2003 zr 900 - HCS Snowmobile Forums

Arctic Cat General Discussion This is a brand-specific forum. Posts on this forum are assumed to be questions aimed at similar model owners, and are not looking for comments of a sarcastic or "bashing" nature. This is a 100% NO BASH ZONE. Please be aware that if you violate this policy you are in danger of losing your posting privileges on this website.The calling out or posting of another members personal information IE phone number or address is prohibited. Posting private messages from Members or Site Staff is against site rules and will be subject to banning from site temporarily or permanently. Full Throttle Speed

LinkBack Thread Tools
Old 11-01-2011, 11:21 PM   #1 (permalink)
Join Date: Nov 2011
Posts: 2
Default 2003 zr 900

Hey guys, i'm looking for information on what i need to bring my stock Zr 900 from 3500 rpm to 4500 rpm engagement
kmurf is offline   Reply With Quote
Sponsored Links
Old 11-02-2011, 07:12 AM   #2 (permalink)
Super Advanced Member
Scott S's Avatar
Join Date: Sep 2003
Posts: 2,357
Current Sled(s): 2003 Arctic Cat ZR9, 2012 F1100 SnoPro
Location: SWO
Favorite Riding Area: Ontario - anywhere it snows!
Age: 49
Riding Since: 1975

There are many variables at play when it comes to set up. Depends on the weights you are running - at idle and the entire combination when underway.

I like the AC orange white primary spring, should be close for engagement RPM however you need to consider things after engagement.
Lead by example, it all begins with you!

Have a great day!
Scott S is offline   Reply With Quote
Old 11-02-2011, 07:36 AM   #3 (permalink)
Super Advanced Member
Join Date: Mar 2003
Posts: 17,254
Current Sled(s): "Agri-vator"

x2 what Scott stated. you can't jump up 1000R's without effecting the shift pattern elsewhere. you will need to change your weights as well. is the machine running the original clutching now?
gdmorning guys
stronger800 is offline   Reply With Quote
Old 11-02-2011, 08:24 AM   #4 (permalink)
Join Date: Nov 2011
Posts: 2

yes its all original clutching, purple spring and 71.5 gram weights in the drive, 55/53 cam, red/white in the driven, i want to put the engagement up as i made this into a 144"
kmurf is offline   Reply With Quote
Old 11-03-2011, 06:15 PM   #5 (permalink)
Super Advanced Member
snochopper's Avatar
Join Date: Mar 2004
Posts: 5,353
Current Sled(s): F-1000/2016 ZR8000 Limited
Previous Sled(s): 77 ElTigre
Location: Rotterdam, NY
Favorite Riding Area: Perkin's Clearing
Age: 57
Riding Since: 1972

You'd prob be ok with a Yellow/white, me personally, I prefer a low engage, that motor is made for it. If you're going to race all day its fine but for better trail manners lower is better.
snochopper is online now   Reply With Quote
Old 11-13-2011, 06:57 PM   #6 (permalink)
Super Advanced Member
chisel-picks's Avatar
Join Date: Oct 2005
Posts: 720
Current Sled(s): 06 xfire 700/ ZR 900 drag sled
Previous Sled(s): 2) 76 merc s/t 440 drag sleds
Location: ohio
Favorite Riding Area: copper harbor
Age: 27

try the maroon epi spring, mine engages at 4100 in my opinion thats more that you will ever need with this stump puller engine
chisel-picks is offline   Reply With Quote
Old 11-13-2011, 09:31 PM   #7 (permalink)
Super Advanced Member
ready2race's Avatar
Join Date: Feb 2005
Posts: 11,406
Current Sled(s): 06" F 7- R
Previous Sled(s): 00 ' ZR 500 96" ZR 580 ,,Z440
Location: P.E.I CANADA
Favorite Riding Area: 660FT
Riding Since: 1970

4500 is pretty high for that torque monster..there is always notched weight option too..your weights are close to mine.. i'm at 4000 so a orange/white should get you close without effecting to much...R2R

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
ready2race is offline   Reply With Quote
Sponsored Links

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 08:12 AM.

Powered by vBulletin® Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.