bear 350.  I have arthritis in my thumbs.  Is it possible to replace the accelerator with a motorcycle accelerator (ie. twisting the handgrip)?  This would be more comfortable for me due to the arthritis.
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...