My neighbor was riding my sp 500 today and noticed that when you get going pretty fast and apply the back brake till the rear wheels start to slide and then let off the brake they continue to slide as if you never let off the brake. Is this normal?

Four_Play aka davidg

 

Four play,are you trying to say that you can get moving pretty good on the Sportsman and use ONLY the rear brake and the quads rear brakes will actuall lock up the rear wheels?Mine dont come close to locking up the rear wheels,ever.====BILL

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yup, after I get on the rear brake enough to make the wheels start to slide they keep sliding after I let up on the brake. They don't totally lock up, but slide like they do when using ebs going down a steep hill.

I almost never use the rear brake alone and probably wouldn't have ever noticed it if my neighbor hadn't rode it and found it.

 

You mean that lever under your right foot is a brake lever? Been using the all-brake hand lever so much, never needed to use the foot one. But, when I went to use it, never had any braking power at all compared to hand brake. Dealer said I had "ice" under the pedal. Funny, I never saw any ice, but it sure worked after it left the shop I'll tell ya.

 

My 99 scrambler does the same thing. I tried different adjustments for the rear brake but it still locks up?

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Toyman, does yours keep sliding the rear tires after you let off the foot brake?

Four_Play

 

I have had 3 Polaris Quads now the first 2 ,a 1994 300 and a 97 425 had very little rear brake. The 99 Magnum 500 I have now has the really nice Willwood brake setup on the rear axle and it is impressive it will lock the rear wheels with very little effort. I got into the habit this past summer of using only the rear brakes via the foot pedal and just had to replace my rear pads, I checked the fronts while I was at it and as expected they had very little wear. As for the sliding wheels. I have found on all 3 of my machines that the rear brakes seem to be a little slow to release for some reason. Its not that big a deal to me though.

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Kevin Gowdy aka Kagey 1999 Polaris Magnum 500

 

Four,
This is just an opinion... but it sounds like the combination of EBS and having a PVT is what you're seeing.
When you stand on the rear brake and stop the rear wheels, the transmission "sees" this as the machine is at a stop. At stop, the secondary clutch has reset itself and waiting to take off again... When you let off the brake, the rear wheels send motion back thru the drive-line, and back into the secondary clutch. Between the EBS, and the secondary clutch as rest, its enough "drag" to lock the wheels down just enought to make you think they are still engaged.
All of this could be considered AFTER you make sure that your brakes aren't dragging... drive it, slide it to a stop without ever letting off the rear brakes. Then, shift to neutral, kill it, step off and get behind it and see if you can push the quad. If you can with normal resistance, then more than likely the brakes are fine..

 

Mudmachine, that sounds like a good explanation of what it's doing. I haven't tried rolling it in neutral, but it doesn't feel like the brake is on when I take off again after stopping. It really isn't a problem unless the brake is sticking because like I said I never noticed it b4 cause I never use it. I may start though if it saves on front brake pads.

Four_Play

 

My rear brakes on my 99 sp500 was slow to release until I started removing the caliber and used a toothbrush with WD-40 to clean it about every fourth ride. It's a pain but this solved the problems and my rear pad life improved, 1,000+ miles on the same pads versus 300.