I've tried reading a lot and self-educating on the subject.
But it seems the more I read stuff like this....

<div class="FTQUOTE"><begin quote>Originally posted by: sheepdogMSP8117

Those lengthwise belt grooves must be there to match with the groves in the EBS one-way clutch.</end quote></div>

....The more I realize I don't know... and the more I realize I am not making a lot of headway in the limited time I have to study up.

So can you guys maybe explain the EBS to Non-EBS clutch differences in a bit more detail?
Like the mechanical differences and how they relate to the actual performance differences when riding?

I think I understand the concept that the EBS offers engine compression braking and tries to do so something similar to a manual trans.

I thought it did this primarily by just keeping the belt engaged all the time, which my non-EBS doesn't do.

But I'm starting to think there is a whole lot more to it than that?

Like both the primary and secondary clutch somehow react differently, different belt types are needed, and the list goes on...

This leads me to think that I am not getting anywhere near the hold back of EBS, even when I'm keeping my belt engaged?

 

One thing I can say for certain is how my '97 Sportsman acted before and after I had the EBS kit put on. Before: I had to ride the brakes down long steep hills, even when I tried to rev it up to engage the clutch. Maybe I just didn't do it right, but I did what people suggested to me. After: I usually had to give it the gas to go down the same hills, whether it was in high or low. It also slows down a lot better any time you let off for a curve or stop sign.

 

<div class="FTQUOTE"><begin quote>Originally posted by: jumbofrank

One thing I can say for certain is how my '97 Sportsman acted before and after I had the EBS kit put on. Before: I had to ride the brakes down long steep hills, even when I tried to rev it up to engage the clutch. Maybe I just didn't do it right, but I did what people suggested to me. After: I usually had to give it the gas to go down the same hills, whether it was in high or low. It also slows down a lot better any time you let off for a curve or stop sign.</end quote></div>

Perfect start... that I can relate to directly.

Myself, I can feel when the belt is engaged and when it is not, sometimes I can get it back... but in the end, to me it still feels like there is a lot of "loss" there in the clutch. I say loss because I don't want to say it's slipping because it might not be.

Maybe something turns more freely in the clutches, maybe it slips, or maybe it just doesn't really down shift.

In a way I want to say it doesn't downshift and/or hold the lower ratio.

It just seems funny to me that I have OK engine braking at SLOW speed while going down moderate slopes. The quad will even come to a stop pretty well on flatter ground from those speeds.

 

Let's see; you're going down a hill, and you're going too fast, so you give it more gas. I don't know why it doesn't work. [img]i/expressions/face-icon-small-happy.gif[/img] I never liked the idea of using the throttle to try to slow down. You're on the brakes trying to slow down but giving it the gas at the same time, to try to keep the clutch engaged. That just doesn't seem right and it never worked for me, because giving it more gas makes it <u>go</u>, not <u>stop</u>. That's why I'm glad the Sportsman 500 went to EBS as standard equipment years ago. You can use the throttle to go faster the way it was meant to be used. Let off and it stops or slows down, but it doesn't speed up like when you "ride the clutch" down a hill. I can't tell you the techinical details of HOW it works. I just know that it DOES work, and works quite well.

Frank

 

the primary clutch has a one way bushing in the center of the 2 sheeves. unlike a non ebs smooth center piece(hence the non grooved belt). the bushing keeps the belt tight on it and will slow the belt down w/ the engines rpms that drop. its kinda really no more then a friction tpye base set up and the engine copression really has no more then a normal engine breaking to slow it down. it really doesnt have any thing to do w/ performance as well as its nothing to do w/ the engine/ this is only my take opinon on it.

 

frank does the EBS system engauge all 4 wheel when going down a very steep incline like loose rock on the trail are is it only the ADS models that does this ?
That's something i don't know about for sure , thats something my 93' sportman 500 with non EBS didn't didn't have ; and i had to ride the brakes alot on these rocky trail it wanted to run away with me on the extreme grades causing me to ride the barkes alot !

I know the newer models with the ADS take care of this i'm told , but someome told me that the ADS system only has the 2 wheels that AWD only engauges if the front wheels only engauges if the rear wheels start to spins going uphill , is this true ?

Or has polaris fixed this , i would relly like to know if the bugs have been worked out ; like i stated above where i ride 99% of the time the trails are really steep and rocky and with the 93' i had to contantly ride the brakes thanks for the info in advance !.........

 

<div class="FTQUOTE"><begin quote>the primary clutch has a one way bushing in the center of the 2 sheeves</end quote></div>

Exactly. Here is a ahow it works video.

On our Non EBS 97 SP500 I find putting it in low range while going down a long steep hill can create the EBS effect.

 

At times that ebs can be a PITA(pain in the azz) you cant coast, when I was at the dealers the other day I was looking at the new rigs and I see they have 3 positions on the 4x4, is it so you can activate&deactivate the ebs? I think the 3rd position was labeled ACD, can one of you explain? not all of them had it, the one I noticed was on a 800x2 I think

 

ADC is all wheel engine braking,not welcomed on fast gravel road curvy rinding so I guess it has a turn off feature.

 

Wow, I wish I had time to reply to this, but me and the guys are heading out to get muddy. I'll give my input when the ride is over. Hopefully I'll have some pics. [img]i/expressions/face-icon-small-smile.gif[/img]