Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

  • Don't miss out on all the fun! Register on our forums to post and have added features! Membership levels include a FREE membership tier.

2015 Mountain Max rumor thread

Well the new 3 cylinder x-plane engine is now released. Anchorage Yamaha has a brand new cycle on the floor with the motor, FZ9. I was told it produces 120hp. Sounds nice but not enough power there for the new mtx machine. The new engine must still be under wraps.

without a turbo it makes 120hp:face-icon-small-win with a turbo:face-icon-small-sho
 
I would love to see a reworked SRX Triple at about 800cc with direct fuel injection sitting in a Rider Forward design coming in at a dry 450ish... No sound like a high revving triple bangin' across the mountain side!
 
I would love to see a reworked SRX Triple at about 800cc with direct fuel injection sitting in a Rider Forward design coming in at a dry 450ish... No sound like a high revving triple bangin' across the mountain side!

I have a beat up Mountain Max out back and an RX1 with engine issues and the temptation to put the 700 triple in the RX1 is almost overpowering....lol.
 
I have a beat up Mountain Max out back and an RX1 with engine issues and the temptation to put the 700 triple in the RX1 is almost overpowering....lol.

This has been done. Its not easy buy has been done... I recall seeing it on the TY forums a couple years ago. Some guy in Sweden or Iceland.
If I remember right it weighed the pretty much same as it did in the two stroke chassis in the end.
 
This has been done. Its not easy buy has been done... I recall seeing it on the TY forums a couple years ago. Some guy in Sweden or Iceland.
If I remember right it weighed the pretty much same as it did in the two stroke chassis in the end.

That was my estimate, same weight but RX1 looks way cooler than MM in my opinion.
 
Well the new 3 cylinder x-plane engine is now released. Anchorage Yamaha has a brand new cycle on the floor with the motor, FZ9. I was told it produces 120hp. Sounds nice but not enough power there for the new mtx machine. The new engine must still be under wraps.
Thats WAY to little HP!! 160-170 hp without turbo than we are speaking! I realy hope the new engine that will sitt in a new mtx mountain have minimum 160hp and that it is made for turbo convertion. Strong rods that can handle 350 hp ;)
 
Merely stretching the Viper and turbocharging the current genesis engine for the 2015 mtx release does not seem to square with what Yamaha announced last year:

" Partnering with YMC Japan, development is already underway on state-of-the-art four-stroke high-technology snowmobile engines, which will take us into a completely new dimension of performance, and new sled platforms. And did I mention that was engines, plural?

They said development was already underway of new four-stroke engines. Hopefully that means one N/A version cranking out 180 hp! Can they pull off that 'new dimension of performance'?!
 
that was probably just the boost-it viper this one

Nope it wasnt. It was all blue. Had prototype decals on it. Chris brown was there. There was also someone elses full mod, all blue white tunnel with a turbo and timbersled rear skid.

Stock had cat rear skid. A welded outer bar that looked extruded and centres were like the polaris pro boards.
 
Last edited:
That was robertson yamaha's viper with a cr tunnel extension, timber sled skid, and mcx turbo.
 
HOPE springs eternal.
Yamaha has a few surprises in store for us.


Just in case anyone missed it.
That was the ultimate TEASER that Mountainhorse just dropped!!
Oh ya.
There is MORE to come to be sure.!!

Christopher, your comments make me think you've signed a non-disclosure agreement so you can only drop hopeful one-liners. Did they actually suceed in co-opting you with advance knowledge of their testing and development?? Assimilated! No wonder you have avoided making any significant speculation on the upcoming technology.

Somebody else must have heard something about the new 4-stroke engine technology under development. Mountainhorse? Anyone?
<!-- / message --><!-- sig -->
 
Premium Features



Back
Top