Yes,
check out this website: www.jresport.com

Totally transformed my XTX into a GREAT trail sled.

 

I spent the last 8 years trying to improve the Nytro's performance so it would handle the rough twisty trails here in Western NY. I made shock upgrades, added Curve skis, a Stage II clutch, steering post relocate and installed a 128" Ice Attack track with a skid relocate. Negative camber was also added to the 2008 front geometry with a upper ball joint modification. With all the modifications and a lot of money spent I was able to make it handle and ride very well. Unfortunately I had a ski catch junk under the snow which damaged the front a-arms and spindles. When I bought replacement parts I decided to upgrade to the newer geometry and now regret that decision. The new geometry is no way better than the 08 setup. Even with the Mountaintech trail a-arms installed with the newer spindles it still wasn't better. The Mountaintech arms helped by adding the ability to adjust caster and camber but they can't compensate for the added trail in the newer spindles. Since purchasing the Nytro I've gone from being frustrated with it's performance to being extremely happy with it and now I'm back to being frustrated. So frusterated I pulled the trigger on a new 2015 Viper RTX Se. After making the purchase I drove it out of the dealers parking lot and hit the trails for a 100 mile ride without touching any adjustments. Other than not being a fan of the Tuner skis this may be the best out of the box sled I've ever ridden and without a doubt better than the Nytro will ever be. I now have over 500 miles and still haven't found a need to adjust on it.

 

you can definitely improve the steering drastically, but if you're goal is to get it to track and handle like a cat or doo then it's just not going to happen.

 

I spent the last 8 years trying to improve the Nytro's performance so it would handle the rough twisty trails here in Western NY. I made shock upgrades, added Curve skis, a Stage II clutch, steering post relocate and installed a 128" Ice Attack track with a skid relocate. Negative camber was also added to the 2008 front geometry with a upper ball joint modification. With all the modifications and a lot of money spent I was able to make it handle and ride very well. Unfortunately I had a ski catch junk under the snow which damaged the front a-arms and spindles. When I bought replacement parts I decided to upgrade to the newer geometry and now regret that decision. The new geometry is no way better than the 08 setup. Even with the Mountaintech trail a-arms installed with the newer spindles it still wasn't better. The Mountaintech arms helped by adding the ability to adjust caster and camber but they can't compensate for the added trail in the newer spindles. Since purchasing the Nytro I've gone from being frustrated with it's performance to being extremely happy with it and now I'm back to being frustrated. So frusterated I pulled the trigger on a new 2015 Viper RTX Se. After making the purchase I drove it out of the dealers parking lot and hit the trails for a 100 mile ride without touching any adjustments. Other than not being a fan of the Tuner skis this may be the best out of the box sled I've ever ridden and without a doubt better than the Nytro will ever be. I now have over 500 miles and still haven't found a need to adjust on it.

A. not true

B. the fact that you rode a sled, any sled "out of the box" provides me with enough info to discount.

C. What is true is that the Nytro is more finicky "out of the box" than like sleds from other makes. The ski's alone should be ditched immediately. Depending on what year and model (xtx, rtx, etc) you have provides even further variables. Needless to say it's not a sled for someone who wants to pick it up from whoever they bought it from and just slap it on the trails. It's also a much more rider input sled. The more you ride it like a quad, the more agressive you are with body motion the better it will be.

 

I've been looking at used ones myself. I wish I could try one out with the JRE kit. My Apex handled awesome but it took different skis, sway bar, and shock valving to get it there. I would have no problem buying a Nytro XTX if I knew 100% I could make it handle as well as my Apex did.

I've ridden stock Nytro's and IMO they left a lot to be desired.

 

when I changed out the Fox Floats which I just couldn't get right to GYTR double adjustable shocks that made a difference. I was able to control compression more. And if you happen to need a set, I actually have a fully rebuilt set ready to drop on. Maybe yours has these already , some do. Cheers

 

If $950. is too much, I won't suggest a Skinz Front end kit.
That kit, the Black Diamond steering relocate and WRP seat has my Nytro as fun a sled as it's ever been.
But I guess if you want the easy way out take that mod money and buy a SR Viper.....LOL.....but I think while they handle better....the Vipers have had way more serious downtime problems than I have seen in my genuine Yamaha Yamaha in 9000 miles....never let me down.....never been back to a dealership.

Friend who is a longtime Apex and Vector guy bought a Viper 144 this year and is selling it due to several problems including the latest where the starter took a chit which the repair of takes many hours once his dealer gets the parts.
He is going back to genuine Yamaha with a '16 Vector.

 

You need to elaborate a bit more On A & B. I know the Nytro better than most and what is required to make it handle. These sleds do require a lot of rider input and do run better the harder you push them. The only ski I'd run on a Nytro are the Curves but you can make the older Yamaha single keel skis handle better than any of the dual keel skis if set up properly. I have 10,000 miles on the Nytro and most of them good miles with only a few problems but it was time to move on. I have a love hate relationship with my Nytro so I'm keeping it but there is a reason they stopped production on this model. I held out last year and most of this year thinking the viper wasn't an adequate replacement but I was wrong. The Viper has similar ergonomics and basically runs the same motor as the Nytro but with the lighter pro chassi it rides, handles and overall performs much better than the Nytro. I do have concerns with the Arctic Cat aspect of the Viper but with Yamaha's involvement I think in time we'll see improvements.

 

I feel that if you got a sled from the box and didn't take any time to adjust it or at least get a baseline then... That's all. Also I don't think that the viper is all that much lighter. Now rides better? IDK I don't have enough seat time on one.

Look, how a sled rides and handles on the trails for your average rider is incredibly subjective. Ironically we treat ourselves and every person on this forum and the sport in general like mini tucker hibberts, like everyone here will utilize their sled's capabilities to the fullest. It's simply disingenuous. If you ask local tug hill riders or the new jersey peeps that come up to it, it's the mecca of big bump sled testing analysis or for short M.O.B.B.S.T.A. :thumbsup: Either way i've spent a lot of time up there. I've seen and ridden with riders of all skill levels, people that were much slower than me yet talked much more about how heavy, ill handling my sled was, and riders much better than me that stayed right with me on much older sleds

In fact some of the guys I rode with back then were just talking the other day about a guy named Frank. He rode an old rev renegade (great sled) with some wonky setup that I couldn't get used to (we often trade) and the fkr would ride sitting down through huge chop like it was nothing. The rest of us are standing and bridging every other one and he's just hammering. We were laughing saying, like how... Or another guy I rode with, I could only keep up with him for so long, he used to race quads. I remember him jumping on my phazer (which he loved to do) and just destroying a group of hot shot riders on revs in the twistys. Now turn that scenario around and you'd have a different outcome. It's just incredibly subjective.

Lastly someone just pointed out an old article in a mag where they ran a bunch of real world tests and had run a bump course back in 2011 and the apex of all things was the fastest thing around the track. 0_o There were a lot of good sleds from every mfg that year and that is not the results I would have predicted, but it happened. Who knows why it happened, maybe that Apex was setup different enough to affect the curve, or maybe the Doo cat and polaris were set up like absolute shit. So, like I've said many times over the years. Try sleds out, see if the chassis, and the general way it rides is to your liking and then buy what turns your crank, you know, what you're daydreaming about at 7pm in 70 degree weather in the middle of june.

 

I think the reason the starters are breaking on the Vipers when there were no starter issues on the same Nytro motor has to be the different timing/mapping that was introed after the yam/cat marriage.

 

Lots of different mods out there for the Nytro, lots of different riding styles and on top of that all the different riding conditions. Makes it a bit harder for any of us to give recommendations on mods for an individuals sled. Most would agree that a stock Yamaha Nytro ridin aggressively is quite scary and dangerous. I tried all kinds of things, suggestions from TY and this forum and to be honest none of them made much of a difference. I am an aggressive trail rider riding mostly groomed trails, sometimes rough, sometimes with a foot or two of fresh. I have an XTX and once I installed the JRE Spindle set and a longer set of front shocks and followed the set-up guide on the JRE website I instantly fell in love with my Nytro, it was now the sled I thought I was buying in the first place. Its now as SAFE to ride fast as any sled out there. My friends said I would never get it working,..... now that its kicking their ass's they say ...well you shouldn't have had to go to all the trouble to make it work, all I care about is that its working and now I don't need to take a loss selling it to buy another sled.

 

Not what I heard!! That kit isn't the answer!! Seen reviews from other riders on TY!!!

 

Dang, I'm bummed that there seems to be no one set up or mod everyone agrees that works. I've spent hours reading threads over on TY4stroke and tried lots of adjustments with set up and so far nothing makes much difference.

Why doesn't the Nytro handle good? Is it too top heavy, front heavy, bad steering construction?

 

I got no issues with handling...It absolutely rails corners..:dunno:

where do you live in NY???

 

What set up are you using for your Nytro? I can't find a happy medium between darting at high speed, lifting the ski in the corner or pushing. It's always like too much one direction or another. My buddies aren't super into tuning or anything and when I ride their Cats or Polaris sleds they just work. My one buddy hasn't changed anything on his Indy 800 and it doesn't do anything weird in the corners or straightaways.

 

You have stock skis??? Get a set of curves if you dont. Probably the best ski for a nytro.. I can roll 80mph with 1 hand on the bar..Only darting on either of my nytros is at low speeds 20mph or lower.. If you're in CNY or ride the tug hill we could probably meet up, let you check my set up out and see how it performs..

 

I checked out the Curve skis and they are really spendy, I'd like to try some out before buying a set. I've tried both deeper keel RTX stock skis and the shallower keel stock skis and I like the deeper keel skis. But, railing around corners isn't something I can say my sled is capable of doing. If the trail is bumpy than forget it, my sled is all over the place with the bars moving back and forth and I'm doing all I can to keep it on the trail.

I'm close enough to to the Tug Hill area that it might be worth trying to set up a time to meet. The weird thing to me is I can swap and rude my buddy's indy 800 or my other friends sno-pro and they are a joy to ride down the same trail that gives my Nytro fits. Do you think a set of skis is enough to make that dramatic of a difference?

 

Geez man that sounds terrible. My sled handles better when it's bumpy and rough. Sounds like you're set up way too stiff and its throwing you around like a empty dump truck going 50 over speed bumps. Take all the compression and dampening out and add in one click at a time for starters. I guess I should ask what model you got? Shocks?

 

yea, if your rear end is bucking you around your way stiff..My nytro does very well in the bumps..
the yamaha stock skis suck,..the tuners are better,..but IMO they suck too,..all 4 yamis I have owned, the stock skis were sold very quickly and curves were put on..
I will shoot you a pm next week, I travel the state during the week, maybe I can swing out and give you a hand setting your sled up..

 

A quick fix for the stock skis is to install Stud Boy Deuce bars and shim the rear of the ski rubber with a 3/16" shim. darting will be eliminated and other than a slight push in the corners the handling will be improved. Also, set toe out to 1/2" out, Pull front limit strap one hole shorter and take preload out of the center skid shock to drop center of gravity.

The Nytro can handle well but it usually takes money and time. I rode a Nytro for the past 8 years and at one point had it handling extremely well but with continued efforts to make it even better I lost the handling I once had. I'm returning it to what I know works but also decided to make the switch to a Viper. The Viper has similar ergonomics as the Nytro but with much better handling and ride characteristics right off the showroom floor. The Arctic Cat factor concerns me but overall it outperforms the Nytro in most every aspect. At one point I didn't believe the Viper was an adequate replacement for the Nytro but I was wrong.

 

I noticed the same thing you did with deuce bars, I hated the push in the corners. I Found I liked the deeper keel, stock RTX bottoms I bought off eBay and swaped out for my stock ones. I've got the base Nytro with GYT-R front shocks.

The issues I've found with the limiter strap is as you suck it in, you lose transfer and the steering gets heavier and I don't think my sled rides as well in the bumps. Of course I don't think it rides very well at all compared to by buddy's Indy and Sno-Pro. Since the Sno-Pro is very similar to the Viper, I'm really starting to think my Nytro might be a lost cause. I'm not willing to dump $1,000's into an older sled (front end, skis, rear suspension kit, etc) if a stock Viper already rides and handles better. I was thinking about the one comment about riding down the trail at 80mph one handed and that has to be a freshly groomed trail, perfectly smooth. I know I can't to that on my buddies Indy or Sno-pro on any regular trail and sure as heck can't do it on my Nytro. I'll check my toe out because whenever I go into a corner with washboard or slightly bigger bumps my Nytro is not settled and in control like my buddy's sleds.

I saw some posts on ty4stroke about bent su frames so I measured my upper a-arm to shock distance and it was the same both sides.

 

The bottom line is that the Nytro is not for everyone. It only fits the needs of a few of us that have the money time and knowledge to make it into a capable trail sled. There are definitely sleds out there that require less input to make them fit the needs of most and the Viper is one of them. I have a buddy that purchased a new Etec a few season ago and he never adjusts or makes modifications on it. He's an aggressive rider and always keeps up with no issues. In fact several guys I ride with laugh because they know the effort it's taken to make my Nytro perform compared to what they've needed to do.

 

Man, I have like zero push, even in these late season conditions, I was rock'n..

FX10, Have you checked out your entire front end for play/slop???.skis on spindle play, ball joint play, and a-arm play??

 

My front end isn't brand new tight but it really isn't terribly loose. I can wiggle my skis in and out a little bit but it is nothing major, doesn't seem any worse than my buddies sleds. I jacked it up and the bronze bushings I installed two years ago are still tight in the a-arms. The ball joints feel really good, hardly any play or up and down slop. Basically everything seems pretty normal for a used machine. It's no difference then my friends skeds that handle fine.

 

I have woody's duece bars and zero push. When I say it takes time to hit the adjustments....I mean it takes time. I was fortunate enough to stumble across it in the middle of a trail adjustment. I've probably adjusted my sled 50 times in 800 miles. It's not gonna be just one thing because one adjustment has an impact on something else. I would flip it on its side and pull out the spanner wrench trail side because I refused to ride an ill handling sled. If you're not willing to do that or at least when you get back from each ride, you may never get it and just complain about it. Should it be that difficult, no. But, it is what it is and I couldn't be happier!

 

Also, there's awesome advice on here but everyone is way different in ride styles and blah blah, so I used the forums as a learning tool and did my own. I did try someone's adjustments and it was god awful for me and he said it was on rails so.... Just make small adjustments every few miles. And hit some trail, bumps, powder to try and get a good overal. Good luck.

 

Would you guys mind posting the set ups you are running, how much you weigh, and what type of riding you primarily do? I like to ride rough trails as fast as I can go.

 

Yea buy an Indy so I can dust you and come back to tow you. Lol

 

2011 Nytro XTX
1.5" camoplast track
Hygear torision spring spacers
JRE Trail King Spindle set (best $400 you can spend)
JRE XTX skid kit
OFT steering relocator
Fox Evol 18.25" front shocks (this is a must)
Bergstrom 6" triple points
Stock skis

Sled is awesome on trail, still steers a bit heavy but much better than stock with JRE spindle.

 

2011 Nytro XTX

1.5" camoplast track

Hygear torision spring spacers

JRE Trail King Spindle set (best $400 you can spend)

JRE XTX skid kit

OFT steering relocator

Fox Evol 18.25" front shocks (this is a must)

Bergstrom 6" triple points

Stock skis



Sled is awesome on trail, still steers a bit heavy but much better than stock with JRE spindle.

Wow! You've got a lot of mods on your sled. Did the JRE spindles make a noticeable difference with improving high speed stability?

 

Yes,

If i hadn't found the JRE website I would have sold the sled years ago.