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MOTOTRAX FIXES tips and tricks

Right. But increasing the travel and adding a bump stop or a spring? I have noticed my rubber covers on the shock have come off a couple times. I thought ice or something pushed them out. Makes sense to me that the shock can't flex with the skid as much.


Almost 2 months rubbers have not come off.
Retains the original feel of the track
Don' t increase the thickness or the diameter of the large side of the retainer it will bend or break.

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Almost 2 months rubbers have not come off.
Retains the original feel of the track
Don' t increase the thickness or the diameter of the large side of the retainer it will bend or break.

Are you sliding that over stock bushing?
 
Here is my adjustable strut rod. Tractor Top Link, currently running it at 13.5" center to center (2012 350xcf-w; 129 kit). This seems to be the best setting that I have found so far. Any shorter and the ski is way to sketchy on the trail. I have also found that the ski edge skags should be longer; during aggressive turn-ins, the front end can wash out because there isn't enough skag in contact with the snow. Another observation that helps with trail manners: just rail the bike; when I'm cooking down the trail in 6th gear, the bike runs much straighter than when just trying to gently cruise.

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Brake caliper studs replaced with bolts and nylocks.

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It floats, the bolts are 3/8" to long so the nylock bites without actually tightening down.
 
I can't quite tell from the photo - is the bridgey thingy using the same posts, or did you replace them with longer bolts as well?

My posts have stayed tight so far, but it's something I've come to check every time I stop (along with the heim joint rubber stops, rear slider bushing, rear idler air dampers, axle bolt...)
 
This is the first time i have seen anyone talk about the short carbides! I too have had some washout issues, going downhill- the carbides seem too short...?

I have built some additional runners and added them to the ski edges. If they work, I'll post pics.
 
I have built some additional runners and added them to the ski edges. If they work, I'll post pics.
I'm planning the same thing. I'll wait to see how yours turn out. I was thinking 2 1/2" to 3" 45 degree sponsons would do the trick.
 
My upgrades

Here's what I've done so far. I'm in the process of making the rear billet T out of stainless instead of aluminum this will cure two problems 1) durability, you won't be breaking it (to small of a dia to be alum, some parts just should not be alum to "save weight"). 2) It will eliminate the Alum on Alum wear surface (still can't get over this as a fix to the problem). The others are self explanatory. On a Yamaha the plates are a must IMO. The fork ends are made of magnesium and have very thin side walls, I also increased the spindle to 10mm from 8mm. I'm not a big fan of carbides so I made new and kind of copied Woodies dual wear bar design. This really helps eliminate the darting when going down the groomed trail (night and day difference) As far as I'm concerned it is a must with this ski design. The guard on top of the secondary chain drive is a no brainer, can't believe that they like all that grease flinging everywhere, including the rider.

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I forgot this fix

This was a fix I did to my daughters and my kits that, frankly I can't believe they missed this, but I put a S/S "cap" on top of the rear spindle shoulder to increase the diameter to be slightly larger than the rear slider dia. the stock size acts like a gasket punch and just tries to go up into the rear slider tube. That is the main reason the original nylon bushings failed.

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^nice mods!^

I tried my rubber egg bumper yesterday and it worked well. I know it was hitting a lot as I was popping over bumps and trying to land on the back and carry the ski a little. When I got back it had created a perfect polished ice button on the bolt head where it was impacting the rubber snubber. Kinda neat. However my aluminum bushing is also egging out HARD after only like 3 rides. So, that needs a better solution.
 
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