Engine braking reduction??

nate007

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Snowmobile
1. '06 Apex -twin screw
2. '04 Redline Revolt 800
3. '09 Nytro XTX - twin screw
Just happened to be poking around on another thread and posting about how the engine braking of the Apex can make riding alot more fun. Since the Nytro supposedly has the reduction system, do those of you who have ridden the new sled like or dislike the lack of braking? Can anyone forsee a way to de activate this feature? I haven't been able to ride mine yet, but that is one thing I think I might miss.
 
I didn't even notice the feature on my first ride. It didn't become apparent to me until I rode my Vector back to back with the Nytro. I then noticed the reduction but it is not anything that makes a night and day difference. It is almost a middle ground between a regular 4-stroke and a two-stroke. I'd prefer if my Nytro didn't have the braking reduction feature as I was happy with how my Vector worked. Who knows, maybe I'll learn to appriciate it?
 
From what I was reading, it seemed that most people got used to it and then learned how to use it to your advantage. Me, I would never prefer to have it, but if I did I would make the best of it.
 
I have never ridden a fourstroke sled yet (come on snow).

I have ridden a lot of two stroke and four stroke off road/mx bikes.

I love the "hit" a two stroke gives, every now and then, when someone else owns it and I ride it.

I would prefer to own four strokes myself. Especially for single trail woods riding on bikes, and I imagine snowmobiles would be the same.

If someone came up with a clean easy way to get remove the reducer from these FX Nytros I would probably try it; I would like to ride it stock first however as it might be just right as is. I know rapidly chopping on bikes has sent me on more then one over the bar adventure.
 
I didnt like the engine braking on the demo Attack I rode last winter so Im glad it has it myself......
 
I've ridden a few fourstrokes last year, the Apex and the Phazer, and I didn't care for the EB myself. The Nytro feels more 2 stroke like to me, so I'm happy the reduction is there.
 
Actually I just remembered I rode Phazers last year.

It did find the engine braking a little severe on it, more then dirt bikes. I think you have enough driveline resistance on a sled that having full engine braking is almost too much so the reduction system might be a bit severe.

We shall see eventually.
 
I have ridden my brother's 2007 Attak a few times and I actually don't like the engine breaking, but if I owned a sled with the EB, I would learn to handle it better.

I'm glad my 2008 FX Nytro has the EBRS.
 
Engine braking is the best part of these four stroke sleds,just remember to ease off the throttle so you can control the eb don't just let off and coast this will cause it to fall on its face.Just one of the reasons why I didn't purchase this Nytro.
 
I didn't mind it. After my first ride on my Apex GT last winter. I could not tell the difference. It just became something to expect and I was busy holding it wide open anyways. ;)!
 
For off trail riding the EB can put you over the bars in a hurry if your not paying close attention. On-trail, I was ok with it. Overall I'm happy that it has been reduced on the Nytro for this year.
 
this is not dissimilar to an emission device some cars have which keep the throttle partially open during decel to reduce hydrocarbons. I have a feeling it would not be hard to disconnect.
It is a solenoid which opens a port, or a solenoid that keeps the butterfly's open a bit. May not be a solenoid, could be vacuum operated instead.
 
I don't believe you will be able to bypass this feature as it is controlled by the idle air control motor which besides raising the idle on decel for the engine braking reduction feature also controls the idle during warm-up and all other periods. If you disconnect it or block the port not only will you get the check engine light to stay on but the sled will not be able to control the idle and most likely will not run if the port is blocked.
 
Yes, Tork and Port are correct in how it works. One thing I noticed about the system that was a bit annoying happened when riding in powder. At slow speeds, just above engagement, while feathering the throttle or coming to a stop and then giving it a little bit of gas to stay moving, the engine rpm's would increase slightly, without your input. I also noticed the rpm's would stay slightly elevated even after completely letting off the throttle. This reminded me of my Dad's old 1990 Chevy K1500 with TBI. He had a stick and at low speeds while shifting between 1st and reverse while manuvering the truck, the rpm's tended to "hang" when the engine was revved since they didn't decrease as soon as the throttle was released. My Nytro acts in a similar manner.
 
I can't help but assume that somebody will address this on the aftemarket side.
I dont want my sled to run like an old Checy truck!
It would be great to know that there will be a way to adjust this feature if somebody wants to.
 


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