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.

penguin151

03 yam. big bear brake help

Recommended Posts

Hi I am new to the site. I am desperately looking for some help with the rear drum brake on my 03 big bear. Basically I have no rear brakes and I can not get them back. My first problem is I cannot keep the water and mud out of the drum. This thing is JUNK. I have had it apart three times in the last year and I am at my wits end. :aargh: I have just about replaced everything in and around this drum to no avail. I have brakes as long as everything is dry but the first sign of water or mud and thats it for the brakes. I am so frustrated its not even funny. I have even tried leaving the cover off the drum to just let the water in and out at it's own free will. Does'nt work. My buddy has a Wolverine that looks like it has the same axle on the back and his has a rear disk. I would love to convert this. Has anybody done this or know if this is possible? I'm all but begging for some help from someone. This problem has ruined a perfectly good machine. I bought it new in 03 and a new atv is not in the cards right now. If nothing else thanks for letting me vent a little, and you all have a great site here.

Share this post


Link to post
Share on other sites


Hi I am new to the site. I am desperately looking for some help with the rear drum brake on my 03 big bear. Basically I have no rear brakes and I can not get them back. My first problem is I cannot keep the water and mud out of the drum. This thing is JUNK. I have had it apart three times in the last year and I am at my wits end. :aargh: I have just about replaced everything in and around this drum to no avail. I have brakes as long as everything is dry but the first sign of water or mud and thats it for the brakes. I am so frustrated its not even funny. I have even tried leaving the cover off the drum to just let the water in and out at it's own free will. Does'nt work. My buddy has a Wolverine that looks like it has the same axle on the back and his has a rear disk. I would love to convert this. Has anybody done this or know if this is possible? I'm all but begging for some help from someone. This problem has ruined a perfectly good machine. I bought it new in 03 and a new atv is not in the cards right now. If nothing else thanks for letting me vent a little, and you all have a great site here.
Where the dust cover that goes over the rear brake assembaly and put silicone around the cover where it bolts together.

Share this post


Link to post
Share on other sites

Thanks BuckBilly for responding. I have tried a couple types of silicone, in fact the last time i took the dust cover off I had to use a torch around the thing to melt the silicone so the cover would come off. I can't keep the water out.:bangheadc:

Share this post


Link to post
Share on other sites

Thanks again Buck. but I also replaced the dust cover (which this seal is attached to). As far as I know this is the only way to replace this seal, $85 part :( like I said I'm really at my wits end here. I'm real interested in the conversion to a disk but I don't want to try it if it's not possible or hasn't been done b4. PA is mainly a lot of big hill riding and I can't go without a back brake for alot of the riding we do. I can't believe no one else has this problem. I see the 07 big bear now has a wet brake. what gives? I guess I'll just remain forever frustrated with this. My next quad will be a kawai. NO DOUBT

Share this post


Link to post
Share on other sites


I'm not familiar with the Big Bear.Have you looked at other model years rear brake system?If the same machine from a different year has rear disc or wet drum style you may be able to get parts from an atv salvage yard and do the conversion yourself.I think it'd be expensive but cheaper than buying a whole new machine.If you do a conversion;make sure you write down all the info from the donor vehicles.That way it'll be easier to get the proper service parts in the future...

Share this post


Link to post
Share on other sites

Im no Expert on this but I have had some old ATC's that had the Rear Shoes and Drum....in the dust cover there was a Vent to allow the Water to Escape...Seems like these are only Designed to keep the Big Stuff out....Not Water...If you Silicone everything shut and Water gets in there and Stays you will have worse problems......Have you Tried to contact a Dealer/Shop and get any Advice????? Sorry I cant be of anymore help....I never had this problem with the older ATC's....

Is this what yours looks like.....????

0032.Gif

Share this post


Link to post
Share on other sites

BTW....Are your Brakes Adjusted Properly????

How long have you had this machine????

Are the Shoes Good????

is the Drum Good????

Seems to me.....With Proper Adjustment and Everything within Tollernce....You should (once wet) be able to "Ride" the Breaks a Bit to heat them up and get them Working again after going through the Water.....

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 Airborne
      Hey guys been member for awhile and love this group ,kind of lost contact with social media ,i have been so busy working my property and just Racing the calender while winter is creeping in , i even slacked off Fly fishing this season , 
      As we know winter sets in and time becomes available lol, i have plenty of silly “ Quad stories to share as well as just missing the guys here great group , looking forward to winter break and tying some flys lol.     
    • By AtvNewbie
      Can somebody help me on my issues? i bought new stator for my 1987 big bear 350 4x4, (1) it seems that the old owner replace the pickup coil with same color aftermarket pickup coil, i got no idea which pickup coil goes where on 2 spot, new stator have the right colored wire for each pickup coil btw, 
      (2) new stator got brown and green wire connecting  to cdi but my cdi got brown and red, anybody got idea if brown go to brown and green go to red? Thanks
    • By dpacapt
      Has anyone disabled the engine brake on their atv, or is it even possible?
    • By Ed Morris
      I have a 2001 Quadmaster. Bought it from the original Owner. Its in Excellent condition for a 2001. The guy said there was a carb problem when I bought it. It seems like it is not getting fuel. I took off the tank, cleaned it, replaced the gas with fresh Gas, Installed a New Gas Valve. Then rebuilt the carb with a Carb Kit. Started it up and same damn thing, seems like its starving for gas. It will also backfire out the exhaust while trying to accelerate. Now the weird part. I started it the other day and it ran great. We went for a ride and it ran as if nothing was wrong with it. Started it the next day and back to running crappy again. I was like WTF !!! ... Anyone have any ideas of what the problem could be?
    • By dctaz37
      Hello, the ATV doesn't stop anymore so I guess it is time to replace the brakes. Looking for part number and instructions. I think it may have shoes front + back and the front would be hydraulic. 
  • Similar Tagged Content

    • By YamahaBB350
      I have a Yamaha Big Bear 350 and the reverse doesn’t work, it shifts from low to high easily but it won’t go back to reverse. I’m new to this stuff, so I’ll take any help. Any ideas? 
    • By Christopher Williams
      Hello all, 
      i just rebuilt the top end of a 99 Bear Tracker 250 and it can’t get it to hit off of gasoline or starter fluid. Occasionally it will backfire. Right now I’m just trying to get it to fire off without the carburetor like I’ve done a thousand times before with other engines. Usually there is no response, but occasionally I get a backfire through the intake. ISeems like it’s out of time, but I don’t see how that could be possible. 
      Here’s what I know:
      1. compression 120psi
      2. all timing marks are lined up after numerous revolutions. 
      3. Strong spark. 
      4. Valves adjusted correctly. 
      Thanks in advance. 
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...