850 gade x under 20mph - REV-GEN 4 - MXZ Performance Trail 129/ Renegade 137 - DOOTalk Forums

Jump to content

 






Photo

850 gade x under 20mph


  • Please log in to reply
45 replies to this topic

#1 Radicalrex

Radicalrex

    Advanced Member

  • Members
  • PipPipPip
  • 317 posts
  • Gender:Male
  • Location:WNY
  • Interests:Sleds,Bikes, wheelers, Toys.
  • Sled:19 Gade X 850

Posted 15 February 2020 - 08:32 PM

In the moguls going slow under 20mph isn’t fun with the clutch engaging, disengaging. Jerky and Bit tiring
For sure. Any fix for it? Thanks
Can’t find the jerky 850 thread....
Lead, follow or get out of the way..

#2 MX-Z Man

MX-Z Man

    Advanced Member

  • Moderators
  • PipPipPip
  • 27340 posts
  • Gender:Male
  • Location:Tug Hill Area, NY
  • Sled:'19 850X, Outlander 650XT, & Defender XT

Posted 15 February 2020 - 08:33 PM

Speed up and smooth out the bumps? :shrug

gallery_5_57_615.jpg

The XP was the most fun sled ever made - but I liked my XR more. The 850 takes it to a whole different level. 

No Need to Freeze-buy a set of these! http://www.coldguards.com/


#3 StargateNH

StargateNH

    Advanced Member

  • Members
  • PipPipPip
  • 187 posts
  • Gender:Male
  • Location:New Hampshire
  • Sled:Renegade 900T XRS (future purchase)

Posted 15 February 2020 - 08:34 PM

Speed up and smooth out the bumps? :shrug

This is what I do on my ATV. Faster is often better .

#4 Radicalrex

Radicalrex

    Advanced Member

  • Members
  • PipPipPip
  • 317 posts
  • Gender:Male
  • Location:WNY
  • Interests:Sleds,Bikes, wheelers, Toys.
  • Sled:19 Gade X 850

Posted 15 February 2020 - 08:36 PM

Speed up and smooth out the bumps? :shrug

Not 3’ers... my knees and family jewels couldn’t take it...


Sent from my iPad using Tapatalk
Lead, follow or get out of the way..

#5 Daag44

Daag44

    Advanced Member

  • DOOCrew
  • 24844 posts
  • Gender:Male
  • Location:South Shore, Quebec
  • Interests:1973 Olympic
  • Sled:2007 1000 SDI

Posted 17 July 2020 - 02:24 PM

Radicalrex, it was good talking to you today. It was a pleasant surprise to hear someone who rides much the same way I do. The low speed on/off throttle jerkiness is something that bothered me on the 2018 Freeride 850 146" that I rode. I found it a contentious issue offline as much as online. I believe - without measuring - that there is a part of it that is in the ignition/fuel timing that we can't do much about, but the magic is in the clutching, gearing and deflection.
 
Here is one thread that addresses the issue. The deflection adjustment is one thing I do differently, but trial and error on the deflection is easy and tells the story.
 

"Snappy" throttle/clutch engagement.
Started By addano, Dec 15 2019 01:06 PM



#6 Daag44

Daag44

    Advanced Member

  • DOOCrew
  • 24844 posts
  • Gender:Male
  • Location:South Shore, Quebec
  • Interests:1973 Olympic
  • Sled:2007 1000 SDI

Posted 17 July 2020 - 02:36 PM

This one is on SnoWest and refers to lowering the engagement down to 2,700-2,800 rpm. I consider this to be a dramatic drop in engagement.

 

https://www.snowest....ad.php?t=443375

 



#7 djm

djm

    Advanced Member

  • Members
  • PipPipPip
  • 13602 posts
  • Gender:Male
  • Location:Fenton, Mi.
  • Sled:09 700HO TNT, 11 Summit 770HO, 850 Sum X

Posted 17 July 2020 - 06:36 PM

This one is on SnoWest and refers to lowering the engagement down to 2,700-2,800 rpm. I consider this to be a dramatic drop in engagement.

 

https://www.snowest....ad.php?t=443375

Had my 17 850 Summit down to 2500/2700 using a qrs secondary spring that just fit over the primary hub.  Still didn't get rid of the off on carburation calibration; but definitely made it better.  Maybe Joey's ramps with the new 100 lb start primary spring, one can smooth it out even more and lower it more.  Also 120 and a 135 start springs too, but finish pressure are lower than the Dalton 100/370.  I initially tried just  shortening the production springs since there were no low force start springs in 17; but that didn't work well for me.   Have to dig through my notes if I can find them to remember what Hotrod Sled shop H5 secondary spring that I used at the time.  But with the lower newer primary start force spring, one should work.  

 

 



#8 dcstewart77

dcstewart77

    Advanced Member

  • Members
  • PipPipPip
  • 109 posts
  • Gender:Male
  • Location:Lakes Region, NH
  • Sled:16 900ace TNT, 2021 Renegade X 900T

Posted 17 July 2020 - 06:56 PM

I think the primary spring on the 2018+ TNTs and Adrenalins engage at a lower engagement. And the 2018+ X and XRS kept the higher engagement spring (from what was standard in 2017)

 

My 2018 TNT is much more docile at engagement/low speeds than friends with 2017 850s.



#9 Xrsphil

Xrsphil

    Advanced Member

  • Members
  • PipPipPip
  • 750 posts
  • Gender:Male
  • Sled:2016 xrs 800

Posted 17 July 2020 - 07:53 PM

If you do 60+ over the whoops they almost disappear 😉

#10 ncapster

ncapster

    Advanced Member

  • Members
  • PipPipPip
  • 9456 posts
  • Gender:Male
  • Location:Just SW of Twin Cities
  • Sled:18 MXZ-X 850 & 18 MXZ Sport 600 ACE

Posted 17 July 2020 - 08:18 PM

Stock clutching? My 850 has never been jerky, even at extremely low speeds like crawling across a gas station parking lot.


#11 Daag44

Daag44

    Advanced Member

  • DOOCrew
  • 24844 posts
  • Gender:Male
  • Location:South Shore, Quebec
  • Interests:1973 Olympic
  • Sled:2007 1000 SDI

Posted 17 July 2020 - 08:36 PM

Click here for the story behind this thread.


Edited by Daag44, 17 July 2020 - 08:38 PM.


#12 Daag44

Daag44

    Advanced Member

  • DOOCrew
  • 24844 posts
  • Gender:Male
  • Location:South Shore, Quebec
  • Interests:1973 Olympic
  • Sled:2007 1000 SDI

Posted 18 July 2020 - 12:27 AM

Had my 17 850 Summit down to 2500/2700 using a qrs secondary spring that just fit over the primary hub.  Still didn't get rid of the off on carburation calibration; but definitely made it better.  Maybe Joey's ramps with the new 100 lb start primary spring, one can smooth it out even more and lower it more.  Also 120 and a 135 start springs too, but finish pressure are lower than the Dalton 100/370.  I initially tried just  shortening the production springs since there were no low force start springs in 17; but that didn't work well for me.   Have to dig through my notes if I can find them to remember what Hotrod Sled shop H5 secondary spring that I used at the time.  But with the lower newer primary start force spring, one should work.

 

I found the thread were some of you were talking about the jerkiness just recently. jcjc is another who didn't like the jerkiness and seems to enjoy the clutch kit. His is a mountain sled, so I don't know how well the kit applies to a trail sled. I haven't lowered the engagement as low as you have, but all this talk has me want to try it. Is it around 10 lbs per 100 rpm?
 
Clutch Tuning
Started By 2020tnt, Jun 29 2020 12:14 PM



#13 mike0chek

mike0chek

    Advanced Member

  • Members
  • PipPipPip
  • 3214 posts
  • Gender:Male
  • Location:New Brunswick, Canada
  • Interests:cold temps, deep snow, banshees
  • Sled:2019 backcountry 850 XRS 10,425 Miles

Posted 18 July 2020 - 03:04 AM

If you do 60+ over the whoops they almost disappear

agreed!  :lol:  :lol:



#14 fred1200

fred1200

    Advanced Member

  • Members
  • PipPipPip
  • 414 posts
  • Gender:Male
  • Location:Muskoka
  • Interests:Water skiing, going fast
  • Sled:16 1200 Blizzard

Posted 18 July 2020 - 09:19 AM

My 19 600R does the same thing, very jerky.



#15 Radicalrex

Radicalrex

    Advanced Member

  • Members
  • PipPipPip
  • 317 posts
  • Gender:Male
  • Location:WNY
  • Interests:Sleds,Bikes, wheelers, Toys.
  • Sled:19 Gade X 850

Posted 18 July 2020 - 12:22 PM

Daag44 thanks for firing back up my thread and posting possibilities to review, and start hopefully In the best direction the first time.
I don’t foresee throwing in the towel on my 850x until exhausting some different ideas that it appears you have provided and influenced.

Edited by Radicalrex, 18 July 2020 - 12:32 PM.

Lead, follow or get out of the way..




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users