For support please email or pm Christopher christopher@snowestonline.com



Upgrade to Premium
Polaris: AXYS 2016 AXYS chassis
Reply
 
Share Thread Tools Display Modes
  #1  
Old 01-11-2019, 12:45 AM
glowa glowa is online now
Currently: Not set.
Join Date: Oct 2014
Location: Europe
Posts: 182
Thanks: 8
Thanked 24 Times in 16 Posts
Rep Power: 971466
glowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond repute
Default Clutch weights explanation

Hello, can you someone put a little light on this for me? The 850 comes stock with a 10-68g weights for 7000-9000 elevation. I ride at 3000 ft maximum (which according to manual should be 1-72g). So I am currently using too light of a weights, what are the downsides of this? Should I be getting too high RPMs or what? Engine is deifnitely stronger at 3000 than at 9000 right? Thank you
Reply With Quote


Rate this post: Yes | No
  #2  
Old 01-11-2019, 02:12 AM
sumtinwong sumtinwong is offline
Currently: Not set.
Join Date: Oct 2016
Location: north pole alaska
Basic Member
Age: 40
Posts: 673
Thanks: 191
Thanked 164 Times in 119 Posts
Rep Power: 9592445
sumtinwong has a reputation beyond reputesumtinwong has a reputation beyond reputesumtinwong has a reputation beyond reputesumtinwong has a reputation beyond reputesumtinwong has a reputation beyond reputesumtinwong has a reputation beyond reputesumtinwong has a reputation beyond reputesumtinwong has a reputation beyond reputesumtinwong has a reputation beyond reputesumtinwong has a reputation beyond reputesumtinwong has a reputation beyond repute
Default

yep over revving.
Reply With Quote


Rate this post: Yes | No
The Following User Says Thank You to sumtinwong For This Useful Post:
Dble07 (01-12-2019)
  #3  
Old 01-11-2019, 08:02 AM
Prayn4snow's Avatar
Prayn4snow Prayn4snow is online now
Currently: My 850 crank bearing is still alive :)
Join Date: Nov 2007
Location: Upper Michigan & Alaska
Posts: 1,141
Thanks: 510
Thanked 230 Times in 138 Posts
Rep Power: 17541833
Prayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond reputePrayn4snow has a reputation beyond repute
Default

Quote:
Originally Posted by glowa View Post
Hello, can you someone put a little light on this for me? The 850 comes stock with a 10-68g weights for 7000-9000 elevation. I ride at 3000 ft maximum (which according to manual should be 1-72g). So I am currently using too light of a weights, what are the downsides of this? Should I be getting too high RPMs or what? Engine is deifnitely stronger at 3000 than at 9000 right? Thank you
We could get really deep into explaining clutches but here is a "little light", on your question.
Yes, the motor is making more power at lower elevation (3000ft v 9000ft). With the lighter clutch weights you will quickly over rev and trip the computer to Big Brother protection mode and cause it to fault. You would also be way over the target RPM range and loose power drastically. *See any 2 stroke power curve.
Add the correct weight to get to your target RMP range based on if your sled is stock or has some modifications.

If it has modifications for example a pipe, it should have come with a recommendation on the target window.
Be careful not to add to much weight or you will have the opposite effect on power by Not hitting the target RPM range, again look at any graph of a 2 stroke power curve.
This is the reason I like adjustable weights.
Good luck
__________________
2019 850 AXYS RMK 155"
AXYS 860 BMP RMK 155" 2.6"
Polaris Indy 600SP Wife's sled & 2 kids sleds
2007 Holy Grail Duramax, 2 stage NOS
Legend Battle station trailer
ProCharged 1970 corvette 383 sleeper

Last edited by Prayn4snow; 01-12-2019 at 10:46 PM. Reason: correct
Reply With Quote


Rate this post: Yes | No
  #4  
Old 01-11-2019, 08:51 AM
2XM3's Avatar
2XM3 2XM3 is offline
Currently: 2017 Axys 174 Turbo, 2016Axys 163
Join Date: Oct 2008
Location: Bitteroot valley,MT
Age: 58
Posts: 3,070
Thanks: 815
Thanked 722 Times in 429 Posts
Rep Power: 21474850
2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute2XM3 has a reputation beyond repute
Default

buy AAens book on clutching, read it about 4 times....good stuff
__________________
2013 and 2014 National Superboat Champions
Reply With Quote


1 out of 1 members found this post helpful. Rate this post: Yes | No
The Following 4 Users Say Thank You to 2XM3 For This Useful Post:
CrazyBill (01-11-2019), Dogmeat (01-11-2019), kanedog (01-11-2019), Prayn4snow (01-11-2019)
  #5  
Old 01-11-2019, 11:00 AM
glowa glowa is online now
Currently: Not set.
Join Date: Oct 2014
Location: Europe
Posts: 182
Thanks: 8
Thanked 24 Times in 16 Posts
Rep Power: 971466
glowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond repute
Default

Thank you for this lengthy explanation but it seems I should be getting computer errors, but I am getting none. And I sometimes do full throttle pulls for 20s and more. I have no mods whatsoever, not even exhaust :-)
The exact elevation I am riding is around 900-1200m which is 3000-4000ft, my entire sled is stock and I have stock weights. I am not even sure what RPMs I am getting, I have no time looking at the gauges while passing trees. Any more hints?

Quote:
Originally Posted by Prayn4snow View Post
We could get really deep into explaining clutches but here is a "little light", on your question.
Yes, the motor is making more power at lower elevation (3000ft v 9000ft). With the lighter clutch weights you will quickly over rev and trip the computer to Big Brother protection mode and cause it to fault. You would also be way over the target RPM range and loose power drastically. *See any 2 stroke power curve.
Add more weight to get to your target RMP range based on if your sled is stock or has some modifications.

If it has modifications for example a pipe, it should have come with a recommendation on the target window.
Be careful not to add to much weight or you will have the opposite effect on power by Not hitting the target RPM range, again look at any graph of a 2 stroke power curve.
This is the reason I like adjustable weights.
Good luck
Reply With Quote


Rate this post: Yes | No
  #6  
Old 01-11-2019, 11:14 AM
kanedog kanedog is online now
Currently: Undefeated Mountain Clutching Champ of the World!
Join Date: Oct 2008
Age: 54
Posts: 1,345
Thanks: 716
Thanked 810 Times in 390 Posts
Rep Power: 21474848
kanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond repute
Garage
Default

Set speedo up for rpm and mph. Put a go pro focused on your guage. Review the footage and report back. It is not possible to clutch a sled without watching the rpms. Rpm recall is not good information.

Sent from my SM-G920W8 using Tapatalk
Reply With Quote


Rate this post: Yes | No
The Following User Says Thank You to kanedog For This Useful Post:
aksledjunkie (01-14-2019)
  #7  
Old 01-11-2019, 03:48 PM
glowa glowa is online now
Currently: Not set.
Join Date: Oct 2014
Location: Europe
Posts: 182
Thanks: 8
Thanked 24 Times in 16 Posts
Rep Power: 971466
glowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond repute
Default

someone tld me the gauge with navi can record my rpms, is that true?
Reply With Quote


Rate this post: Yes | No
  #8  
Old 01-11-2019, 03:52 PM
Wheel House Motorsports's Avatar
Wheel House Motorsports Wheel House Motorsports is online now
Currently: is it winter yet?
Join Date: Nov 2007
Location: SW MT
Age: 29
Posts: 29,093
Thanks: 1,320
Thanked 2,456 Times in 1,432 Posts
Rep Power: 21474877
Wheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond reputeWheel House Motorsports has a reputation beyond repute
Default

Do to the dynamic nature of a cvt system often when going down in RPM and running insufficient clutch weight they will just sort of fall off due to lack of load and ability to upshift. You won't necassarily hit the rev limiter or anything drastic, the sled just doesnt pull like it should. Add 2g or 4g of weight and you will feel the sled pull drastically harder.
__________________
Wheel House Motorsports
Wheelhousemotorsports@gmail.com
406-871-0955 Bozeman, MT
Reply With Quote


1 out of 1 members found this post helpful. Rate this post: Yes | No
The Following User Says Thank You to Wheel House Motorsports For This Useful Post:
diamonddave (01-12-2019)
  #9  
Old 01-11-2019, 03:56 PM
kanedog kanedog is online now
Currently: Undefeated Mountain Clutching Champ of the World!
Join Date: Oct 2008
Age: 54
Posts: 1,345
Thanks: 716
Thanked 810 Times in 390 Posts
Rep Power: 21474848
kanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond repute
Garage
Default

Quote:
Originally Posted by glowa View Post
someone tld me the gauge with navi can record my rpms, is that true?
Yes it can. The max recall rpm's do you no good. They don't tell you what the rpm's are during a run. They only capture the highest rpm in a millisecond of the entire time the sled is running.
It is impossible to tune for rpm without watching the tach.

Sent from my SM-G920W8 using Tapatalk
Reply With Quote


Rate this post: Yes | No
  #10  
Old 01-11-2019, 04:00 PM
glowa glowa is online now
Currently: Not set.
Join Date: Oct 2014
Location: Europe
Posts: 182
Thanks: 8
Thanked 24 Times in 16 Posts
Rep Power: 971466
glowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond repute
Default

I am not sure I understand, someone told me I can record the entire run on the navi gauge, then download the file with rpms to a computer
Reply With Quote


Rate this post: Yes | No
  #11  
Old 01-11-2019, 04:53 PM
aksledjunkie's Avatar
aksledjunkie aksledjunkie is offline
Currently: Payin' the dough to play in the snow
Join Date: Feb 2014
Location: Alaska
Age: 27
Posts: 790
Thanks: 235
Thanked 225 Times in 152 Posts
Rep Power: 21474841
aksledjunkie has disabled reputation
Warning You Must be a registered member and logged in to view this response.

Click Here to Register

  #12  
Old 01-11-2019, 05:14 PM
kanedog kanedog is online now
Currently: Undefeated Mountain Clutching Champ of the World!
Join Date: Oct 2008
Age: 54
Posts: 1,345
Thanks: 716
Thanked 810 Times in 390 Posts
Rep Power: 21474848
kanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond reputekanedog has a reputation beyond repute
Garage
Warning You Must be a registered member and logged in to view this response.

Click Here to Register

The Following User Says Thank You to kanedog For This Useful Post:
LongHorn XC (01-11-2019)
  #13  
Old 01-12-2019, 09:22 AM
glowa glowa is online now
Currently: Not set.
Join Date: Oct 2014
Location: Europe
Posts: 182
Thanks: 8
Thanked 24 Times in 16 Posts
Rep Power: 971466
glowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond reputeglowa has a reputation beyond repute
Warning You Must be a registered member and logged in to view this response.

Click Here to Register

  #14  
Old 01-12-2019, 10:49 AM
diamonddave's Avatar
diamonddave diamonddave is offline
Currently: <<In-House PolarisTechnician not as involved in the shop
Join Date: Apr 2006
Location: Thieve Capital AKA Federal Way, WA.
Posts: 4,755
Thanks: 1,188
Thanked 1,530 Times in 891 Posts
Rep Power: 21474853
diamonddave has a reputation beyond reputediamonddave has a reputation beyond reputediamonddave has a reputation beyond reputediamonddave has a reputation beyond reputediamonddave has a reputation beyond reputediamonddave has a reputation beyond reputediamonddave has a reputation beyond reputediamonddave has a reputation beyond reputediamonddave has a reputation beyond reputediamonddave has a reputation beyond reputediamonddave has a reputation beyond repute
Warning You Must be a registered member and logged in to view this response.

Click Here to Register

Reply

Bookmarks

Thread Tools
Display Modes

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 On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Thread — Yamaha Heavy Hitter Clutch Weights and Stock Apex MTX weights Thread Starter — knocksum Forum — Clutch/Drive Train/Belt (Swapmeet) Replies — 0 Last Post — 05-18-2018 03:42 PM
Thread — Polaris Clutch Weights EPI weights and helix Thread Starter — Sledneck9 Forum — Clutch/Drive Train/Belt (Swapmeet) Replies — 4 Last Post — 02-04-2014 03:55 PM
Thread — Once spider is shimed for MTX clutch weights, can one try other brands of weights? Thread Starter — Frostbite Forum — Arctic Cat: M Series Replies — 10 Last Post — 11-06-2010 07:02 PM
Thread — F/S Heelclicker Hammertime weights. Polaris primary clutch weights. Thread Starter — Scott Forum — Clutch/Drive Train/Belt (Swapmeet) Replies — 5 Last Post — 09-14-2009 04:37 PM
Thread — No Explanation Thread Starter — Slick Forum — General Snowmobiling Replies — 72 Last Post — 04-29-2009 09:22 AM

All times are GMT -6. The time now is 04:22 AM.












no new posts