My son recently side swiped a stump on the rear right. The rim appeared to be bent and had a little wabble.
I let it go untill the brakes started making noise. I thought it may be the bent axle so I swiched the rear rims.
the rim is bent the axle is fine. The rotor appears to be off center of the brake calipers. The rotor is shot.
Any ideas before I buy a new rotor? What else could be the problem?

 

One of the things that sometimes occurs, (at least on mine, anyway), is that the caliper slide pin corrodes, not allowing the caliper to "float", or self aline. Then the brake pads wear unevenly. If you wish to check the slide operation, unbolt the caliper/slide assembly, and see if the caliper will slide back and forth. It is likely frozen if your pads are worn unevenly.

The solution is to get a new slide pin, or clean up your old one, and put new rubber seals on the pin, as well as using the anti corrosion of your choice on the pin. Should you wish to buy the pin or seals, they are not serviced by Yamaha. However, Suzuki uses the same caliper and does service them. If you decide that you need these parts, let me know, i have the Suzuki part numbers and can give them to you.

 

The factory rotor is cheap, mine warped when I rode a short distance with the parking brake on ( 95 Wolverine did not have the rev limiter to prevent this) I found the Banshee aftermarket rotor is much better quality, and is only around 69 bucks.

 

Thanks for the info, I checked the part NO. and the Banshee and Wolverine are the same, I will take your advice.
What about the bent rim? I plan on keeping the Wolverine for a long time. Should I get some after market rims?
They all seem so high priced but a stock rim is not any cheaper.

 

You'll find stock rims on E-bay from time to time. The problem with them is that they do cost an arm and a leg at your local dealer to replace and it is worth your time to go with some aftermarket ones if the budget permits. In addition to a better looking ride, a good set of aluminum rims will lighten the rotational mass compared to the steel stockers.

If I had to do it and were planning on keeping the bike for a while, I'd buy aftermarket rims. One of these days, I'll get pics posted of my machine and all of the goodies. One of the best investments were the aluminum rims with the welded in reinforcement rings. I have yet to bend a rim or crunch the bead area...there are many a scar to prove I have bashed them against the toughest of rocks in Colorado though.

Good Luck.

P.S. If funding is tight, you can take the bent rim to a fabrication shop that has a large lathe (remove the tire) and let them spin it, find the runout and using a press, can usually straighten them out to a point that is visable, but not capable of being felt on the quad. I have staightened a few rims in my days (previous bikes) and kept on riding. Keep in mind, this will weaken the rim and it will be easier to bend next time.

 

And keep in mind, ANY Yamaha 12" 4x4 rim will work, they all share the same 4x110 bolt pattern and offset, except for certain year Grizzlies, so if you find a Kodiak, Big Bear, etc, the rim should fit, just double check the offset. I know Honda 4x4's have the same pattern, there are a few members on the forums using the new Rubicon aluminum rims on their Wolverines, looks pretty cool,too. So you do have options as far as replacement wheels. I love my reinforced aluminum rims, look good, and no bends in a couple of hard years of riding.

 

Hi There,
New to the Forum and I have the same problem with my 96 now.... what are the suzuki part #'s you mentioned for the rear caliper... need a rebuid quick...

 

If memory serves me correctly, this will help.


http://216.37.204.206/wps/Suzuki_OEM...=13&A=112&B=56

 

It comes up with suzuki showing. Can you tell me the year and model.

 

The slide pin is p/n 69305-19A00
The seals are p/n 59303-13A00

The caliper is nothing special----used on z400, lt250, Warrior, and on and on.

I found that my caliper piston was in pretty bad shape-- first (and last) time I left the park brake on overnight, I had a brake fluid puddle on the floor. Caliper got rebuilt with new seals and piston, park brake got removed. Only rear brake problem now is finding pads that last longer than a few rides.[img]i/expressions/face-icon-small-disgusted.gif[/img] I've tried em all............