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Discussion Starter · #1 ·
I put the Simons CPR clutch kit in tonight. And I hope I did it right.
The Hevy Hiter primary kit came setup by Simons for my specific weight.
The secondary helix and spring was also put in but I was not sure what hole to put the spring in. So I put it in the same one the old spring was in. The center one. Have any od you installed a CRP clutch? If you have what hole did you put the secondary apring in?
 

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Try it right there and adjust after running as the springs will lossen up a little and will likely be right on. We had one on our 03 and it rocked!!! Still one of the fastest 900's around here in drags and top end. Great setup!!

Good luck!

Jester
 

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Discussion Starter · #3 ·
Next month I'm going to get the powerup kit from Simons. It should really rock with the combination of the two kits. With the clutch kit it puts 10 more HP to the track. And with the Power up kit it adds 10 more HP to the engine. Thats 20 HP more to the ground. It should be hard to beat, and it will still look totaly stock.
 

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Discussion Starter · #4 ·
I just called Simons to make sure I did it right and he said that for the ZR 900's the secondary spring has to be in the last hole to make it all the way tight. It's a good thing I checked.
 

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Just checked it out and the last hole is correct. My bad! I was thinking about my zr8 as it is in the middle. Hold on and have fun with that bad boy! Wait till the perma grin happens!

Jester
 

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I'm curious to see how it runs too. For the cost it should run good.. I usually do my own clutching, I'de like to see how it compares..
 

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Discussion Starter · #8 ·
From what every one, and I mean Every one said on this site, that the Simons CPR clutch kit is the best hands down. I expect good things from it because the stock clutching was so bad that a ZR 800 with a MB single pipe and a BM clutch kit was spanking my as last year with my totaly stock setup. I cant wait to se how this works up agains his sled now!
 

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Originally posted by bly123@Sep 27 2005, 08:24 AM
Next month I'm going to get the powerup kit from Simons. It should really rock with the combination of the two kits. With the clutch kit it puts 10 more HP to the track. And with the Power up kit it adds 10 more HP to the engine. Thats 20 HP more to the ground. It should be hard to beat, and it will still look totaly stock.
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Is the kit you installed calibrated for a stock ZR9 or for one with the Power-Up kit installed? If not, adding 10 more ponies with require re-clutching. I'm sure Jeff can/will advise the corrections required.
 

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IMHO................you've already got the stuff that will really make a difference, save your money and fine tune the clutching from there.
 

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Discussion Starter · #11 ·
I told Jeff I was getting the Power up kit at a later date so I think he set it up for that. The only thing is that when it comes to fine tuning it I have no idea how to tell if it could be working better ot not. The clutch that is.
 

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Originally posted by bly123@Sep 29 2005, 10:05 PM
From what every one, and I mean Every one said on this site, that  the Simons CPR clutch kit is the best hands down. I expect good things from it because the stock clutching was so bad that a ZR 800 with a MB single pipe and a BM clutch kit was spanking my as last year with my totaly stock setup. I cant wait to se how this works up agains his sled now!
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Not everyone, I had the kit and wasn't impressed, it worked well but there are basic setups that do work just as good, Don't count on getting spring rates from jeff in case you want to try something different cause he won't tell you, I found it hard on belts. MAKE sure you are studded cause his setup is for studs, I told him I didn't run studs and he sold me the kit then later asked to help adjust the clutch and was told I neede to stud my sled. Also a guy here bought a kit for an 04 f7 and it ran well but he changed the helix and spring and made it work alot better. I think the HH weights get your most benefit.
 

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Originally posted by bly123@Sep 30 2005, 08:58 AM
I told Jeff I was getting the Power up kit at a later date so I think he set it up for that. The only thing is that when it comes to fine tuning it I have no idea how to tell if it could be working better ot not. The clutch that is.
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Find someone who has a sled that runs well against you and test with him and you only do changes. You'll find out what works. Did his kit come with a 62/52?, weights set up around 80-81 grams. Black primary spring (short) I think it's a black magic but he wouldn't tell me.
 

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Discussion Starter · #14 ·
It is the shorter spring (black) but it's not like the BM because I have the BM kit and compaired it to the BM. The helix is stamped 62-54 and the wieghts are Heavy Hitters. It is not like the BM. It is configured for a 192 studd track with an M-10 Suspension and 250 LB rider.
 

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Originally posted by bly123@Sep 30 2005, 08:02 PM
It is the shorter spring (black) but it's not like the BM because I have the BM kit and compaired it to the BM. The helix is stamped 62-54 and the wieghts are Heavy Hitters. It is not like the BM. It is configured for a 192 studd track with an M-10 Suspension and 250 LB rider.
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I was told by someone it was a black magic but jeff would not tell me, wow with your weight and a 62/54 your going to need the last hole to try and get the revs but for a shorter run it might work ok.
 

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Discussion Starter · #17 ·
I do agressive trail riding. 95% of the time. I only open it up on lakes or where ever safe to do so. As long as I can hit 110mph on the lake and have very snappy instant hard responce on the trails I'll be very happy. I definatly have enough studs in the track. I still don't know how to ajust the clutch if I want to fine tune it. I mean I know what to do, change the weights, change the spring that kind of stuff but I don't know what to change it to to improve performance, if I don't like the way Jeff has it set. Do you know what I'm trying to say? I guess I have to call jeff and he will tell me. I have read on this site that some didn't like the setup and Jeff told him what to change and then it rocked.
 

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After reading about a ZR 800 kicking your ass.

A question comes to my mine.

Is your crank straight and in phase. We ride with 5 big twin cats and all of them had cranks coming apart. Sure fire sign is loss of top end.

Maybe a good thing to check. I know once mine was straight and welded my machine turned into a rocket.

Best of luck Rcat
 

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Discussion Starter · #19 ·
I never had it checked but the engine runs great. The stock clutching sucked. It had a top speed of 110 mph and pulled out of a turn like crazy. But my buddy's ZR 800 had a BM single pipe and a BM clutch kit and his was more responcive and has more agressive acelaration. It's all in the clutching.
 

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All I am saying is there is a problem with ZR 9 cranks coming apart on the mag side. If you pull the reeds on the cylinder and look into the bottom end you will see if you have a problem or not. What you hope you do not see is the crank weight closer to the mag side. It should be in the centre. Om my sled the counterbalance weight was actually rubbing my cases.
 
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