Hey guys,

First off, no fishing or bashing intended here. My wife and I have new Attak GT's, and our best riding buddy is selling his 02 XC 800 and is pretty much going to go for an FST, not sure on 121 or 136. I hope he does so I can try out the IQ chassis as I have never been on one. I've been honest with him about my Attak: I love it, but I still need to spend some setup time because right now it feels real tippy and heavy in real tight corners and pushes pretty good. Corners over 35 mph are OK, and if I lean forward and to the side the slower corners are better, but still a workout compared to an XC or my old SXr. I'm hoping it is a combination of setup and just being a 136" track.

With the weights of these two sled being similar, how are the FST's in the slower corners? Do they show thier weight like the Yammi does?
Do they have considerable engine braking like the Yammis?
He is curious about 660' and 1/4 mile times. Did they run these at the shootout? His dealer is telling him that the FST is about as good as it gets 0-50. How much better does the 121" do the tighter corners vs the 136"

for one the fst is not available in 136 trim... 121 for the fst iq, 128 for the IQ LX and 144 for the switchback... sled reels in about 140hp and is a strong runner... if you are mostly a trail rider and don't venture off-trail at all the attak and switchback don't really buy you anything... imho, cuz of the weight of the 4s (the attak and fst are pretty close on weight), i'd get the 600cfi, they pull down almost 130hp and weigh in almost 100lbs less than the attak or fst... and the 600cfi is cheaper as well... in the midwest i'm not sold that the turbo buys you much, when the altitude climbs though like out west the fst will stomp on most all stock sleds since it just doesn't lose power compared to what a standard motor will do...

part of the pushing you are experiencing is from the extra 100lbs of weight and part is from the longer track... might wanna try a bit more aggressive ski to get that under control...

The FST is available in 136" just in a 2-up version or in the crusier which is a 2-up with a tonneau cover instead of the second seat...

bonz,

I suppose it's okay, if you don't know which sled you've got, but as many posts as I have made, you might have noticed the 06 FST Touring, with 136 x 1.25 Ice Ripper, in my signature.

This year, the FST 750 (biggest displacement Polaris snowmobile motor), comes in four track lengths:

121" IQ rear
128" M10 rear
136" M10 or M10 ACE rear
144" RMK (IQ Xtra-Lite) with Dual Purpose Rail.

And yes, the 600 CFI also comes in these same track lengths.

The FST is much quieter than the Yamaha, it has a more consistent suspension, the M10 flavors have outstanding comfortable ride, an excellent riding IFS, that also handles very well, with the correct setup and carbides. I ran some very fast, rough trails, up against some 136" Yamaha's last winter, I could stay with them and I had a loaded two-up, theirs were 1 up.

The FST Switchbacks seemed to be among the quickest last year. For MY07, I expect the 121 FST IQ, will be the drag race sled, mostly due to traction and weight transfer on acceleration.

The FST Cruiser, comes with a nice options kit: the adjustable backrest, silver tonneau cover (1up), and the removable 2up seat, heated passenger handgrips and 2up cargo bag.

This amsnow post has some comments on the FST:
http://www.amsnow.com/SNO/CS/forums/29314/ShowPost.aspx

Excursion:

Are you forgetting about the Switchback FST?? Complete with the 144 dual purpose rail?

Or is that what you are referring to as an RMK???

The variations seem to be:

FST IQ - IQ rear 121"
FST IQ LX - M10 rear 128"
FST IQ Touring - 2 up, M10 - 136"
FST IQ Cruiser - 2 up, M10 ACE, 136" with option kit
FST Switchback - IQ lite rear with tipped up rails at 144"

I would think the FST Switchback is the most reasonable comparison to the Attack.

Well, I'm sorry that my terminology was confusing. I didn't mean to be.

Lately Polaris has been calling the uncoupled Xtra-Lite suspension, the RMK suspension, even though it is used on Switchbacks also. The only FST RMK is being made by our boys out west, Hemidude, Jayjay, others.

The Attak GT compares up fairly well with an FST Classic or LX, except for the reduced weight transfer. The MY07 FST Switchback is a good choice also, especially with the tunnel shortened from last year, and continuing with the reduced ice/hardpack turning radius because of the Dual Purpose Rail.

I see what you were meaning - referring to the rear suspension as the RMK suspension rather than the sled itself.

I can be easily confused!! :frech32:

Having owned both manufacturers sleds, I will tell you that so far there is a big difference between how they respond to a problem. The FST had issues, but Polaris owned up to it and fixed them. Yamaha had issues and STANDARD PROCEDURE is to deney that they have heard of the problem before and suggest YOU must be the only one having it even tho you can read about the issues on the web. Yamaha makes a nice sled, and tho I think that EFI is where all the motors should be nowadays, the carborated sleds are simply problematic with fouled plugs and constant adjustments for altitude and atmospheric conditions, etc. Finally everyone talks about horse power, and few talk of torque. Torque is where it is at, and horsepower means nothing if you have to be traveling at 110 mph to get the ponies. There is a huge difference between the two sleds discussed here and that is the ponies and torque are down where you can use them and not in the stratosphere where they have to go to advertise the ponies.

I just don't agree that these two sleds are even close. Motor is better, the ride is way better, once you get it dialed in, and the power is smooth as heck thru the whole spectrum of use....and that ain't at the top of the 10,000 rpm range, you will see a big difference. The only place yamaha has it over the FST is at the pump, and I guess if it is close on even that count with the new program, I will be happy on that score.

Warrantee doesn't mean a thing if you take it to the dealer and they say...sorry, but!!! I read the last account of the AM snow accounting and I can identify with that fellow because I had the same stuff happen and more....100% anti-freeze made the sled over heat all winter til I checked in the spring; Seals going bad, suspension that was terrible and that was before the monoshock disaster, the list is long.

I don't know about the 900 fusions and those boys, I guess they had a good beef, but I can honestly say that so far, I have been impressed with the Polaris origanization admitting an issue exists and not saying....what problem???

no, i knew about the touring, just never occurred to me that a single rider would want one as he was wanting a comparo with the attak gt, very obviously not a touring rig... and no, i rarely pay much attention to sig lines...