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2014 LTX-SE suspension


Went with the lighter torsion spring from Hygear and then went with the Axis shocks, wow what a difference they made for this 240# rider...rode my buddies Axis Pro-X 137" Polaris that he raved about and my Viper is just as good in the studder bump as well as the big Moguls too...stays true in the rutted out corners too...best suspension i have rode
 
After reading all the above knowledgeable info. on the 2014 Viper I did some research on my options for my very stiff riding 2014 LTX. Cat soft spring $97 something, on back order. Dealer along with his Yamaha rep. say original spring is 17.5 lb. and 2017 Viper spring is 15.5 lb. ( read a bit different no. some where on this forum). 2017 soft spring does not have part no. as of this time but rep. says $95 each.
I weigh in at 215 without gear. Adjuster on my sled is on #1, softest setting. Very little to gain by building a new adjuster. Opted to move/lower the plastic sliders on long end of existing spring. Movement is limited due to cut outs in rail. Using the bushing for template, setting it above the rail rib I drilled hole the only place where there is some rail support. This allows the long end of the spring to be approx. 2 3/8" softer.
Just came in from approx. 100 mile rough trail ride, much, much better. Could easily live with the rear suspension now although may send shocks for revalving in off season.
Now my front end could be a bit softer, but front spring settings are about as soft as possible without loosing ski control. Limiter strap up one hole, front suspension spring set just touching lock nuts.
Any suggestions ?
 
Just so you guys know I disagree with the lighter center shock spring in both the 16's and now the even lighter true dual rate in the 17's. Many have found the heavier 160/260 dual rate #2704-229 to work better transfer wise and ride wise since with this spring you will use less preload to get the same light front end feel. A heavily preloaded spring has more "stored energy" than a lighter preloaded spring. This means the shock has to control the stored energy. My valving works with either and what spring works for one may not work for other rider though. To me the key is valving especially in 14 and 15's.
 
Last edited:
cannondale27 said:
Many have found the heavier 160/260 dual rate #2704-299 to work better transfer wise and ride wise since with this spring you will use less preload to get the same light front end feel. .
Click to expand...

Thats interesting. I assume its roughly the same price as the other spring? If so I would be more than willing to give it a try as well.

Is that the right part number? Its not returning as a valid # when searching AC dealers fiche
 
Yes same price usually under $30. This spring idea was Stingrays. The offtrail guys really benefit. I guess since I like the big bumps on trail it kind of same benefits. Studroes did not like this stiffer spring but haven't heard whether his adjusting helped or not. So its not for everyone I guess.
 
cannondale27 said:
Yes same price usually under $30. This spring idea was Stingrays. The offtrail guys really benefit. I guess since I like the big bumps on trail it kind of same benefits. Studroes did not like this stiffer spring but haven't heard whether his adjusting helped or not. So its not for everyone I guess.
Click to expand...

Hopefully will have a chance in the next few days to try mine again. Started with roughly 2 turns of preload and it felt very harsh to me. Gave it two more turns but have only ridden around some in the field and haven't got on any trail with bumps so can't say anything yet on the ride but I did notice it definitely has a lighter feeling front end and pops the skis up easier but that won't be enough of a reason for me to keep it in. One thing that has crossed my mind is that when I had my shocks setup by monster that I specifically remember talking to him and saying I would be using the stock 135# spring so valving may possibly not be working well with the spring? Just a thought. For me I feel an ideal setup would be a 135/160 dual rate setup or something similar. The 2704-229 did feel good on big hits with 2 turns of preload on the spring, just didn't like it anywhere else on the trail. I'm sure my stock 135 spring has lost some pop but the sled rode so phenomenal in everything but big bumps so it's going to be hard for me to get away from the nice plush ride just to have a little better setup on big bumps. When trails get that beat up I'm not riding that hard anyways.
 
I finally received all my parts for this conversion. Pulled the skid out, installed new slides, greased all zerks, installed new cat dual rate FTS (p/n 1704-736) and new 2017 Yamaha torsion springs (p/n 8jx-g7474-00). The one thing that I noticed is that the new torsion springs look identical to the old ones (Same diameter and angle). I don't have a micrometer to measure them but they sure do look the same to me. The label on the packaging says that it's a 16.5 lb spring. Does that sound softer than stock? I sure hope it makes a difference in ride quality or it will be a waste of time and money. I jacked up the idler wheel bearing putting it back together so I have to get a new one b4 I can get it together and ride it.
 
trailtamer said:
I finally received all my parts for this conversion. Pulled the skid out, installed new slides, greased all zerks, installed new cat dual rate FTS (p/n 1704-736) and new 2017 Yamaha torsion springs (p/n 8jx-g7474-00). The one thing that I noticed is that the new torsion springs look identical to the old ones (Same diameter and angle). I don't have a micrometer to measure them but they sure do look the same to me. The label on the packaging says that it's a 16.5 lb spring. Does that sound softer than stock? I sure hope it makes a difference in ride quality or it will be a waste of time and money. I jacked up the idler wheel bearing putting it back together so I have to get a new one b4 I can get it together and ride it.
Click to expand...
They look same till broke in. Angle will change.
 
I remember reading that thread. I'm still frustrated with this machine due to the fact that Yamacat let this sled leave the factory with suspension like this. Heck, they let it slide for another year. What in the heck where the test riders thinking? I wouldn't buy another LTX, maybe an RTX or XTX.
 
Well I've got 200+ miles on the 229 spring now and it can't come out soon enough. Have rode on a huge variety of trails and it hasn't felt good yet. Started out with a little preload, then went a little tighter a few times, at 5 turns of preload it keeps getting worse and worse so this definitely isn't the spring for me. 95 miles of Saturday afternoon tug hill trails today and I feel like I have broken ribs and it hurts to even sit. Can't wait to get the 135# spring back in..even in rough trails it's still very plush and handles great, I can't ride 60 mph on rough stuff and hardly feel a thing. If I go over 30 with this spring it is down right dangerous. Maybe shock valving isn't lining up with the 229 spring where as I know the 135# spring is setup for that, but either way it's coming out tonight and hopefully I can roll out of bed tomorrow and get suited up to enjoy all the snow we're getting.
 
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