Just looking for some ideas here guys. I have on '06 C7 standard, studded with tunnel protectors. I get a pretty good vibration near my feet as soon as I get near 65 mph up until I top out at about 95 or so. I have no idea what the hell the problem is. Its a scary feeling thinking that my sled feels like it could fall apart. I was on a trip last year and it did it the whole time. I brought it to my dealer and they couldn't find anything. Going to Gaspe next week and I would love to have the problem solved by then. I don't want to get there and have the problem. If I wanted to vibrate all day I'd just go to a cheap hotel with a pocket full of change!!! No need to have an $8,0000 vibrator!!!! Any thoughts or ideas would be greatly appreciated. Thanks and happy trails...

Flip the sled on its right side and take a look at the front cross shaft where the lower front shock eyelet attaches to the skid,I bet the track rubber nubs have worn a pattern into the bottom side of the crossbar....

howze your hifax? driver nubs can then rub as duality says, kinda like a high freq buzz?

Had the same issue with mine... baaaaaaad vibration. I have a 06 crossfire sno pro. you problem is bearin gs on your main drive . mine was the two bearings on the brake side.... i tipped the sled up on its side and could see the bad bearing from inside the tunnel , the seal was gone and some of the ball bearings were gone. I'll just about guarantee this is your problem. You will have remove the bolt on the brake side ... this bolt is long... goes all the way across to diamond drive ,so just be carefull removing it. Remove the brake rotor and the whole calper and housing assembly. There are two large bearings in there . These were the cause of my vibration. smooth as silk now. Good luck. Hope this helps ya out.

My problem was the clutch. My dealer and I took the clutch off his f6 and put that on it and problem was solved. Im not sure what the actualy problem was internaly but man that was a fast and easy fix for me. When I bought it brand new last year I had that same exact problem and alot of people were telling me it was the main drive bearings so I would def. lookinto that if you dont or cant get a diffrent clutch to try. Good Luck man

If you havn't already and have access to it, hop into some real deep powder and fool around as well. Mine was doing the vibration alot slower in powder than when I was running the lakes and it would kick in the same 65 and up till I couldn't take it anymore.

Wonderful, another issue!!! Mine vibrates too and has done it since I bought it with 350 miles. Not bad, just a high speed vibe like something is really out of balance. In fact, I checked my clutches to make sure they were aligned...they are. Belt is good. And if the bearings are gone at 400 miles...

My ZR, with 10,000 miles, is smooth as silk! Too bad it's so old-school.

Thanks for the info guys. I'll have to look at it this weekend. The Hifax are fine...I'll have to check the bearings. I welcome any more ideas or thoughts from others with the same problem. Thanks again.

I have the same vibration that you are describing. It is at the dealer right now. I noticed that mine has a varing cycle to the vibration. It seems to be the absolute worst from 79 to 81 mph. After that it seems to drop off some. I have put about 860 miles on since it started.(Didn't want to give up on the trip, so I kept riding.) Mine is an 08 800. I also noticed that I am getting a ton of belt dust on my boot and bibs. I rode about 600 miles before it started to vibrate.

Mine did this around 70 mph (06 CF 700 SP). Check your top idler wheels behind the torque sensing link. My track was rubbing on the TSL, causing vibration. I put the next size larger wheels on and problem solved. If you look at the top of the TSL, it may have wear spots, indicating the track is rubbing.

Thanks for the ideas

Don't want to hijack the thread but I am new to the CF and someone was mentioning getting the 6.38" wheels. What exactly was he talking about. I asked him and never got a reply. Are these the 4th wheel kit's that come stock on the Cf's? What's the normal size and does this make that big of a difference? Seems like it did for you..

Mine began a vibe after the first 1000miles. A weird HARSH vibe I could feel buzzing in my feet around 50-60mph and up till about 75mph or so. My track had stretched and had in turn come out of alignment. I re-aligned it and problem solved, took 10mins.

There are lots of good suggestions in this thread. A bent driveshaft is also a possibilty, but if you hit something that hard, you probably already suspect that.

The driven clutches on the DD sleds don't seem to last very long. If your bushings are shot, that can cause a high speed vibration. This is the first sled I have ever owned where the primary clutch outlasted the secondary , so check that out. And if you have added a shift assist, without making sure that the white bushing is centered in the S/A, it can be off to one side and throwing things out of balance.

And, of course, make sure you don't have a notch in your belt. I think we have all been there before, LOL.

the top idler wheels, where the skid attaches to the tunnel. take a close look and you'll see what they're talking about. the TSL bracket that the wheel runs in is close to the track and gets closer with skid compression. larger diameter wheels gets the track further away from that bracket.

Not to be a jerk, but it touches with skid decompression, so when you lift the rear off the ground, get some air, etc. Just so he can see what is happening

Thanks again for the ideas. I'm checking everything that was mentioned here tomorrow after work. If neither of those are the problem, I'll just have to deal with it when I get back. Thanks for all the input guys and good luck with your x-fires.

yeah, you're right. sorry. i sometimes get tension and torsion mixed up too.

Lol it's all good

F6 if you get a chance it would be nice to let us all know what your problem was and how you fixxed it. Good Luck

will do, as soon as I get back.....hopefully!!!!

My F6 had the vibration starting around 75mph, pretty much got use to it in my 3400 miles and cranking on the secondary spring always helped, shift assist made it pretty much go away for good. My movable sheave bushing has seen better days, but haven't really had the vibration this year. It did come back, but then I replaced my belt that had 3200 miles on it and it went away again. Lake racing the other day was waiting for it to vibrate as she was wot for at least 3k ft and it never did.

what size are the originals and what size did you install?do you have a part number?thanks
also f6firecat did you have a chance to find your vibration yet?

WTF I had the same problem develop with my 06 cf7 50mph to top speed. Got alot worse in the last 400 miles. I tightened and realigned my track when I got home. I also re-aligned my secondary (thanks Bee). It seemed to help in the garage on a trackstand, we'll see. I could probably use new hyfax, leaving for Munising wed so if I have a chance, I will change them out. I normally run my track really loose, stock tsl wheels, I am gonna try it a little tighter. I bent a cogshaft last year and had everything replaced by dealer, trust me, you know if you bend a cogshaft. This is different, buzzes through the footwells and into the bars, really annoying. I hope alignment and hyfax fix it. I will post when I find out.

Nope, nothing ever simple for me......
I rode it for about 450 miles last week, didn't get alot worse, but something is wrong. Munising Cat Dealership mechanic came out and looked at it in the parking lot. I can really feel a pulse in the brake lever almost feels like a warped rotor. He thinks it's a bearing going bad in the drive. I am going to pull it apart this week, probably will order a bearing and seal set from Bikeman. Any bearing damage is likely a result of floating my secondary last season with only a .30 shim. Lesson learned. I'll post what I find when I open it up..

Please update on this one when you dig into it. I can feel the vibrations in the brake as well. It does feel exactly like a warped rotor on mine as well. My clutch alignment is all out of whach now too. Secondary is in 150 thousandths. This all started right after DD had been pulled to do a seal replacement. This sled ran awesome until this vibration started and now I've lost 10mph on top.

i took mine all apart,split dd apart changed oil,replaced 2 idlers,looked at brake housing bearings,but did not replace the tsl idlers with the 6.3,i still have a vibration 75-up and feels like it's below my feet,i am going to replace the tsl's with the 6.3 and put a new belt,may try the xs801.maybe belt is slipping?i still get dust even with clutch changes.could a belt slipping cause a vibration?

had a bad vibration the other day on my left foot turns out i must have hit somthing and it took a chunk of alluminum out of my secondary sheve made it out of balance

Just got back from my trip. Still don't know y vibration in there. Father went into hospital before I left so I didn't have the time. The good thing is that now that I have just over 2,000 miles on my x-fire----I know have a bog at around 65 and up under full throttle...it bogs for about 2mph increments. Goes away, comes back, goes away, comes back....Dropping it off at the dealer in the morning...now that we have snow, they may be able to ride it and finally see that I'm not the idiot they think I am when I tell them something is wrong. They better find something this time!!!

Did you find out on the bearing being bad or not?


Hope your father is OK.

Any news on the vibration?

Haven't pulled it apart yet.

This is just wonderful. My dealer called today pretty much said it's all in my head. They had it out on the lake and can find nothing wrong. They don't feel a vibration or and surging under full throttle at around 60 MPH's. I know I'm not crazy and have been riding long enough to know when a sled isn't running top notch. I'm just bringing it home and I'll work on it over the summer when I get a chance. Worse case I sell the damn thing in the fall and buy a new sled. My dad is doing well. Thanks. Let me know if any of you find a new fix.

I have this same problem on my 06 cf 700 and i know a friend has the exact sled and same problem. sounds like any thing could be the problem i might just like mine go until it falls apart it only has 118 miles on it. i already want a new one im not real happy with the crossfire

well i pulled mine apart again,i've been trying to remember when this vibration started,basically after i loosened the front skid shock, then bee posted this
http://www.bd-xtreme.com/index.asp?PageAct...&ProdID=145
i took my skid out and the shaft is getting hit hard,i hope this is it but i just ordered the wheel kit,hopefully i can have it and try it out then repost if mine went away,maybe you guy's can look at your's too,since i have the brake side apart again i'm also putting new bearings in there too.

On my 2005 F5 standard with DD the vibration was terrible through the running boards at anything over 60-70mph - Was like that from day one , brand new

Ended up beeing the track - Yes the molded track was out of balance - Think about 30-40#s whatever , standard 1" track , (How much do these Crossfire ripsaw tracks weigh ???), of rotating mass on those track drivers , right by your feet

I went through everything on that sled until the dealer at one time replaced the track under warranty if i remember correctly - Man that seems like a long time ago - Anyways , it fixed the issue
No more vibration



On these Crossfires , both of mine , its not like a vibration , but more like an harmonic buzz of some kind through the running boards at high speeds

I know my track was hitting or rubbing on the TSLs on both sleds (You could see the aluminum wearing in spots on top) - I just rounded off the aluminum pieces on top with a hand grinder - No more rub
Didnt really help anything other then the fact its not rubbing anymore

I never did look at that cross shaft for the front shock in rear skid - That might bee my next guess (ShinnzzzellFizzle let me know how that works out for ya Black Diamond) I know for a fact all my bearings are infact decent in both DD gearboxes and Brake Calipers

Maybe its a track issue , maybe not - Its not nearly as bad as my Firecat was
Like i said its more harmonic then a vibration

I've done the larger idlers and that helped a little. I have repalced the bearings in the DD and no change. I have checked the crossmember for track rub and it's not happening. Finally took my secondary in for balancing. It was out by about 2.5g. I'll keep you all posted to see if that's the issue. Since the DD is direct to the drive shaft I figured clutch balance might be part of the issue. No chain to take up the vibration.

I found my problem. The main bearing on the output shaft inside the diamond drive was toast #17 in Country Cat exploded parts diagram.. The gear was frozen in to the race. When it finally came out, there was a pile of scrap and bearings on the end of the gear. I cant believe it even ran like that. I rode over 1000 miles after my vibration started, unbelievable that there is not more damage. No other bearings looked damaged. I really wish I pulled it apart and fixed it sooner. I'm gonna put on a complete bearing kit from BDX and hopefully all will be cool.

If you ever let your secondary float or are having symptoms similar to what I had (vibration over 50, pulsation on mild braking) I would pull your ACT Drive and give it a look, Takes about 45 min to pull out and split open, that includes removing the rear skid. (Took a little longer to get the output gear off). I have all the mild TSL and shock mount wear spots like everyone else, that wasn't the cause of my vibration.

mines only got 300 miles on it and it has a vibration, check out the wheels at the top of the track on the tunnel at the back, my buddy's is rubbing there and so is mine he bought a set of bigger bogies and i am just waiting to see if it works to buy a set for myself. they rub on the aluminum that the wheels mount to on the back upper part of the sled on the tunnel. you can order a set of bogies from the back set that are on the back shaft of the skid frame for about $50 bucks a set and that should solve your problems.

I'm not happy about Bee's reply...my track is out of line...by that I mean that it was not put together right and is actually 'crooked'. You can see it go back and forth over the rear idlers...what a crock. It's not so easy to center the track, that's for sure.

Check that, maybe they had a bad run of tracks in '06. I found mine too late to do anything about it with AC.

I was having a vibration on my C7...just a buzz like mentioned above. I changed my 1000 mile almost new slides. I also tightened the track up a fuzz. Vibration is gone...at least was this past weekend.

Maybe we have to run the tracks a bit tighter than normal??? I don't know why, but maybe it worked? My front crosshaft was NOT being polished by the drive nubs like I thought.

Yes those slides

I have replaced mine a few times on both sleds - They wear up front at the curve on rails in front of the outer idler wheels
I tried running my tracks tighter , but then they wear pretty fast in those spots , right thru the plastic , seeing the aluminum rails - Not good
I never did pay attention to the harmonic vibration issue - I will try that option , but now the damn pouring rain yesterday

I kept my tracks fairly fairly loose this winter (I dont run studs) - The slides have reached a point on that curve were they have stopped wearing , and still appear to bee good looking thru the windows on track

I was kinda wondering with the loose track and studs if my track was hitting my forward homemade tunnel protectors...but can't be too sure.