[Rocketman]

What primary springs are you ZRT guys running....assuming stock clutches, what spring are you running to get the engagement ~5000 rpm? I need poundage specs...colours won't do me any good. It is for a 97 ZRT 600.

 

[Rocketman]

Come on..you guys are holding out on me...was it something I said?

 

[toydoc]

Yep!

 

[Fastcat800]

Yellow/green is stock-134/264, the only stiffer cat spriong is orange at 120/270.  I would think you need to get up close to 300 to get it at or over 5000 rpm.

 

[Fastcat800]

I was wrong about those springs, they are Comets.  The stock Cat spring is yellow/green at 114/267 next is the  yellow/white at 122/285 and an orange/white at 143/290.

 

[Darryn Duncan]

My 95 zrt800 has yellow and red springs. As far as I know they are stock. I couldn't tell you what the poundages are.

 

[Rocketman]

ok...thanks. I guess I will tell him to get a yellow green then..because that spring had his engagement at about 5000rpm. Thanks alot. I just wanted the weights as a reference point.

 

[toydoc]

Silver 85/169
Red 74/222
Yel/Grn 114/267
Purple 121/240
Yel/Wht 122/285
Orn/Wht 143/290

HPE:
Blk/Blu 155/285
Orn/Grn 170/300

 

[phazerhater]

Rocketman, in your previous post you said he thinks that his weights may have been shaved and notched.  If that is true, he will still need a stiffer primary to keep his engagement up.
As I said before, the HPE orange spring(similiar to the cat orange and white spring)would be better IF he does in fact have notched weights.  Just something you may want to have him check....

   If nothing else, use the yellow and green and put stick weights back in.

 

[Rocketman]

Yeah..he thinks they are shaved and notched....but I believe they are stock. Anyway, he has a yellow/green in there right now, so that is prbably what he will put in. Thanks guys

 

[SLDRDR]

You can buy notched weights from cat, i think the stock weights in that are susposed to be notched though.