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Front end Mod - Results
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BLUEBALLER
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Joined: 29 Jan 2005
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PostPosted: Sun Feb 10, 2008 8:11 pm    Post subject: Front end Mod - Results Reply with quote

For those that haven't done the front end mod yet, DO IT!!! Reaper and I put on a few miles today and both of us were happy with the outcome of shaving 2.5mm off the top balljoint. Trail conditions were very good, about 2-3" of fresh powder and the front end was VERY responsive and controllable through the twisty sections. After shimming my Outlaws (3/8" under the whole width of the rubber mount), the skis were working awesome. no darting, no side to side pitching, and with the soft snow, no inside ski lift. I will wait till I get on hard packed trails again to see if this setup really is the cats azz, but today, I was really impressed.

A BIG thank you to IKE for giving me the heads up to this MOD!! Rock On

Anyone else see the same results??
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glmf
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Joined: 21 Oct 2006
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Location: Maine

PostPosted: Sun Feb 10, 2008 8:12 pm    Post subject: Reply with quote

That is good to hear, as mine will be in the lathe tomorrow, and yes thanks to IKE for the info
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Fasttoys
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PostPosted: Sun Feb 10, 2008 8:22 pm    Post subject: Reply with quote

so what is the mod. kinda in the dark here

any pictures?

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cameljockey
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Joined: 30 Dec 2005
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Location: brainerd lakes, mn.

PostPosted: Sun Feb 10, 2008 8:31 pm    Post subject: Reply with quote

please fully explain the mod and add some pics, thanks.
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2008 Nytro RTX
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Joined: 23 Dec 2007
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Location: Guilford,NY

PostPosted: Sun Feb 10, 2008 9:33 pm    Post subject: Reply with quote

Agreed,Please help!
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BLUEBALLER
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Joined: 29 Jan 2005
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PostPosted: Sun Feb 10, 2008 9:35 pm    Post subject: Reply with quote

Last week, there was a post about modifying the upper balljoints. Basically machine them down 2.5mm(0.1") and give your spindles a negative camber. I think they did it to the 09's, so just throw yours in the lathe and machine 'em down. It you don't like it you could always shim it back.

this is where it needs to be taken down.

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Last edited by BLUEBALLER on Mon Feb 11, 2008 9:01 am; edited 1 time in total
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Fasttoys
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PostPosted: Sun Feb 10, 2008 9:57 pm    Post subject: Reply with quote

ill be the retard here and say what is this fixing or changing? or what is this helping
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towerrigger
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PostPosted: Sun Feb 10, 2008 11:12 pm    Post subject: Reply with quote

Well, on the Nytro, when you reach 60-70 mph on hard pack trail the sled will dart uncontrolably. I would describe it a lot like a head shake on a motorcycle. Everyone seems to have different experiences, but this is mine. I will be visiting a lathe soon. Thanks Ike!
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bagadonitz
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Joined: 19 Feb 2007
Posts: 533
Location: Newfoundland, Canada

PostPosted: Mon Feb 11, 2008 8:45 am    Post subject: Reply with quote

towerrigger wrote:
Well, on the Nytro, when you reach 60-70 mph on hard pack trail the sled will dart uncontrolably. I would describe it a lot like a head shake on a motorcycle. Everyone seems to have different experiences, but this is mine. I will be visiting a lathe soon. Thanks Ike!


This is a bang on description. It is a tank slapper without the slapping essentially.

I thought I had this all from gone from mine by widening, flipping the rubber and shimming 3/8". On the local non groomed whooped out trails all that helped alot.

That was until I got on groomed trails for my first time ever this weekend. It was fine up to 45 mph but after that it was nerve wreacking. The fastest I could get on the trail was 70 mph as beyond that the twitching was just beyond bearable.

I might try this myself if others post some good results with it.
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rfabro
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Joined: 01 Dec 2006
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PostPosted: Mon Feb 11, 2008 8:53 am    Post subject: Reply with quote

BLUEBALLER wrote:
Last week, there was a post about modifying the upper balljoints. Basically machine them down 2.5mm(0.1") and give your spindles a negative caster.


Shortening the upper ball joints and leaning the tops of the spindles inwards will give them negative camber, not caster.

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BLUEBALLER
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PostPosted: Mon Feb 11, 2008 9:00 am    Post subject: Reply with quote

rfabro wrote:
BLUEBALLER wrote:
Last week, there was a post about modifying the upper balljoints. Basically machine them down 2.5mm(0.1") and give your spindles a negative caster.


Shortening the upper ball joints and leaning the tops of the spindles inwards will give them negative camber, not caster.


whoops, yes you are correct, I knew that, but I was so excited, I typed the wrong thing. Fixed it. thanks

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Reaper
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PostPosted: Mon Feb 11, 2008 9:12 am    Post subject: Reply with quote

It makes the steering less agreessive and I was extremly pleased with the results. Pitching the stock ski's for doo pilots and the negative camber mod made the front end soooooo nice now ! All the confidence in the world to go fast !
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RSD
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PostPosted: Mon Feb 11, 2008 10:17 am    Post subject: Reply with quote

Isn't it all the play (slop) in the front end that's causing most of the problems? or have you guys fixed that?
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Fasttoys
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PostPosted: Mon Feb 11, 2008 10:27 am    Post subject: Reply with quote

so if this is a good mod how come yamaha hasnt come out with this fix yet ? JW oh and wouldnt this give the ski a diff angle, could cause excessive wear?
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Reaper
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PostPosted: Mon Feb 11, 2008 11:09 am    Post subject: Reply with quote

Look at the camber tilt on the pictures of the XTX, bingo. It works fantastic ! The front is so nice now, predictable, stable, not twitchy anymore.
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