Yamaha RX-1 four stroke snowmachine

[WR 250]

Any sledheads checked it out yet? Looks pretty wild. It uses an inline 4 out of the R-1 street bike that is mounted in backwards and has the exhausts running out under the seat and mounted to the side of the tunnel so they existout the back just like a bike. Pretty cool. They didn't list a weight but I've heard that it is 550lbs. I thought it was interesting that they didn't include the 3 year warranty like they do on the two strokes. Hmmm, makes you wonder. It does come with a 1 year warranty and costs just under $9000.

You can check it out at the Yamaha website. Kind of cool that Yamaha keeps being the first in fourstokes; i.e. dirt bikes, watercraft and now snowmobile world.

 

[Okiewan]

Sorry to whoever posted this originally... I accidentally deleted it yesterday. :mad:

 

[WR 250]

That was me, I wondered what happened.

 

[RMXkid]

as a big sled head i think i would by that sled if i was going to get a 4 stroke. it finaly makes the power of a big 2 stroke and dosent weigh that much more than the 2 stroke sled. the competion 4 stokes are slow and heavy. it would be nice to have a high performing that gets 20 miles to gallon compared to 10-12 on most high performance 2 strokes and no stink.

 

[ZOOK250]

i just read on a skidoo site that rotax has a 2003 ,1000cc 4 banger that will be out for the olympics. they are supposedly the supplier for the olympic commity. it is a v4 and is supposed to put out 165 horses. there is a picture of the engine , but they dont say what sled it will go into.

 

[ZOOK250]

after searching around a bit more on the rotax engine. nowhere near 165 hp. the reports i have seen now say around 80 hp. the yamaha is sweet at 145 hp. this thing looks wild, especially with the twin pipes out the back.

 

[Rodzilla]

Here is a beauty:

110 hp thumper sled

http://www.redlinesnowmobiles.com/pages/954.html

 

[motometal]

I believe Yamaha discontinued their 3 year warranty program (too many claims?):p

On a dirt bike, a four stroke engine works well with its wide, smooth powerband. Sleds have a continuously variable transmission system, which to some degree will allow an engine with a narrow powerband to work fairly well, staying in the meat of thw powerband whenever needed. So, i'm not sure if this will be much of an advantage with four stroke engines in sleds.