What are the operating specs for stock clutching on an 01 ZR 800?

What is engage rpm and full shift out rpm?

What does full shift out mean?------ I'm retarded!


Thanks!

Dave

I was just looking at my brother in laws 01 service manual. Mine is an 02 and comparing. I believe stock engagement rpm was 3200. I think max rpm was 75-7700.

I'm no expert but the way I understand it is There is operating rpm. then there is peak rpm. I believe the two are different. Operating is when you go from a dead dig. What are they at while accelerating. Then there is the peak rpm while at peak mph. Again. Not sure.
I really haven't heard the term full shift out.

Now this might be a really dumb question then.

If my engaged ment is about 36-3800 rpm, and

From a dead stop in the powder, hammer on the throttle, I get about 8100rpm. Is this too high?

I have a clutch kit in it from Balck Magic, but it was for twin pipes. Can't I utilize this for a single pipe too?

Will I burn the engine down going 8100-8300 rpm?

Thanks again,

Dave

Way too high!
I'm not sure what the answer is to your problem. But they claim the sled should operate no higher than 74-7500 rpm. I was running at 7700 when I first got my clutch kit from Goodwin. I had to back off the secondary spring one hole and it brought it down to 74-7500.

I would not keep running it that high.

So how come Black magic says to operate at 8100 rpm?

i'm starting to wonder why mine engages at about 4200.....hmmm
:huh:

Originally posted by Brother D@Feb 11 2005, 03:22 PM
So how come Black magic says to operate at 8100 rpm?
400969


They might be saying that when it's with the pipes. I really don't know.
All I know is stock.

I have a Goodwin Kit. That's it.

What about an 02 800? My brother's jumps to 8000 when in the powder. He has an 02 ZR 800 CC EFI.

That's what mine is. You want to try and keep them around 7500 tops. In my opinion anyway. This is what most others say too.

Yes 74-7500 should be your maximium RPM with a stock pipe, anything above that H/P and torque drops off big time.
BM sets their twin pipe clutch kit up to rev in the area where the pipe set makes H/P which yes is in the 8000+ range.

Thanks for all the replies!!!!!

But what about my brother's ZR? His is bone stock, and it jumps up to 8,000.?


D


By the way Rick-

That Tempa Flow is working perfectly!!!!!!!!!!!!!!!!!!!!! Jetted for -20F and rode on Sat. which was 35F. That's a 55degree difference- plugs were perfectly brown!!!!

I love it!!!

Thanks again for the good deal!!!

Dave

You still want to try and get your brothers down to around 7500 also.

I noticed this weekend riding in the powder, my sled would run good to about 6,000-6,500 about 50mph and then it would lose power. An 800 should not lose power like that in the powder should it? If I had it to 8,000, wouldn't it hold more power?

I also noticed water skipping last year the same thing. Power loss.

Have you checked your power valves. Check cables, and also clean them and make sure they are not stuck. This makes a big difference.

With the 800 your power band goes up and up until around 7500 rpm. From there up it will start to actually drop off. Hope that helps.

Thanks for the advice ZR84EVR,

I don't think it's that, I am pretty religious about cleaning my valves. I also know that the servo motor is working correctly. Cable lengths seem to be good also.

So does it seem suspicious that my power drops off?

D

How much Powder are we talking here?

Like Feet. Or inches.
Unless you are having total hook up, then I don't see why it would not just run up somewhere above 7K.
More than likely you should be spining in powder.
I think you may have some clutching issues.
I'm no expert by any means, but sounds like it's shifting too quick.

In My Opinion, If you don't have a lot of money wrapped up in that kit,
Dump it.
Grab 200 bucks and call Goodwin. They'll set you up right.
Robb

My limited understanding of clutching leads me to believe that the driven spring isn't stiff enough. As the drive clutch contracts, it pulls the sheaves apart on the driven clutch. If driven spring is too strong, it won't let the sheaves move apart. However, if the spring is too weak there won't be enough belt tension causing the belt to slip in the clutches.

What you're looking for is when you hit it the rpm should overshoot by about 200rpm then return back to peak rpm. If this clutch kit is designed to operate the engine at a higher rpm, then the engine must be tuned to provide max power at the new rpm, otherwise your losing out. Check with BM and make sure there isn't some tuning involved with installing this kit. Some kits are clutch/exhaust combinations.

Like I said, I'm far from having a full understanding in this and if someone has a better understanding, please feel free to correct me.