Evol reservoir orientation

TD Max

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Update: Note to all with the Float Evols (RTX LE models) be sure to check orientation of the Evol chamber. It should NOT be offset to the rear near the tie rods.


The Evol chamber on the RC shocks is offset to the one side of center. On one machine pictured they offset rearward. On another they offset forward. So which one is it?

http://www.yamahamotorsports.com/sport/products/modelgallerylib/693/1/0/gallery.aspx#

If you zoom in on the side view of the Orange one they are visible. On the white one they are not.

I don't see that it makes just a ton of difference, but rearward puts closer to the tie rods.
 
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You have to orient them to the front or they will hit the steering linkage rods on compression. I know there is now instructions for them but I put mine in then let all the air out and they made contact. Had to switch them. I looked and that picture appears to be on wrong.
 
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I don't have these shocks on my SE ... but one word of advice. If it is possible, I would recommend mounting the shocks so the air chambers are up. This comes from experience with my FX Nytro that had the Fox Float X shocks with oil reservoirs. They only way to mount the shocks on that sled was to have the air chambers on the bottom. The air chambers will have a bit of green oil on the inside of them to help keep the seals and wipers lubricated. Since the air chamber was on the bottom, the oil obviously pooled up in the bottom of the shock. Whenever adjusting the air pressure, a small portion of the oil would leak out the air valve. Over time, the air valve gets gummed up and covered with oil - kind of a PITA.

So if possible, mounting the shocks up-side-down to have the air chamber on the top might be a good idea. I know it would then make changing the compression clicker a pain - but at least you don't end up with a mess. But then again, mounting in this way might not even be possible on the Viper. Just my $0.02.
 
There is NO OIL in the evol tube! you need the evol tube at the bottom and the oil resevior at the top


1Front Naked.jpg
 
There is NO OIL in the evol tube! you need the evol tube at the bottom and the oil resevior at the top

I can't speak for the evol chamber. But I guarantee you, there is oil in the main chamber. They put a few ounces in there. But anyway - it was just a suggestion.
 
You have to orient them to the front or they will hit the steering linkage rods on compression. I know there is now instructions for them but I put mine in then let all the air out and they made contact. Had to switch them. I looked and that picture appears to be on wrong.

Thanks. I looked at it again and see what you found.

The Evol RC shocks have a piggyback oil/piston reservoir up top and an Evol air chamber at the bottom.
 
FYI based on the pics from Kerrdog his Evol chambers are to the rear. I went back into my pics and they came oriented forward.
 
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Mine are to the front. Like Yamadogs. Also Evols on bottom. There is only enough of the float fluid which is thicker than gear oil to provide lube. A tablespoon at most. In the newest Fox Evols there is nothing in either chamber other than lube on seals. Put the Evol chamber down and to the front.
 
Yeah mine were on wrong the dealer told me to look and see if they touched the steering rod and they did,swapped em and now it's good to go
 
Lol yeah it wouldn't be hard to do that's for sure,mine was one of the first RTX LE's to be shipped and someone forgot to put assembly instructions in with it,but we caught it before I rode it so no big deal
 
Dealer puts the shocks on. This explains the inconsistency.
Yes and mine was the only RTX LE they ordered,I personaly fault cat for not sending assembly instructions,these guys are really good mechanics and they've never seen these shocks before let alone put them on a sled so no harm no foul,it would do some damage though if it was ridden that way
 


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