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BLUEBALLER Expert

Joined: 29 Jan 2005 Posts: 423
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Posted: Sun Feb 10, 2008 8:11 pm Post subject: Front end Mod - Results |
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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!!
Anyone else see the same results?? |
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glmf Extreme
Joined: 21 Oct 2006 Posts: 52 Location: Maine
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Posted: Sun Feb 10, 2008 8:12 pm Post subject: |
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| 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 VIP Member

Joined: 01 Aug 2007 Posts: 178 Location: south dakota
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Posted: Sun Feb 10, 2008 8:22 pm Post subject: |
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so what is the mod. kinda in the dark here
any pictures? _________________ YOU MUST BE FAST... CAUSE I WAS HAULN ASS WHEN I WENT BY YOU |
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cameljockey Pro

Joined: 30 Dec 2005 Posts: 179 Location: brainerd lakes, mn.
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Posted: Sun Feb 10, 2008 8:31 pm Post subject: |
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please fully explain the mod and add some pics, thanks. _________________ 2010 ???? |
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2008 Nytro RTX TY 4 Stroke God
Joined: 23 Dec 2007 Posts: 1310 Location: Guilford,NY
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Posted: Sun Feb 10, 2008 9:33 pm Post subject: |
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Agreed,Please help! _________________ 08 Nytro RTX
144 studs
White C&A Skis
Super Q exhaust |
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BLUEBALLER Expert

Joined: 29 Jan 2005 Posts: 423
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Posted: Sun Feb 10, 2008 9:35 pm Post subject: |
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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. _________________ 2 STROKE 4 LIFE!
Last edited by BLUEBALLER on Mon Feb 11, 2008 9:01 am; edited 1 time in total |
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Fasttoys VIP Member

Joined: 01 Aug 2007 Posts: 178 Location: south dakota
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Posted: Sun Feb 10, 2008 9:57 pm Post subject: |
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ill be the retard here and say what is this fixing or changing? or what is this helping _________________ YOU MUST BE FAST... CAUSE I WAS HAULN ASS WHEN I WENT BY YOU |
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towerrigger Expert

Joined: 19 Nov 2007 Posts: 339 Location: saskatoon,SK
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Posted: Sun Feb 10, 2008 11:12 pm Post subject: |
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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! _________________ It's all fun and games till someone gets hurt
2007 M1000
2007 Grizzly 700 |
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bagadonitz TY 4 Stroke Junkie

Joined: 19 Feb 2007 Posts: 533 Location: Newfoundland, Canada
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Posted: Mon Feb 11, 2008 8:45 am Post subject: |
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| 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 TY 4 Stroke Junkie

Joined: 01 Dec 2006 Posts: 549 Location: Bozeman, MT
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Posted: Mon Feb 11, 2008 8:53 am Post subject: |
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| 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. _________________ '07 Phazer MTX/ '08 Nytro MTX
"When in doubt, GAS IT OUT!" |
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BLUEBALLER Expert

Joined: 29 Jan 2005 Posts: 423
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Posted: Mon Feb 11, 2008 9:00 am Post subject: |
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| 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 _________________ 2 STROKE 4 LIFE! |
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Reaper VIP Member


Joined: 10 Nov 2005 Posts: 544 Location: Winterpeg
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Posted: Mon Feb 11, 2008 9:12 am Post subject: |
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| 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 Extreme
Joined: 19 Nov 2007 Posts: 90 Location: N of 49
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Posted: Mon Feb 11, 2008 10:17 am Post subject: |
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| 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 VIP Member

Joined: 01 Aug 2007 Posts: 178 Location: south dakota
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Posted: Mon Feb 11, 2008 10:27 am Post subject: |
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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? _________________ YOU MUST BE FAST... CAUSE I WAS HAULN ASS WHEN I WENT BY YOU |
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Reaper VIP Member


Joined: 10 Nov 2005 Posts: 544 Location: Winterpeg
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Posted: Mon Feb 11, 2008 11:09 am Post subject: |
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| 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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