timbersled rear skid questions

[skidooboy]

guys i have an issue i would like to try to resolve if possible. i have noticed the front end of the rear skid has a "sagging" issue. even with higher air pressures (over 100psi) in the front arm shock. to give you some background, i am running an 08 mtx, i weigh 200 with no gear on. i am running the stock front shocks with stiffer springs, (i have the new fox evol X shocks from the shorty se version of the nytro, on the way). i have the timbersled front end. i am running the stock yamaha rails cut to timbersled specs, mounts are in timbersled speced spots at this time (front and rear mounts). i am running the stock yamaha mountain ski and carbides on the sled.

i have the twitchy front end issue that i just cant seem to find a middle ground on. i"ll be the first to admit, i am not a big rider forward fan. when watching other skids just sitting on the sled doesnt loosen the limter straps. when i just sit on my sled, the front arm drops so significantly the straps loosen right up. even pulling the straps to their tightest setting doesn not eliminate the "sag".

i believe this to be one of two probelms, and i am looking for clarification to fix this. i believe it is either A: too soft of a valve stack and the air pressure adjutment cannot overcome the weight of the sled and rider combo.

or B: the geometry of the skid in the stock front holes is contributing to the shock being too soft for the application and collapses the front arm too soon.

the problem i am trying to avoid is not the viewing of the loose limiter straps, it is getting rid of most of the ski pressure on the sled because, the front arm is so low... the front ski shocks hold all the weight of the sled v.s being balanced with the rear skid.

i think this will aid with the twitchiness associated with the nytro front ends, and the heavy feeling steering.


does anyone (including the ts guys that frequent the site) have any suggestions? the front arm shock revavle seems the easiest but, with the high air pressures i have tried... not getting rid of this phenomenon, i have a hard time believing that is all it is. i am almost wondering if the shock is too short for the application, or the stock front mount is the wrong location for this skid set up.

the front arm relocation will be the hardest thing to do, as i have no dimensions on how to relieve the front end of the rear skid in the mount area.

does anyone have any ideas how to help this situation? thanks in advance. ski

 

[skidooboy]

ttt, lots of views no suggestions. need a little help. ski

 

[skidooboy]

crickets????


help?

ski

 

[Ultralord]

???????????????????-- mine did the same thing I put floats on the front and ran 150 psi of air but its a Bandaid. I am going to have www.ftxmotorsports.com take a peak at it He has been real cool but you can see the I told you so look in his face when we talk about the timber skid he wanted me to get a m10 I wanted a liter sled I will keep you in the loop over the next few months I am going over to sandpoint ID this week I am going to pop in and take a look and pose the ?. I am still not super happy with my stuff Had to replace bushings after 300 miles and my fancy bumper tweaked my hood GRRRRRRRRRRRRR.

 

[Ultralord]

the front stock shocks are junk

 

[skidooboy]

TTT, still searching for answers. heard there might be a relocation upgrade in the works from timbersled???

ski

 

[tfrick821]

On a side note, I thought I heard something about a fix for the slider bushings being pushed out, any truth to that?

 

[MTdream]

On a side note, I thought I heard something about a fix for the slider bushings being pushed out, any truth to that?

yes, call bud or Allen, they will hook you up...

 

[skidooboy]

bringing this to the top, still looking. looks like after spending a bunch of coin on this...

i have to yet again drop more into it to "upgrade" to newer specs.


outstanding!

ski

 

[MTdream]

bringing this to the top, still looking. looks like after spending a bunch of coin on this...

i have to yet again drop more into it to "upgrade" to newer specs.


outstanding!

ski

quite honestly, your request for help is confusing to me...

You mention you have stock shocks in your skid...yet you mention you have rails cut to timersled specs...are you running timbersled in rear or stock? If timbersled, why are you running stock shocks? Or are you meaning stock timbersled?

I have never heard of a sagging issue on the front shock of timbersled...and you know me, I am a slightly bigger guy than you, and have NO issues with front shock of rear skid sagging...

probably easier if you call me...

 

[Nytroty]

He has a timbersled skid in the rear and barkbusters in front but he has stock shocks on the front.

 

[Aussie Niko]

I would say its your fox shock having a valve issue. You may have to upgrade to a fully adjustable shock.

Your front end twitch can be fixed, pm me for details

niko.

 

[MTdream]

He has a timbersled skid in the rear and barkbusters in front but he has stock shocks on the front.

So is it sagging on the front shocks? and what confuses me about that, is the sagging @ 100PSI...as stock shocks (unless revalved) are not changeable to 100PSI as he mentions...

he knows me, and can just call...

 

[Ultralord]

I had to replace all my bushings in march after 300 miles. Not to happy about that. I aslo had to run 150 psi of pressure to make my stuff work kind ok.

 

[Thistledoo]

Anybody had a close look at there rear arm again?? Mine is bent again and they are supposed to be making a bigger diameter one especially for the boosted 4 strokes. My bud stopped in there the other day and he saw the proto.....but they havent built any yet Bud are you gonna look after us? The little gussests didnt help it still bent....

 

[KAWGRN]

On the update kit for last years TS rear you get thicker lower cross shafts so that you can drill the new holes further foward on the rails making the shock Wayyy stiffer. I moved mine foward about an inch and now can run 80psi instead of 125psi CALL Alan

 

[KAWGRN]

Anybody had a close look at there rear arm again?? Mine is bent again and they are supposed to be making a bigger diameter one especially for the boosted 4 strokes. My bud stopped in there the other day and he saw the proto.....but they havent built any yet Bud are you gonna look after us? The little gussests didnt help it still bent....

What part of the rear arm is bent the upper or lower where the shock goes through?????????

 

[skidooboy]

to clarify, on the front end, currently i have a barkbuster front kit with stock yamaha oem shocks and stiffer springs on the sled now. i have in the garage uninstalled and untested the float X shocks off the se short track sled. these will go on for this season.

the rear suspension is timbersled with their stock off the shelf (for them) floats front and rear (on the rear suspension).

my problem is when the sled sits under its own weight the rear suspension front arm, and shock seem in the wrong position, or wrong valving because, the limiter straps (even when tightened further than timbersleds recomendation) will loosen up (almost collapsing) the front arm, under my weight when i sit on the sled, even with over 100 psi in the front arm shock.

i believe this transposes into more front ski pressure because the front arm on the rear skid does not fully help the front suspension shocks do their job. so, the front suspension shocks hold most of the weight of the sled, forward of the pivot point of the sled giving you a heavy nose, heavy steering.

this compounds the "twitchy" front end the nytros have.

all i am trying to do is get the sled to be more compliant when i am trail riding to the play areas. and before i get the "it is a mountain sled, not a trail sled"... EVERYONE has to ride some trails to get to their play areas wether close to home or far away. and frankly, this sled scares the **** out of me if we are riding the trail faster than 35 mph no matter what the conditions are.

off trail it is great, compliant, and works for me. i am just trying to get it to work better when i need to ride the trail, to make the sled more complete, and comfortable for me.

or help find someone to give me 8500 cash and i'll find another sled to start messing with. ski

 

[Thistledoo]

What part of the rear arm is bent the upper or lower where the shock goes through?????????

Upper.....the arm that bolts too the drop brackets. Got 4 in our group and there all bent. I looked at evey timber yammy at yamafest and counted lots that were bent....most guys prolly dont even know....its enough though you cant get the cross shaft out

 

[motojunkie101]

Thats good to know! when I was up there I think I had 6-8 rides on my timbersled and I beat it pretty hard on the way back down to see what it would take through the whoops.

I was doing 30-40 and it was sucking them up no problem, but now I'm going to have to check out the rear arm when I go home this winter.