sweetjob
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- 2007 yamaha phazer
Granted this was probably the beginning of the Nytro, this was back in 07 I believe.
sweetjob
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HartleRacing
Expert
that there would be the FX nytro concept sled. didnt look too bad to be honest..
Ruckus
TY 4 Stroke Master
There's no way a 4 stroke can do what a 2 stroke can do without weighing 60 to 100 lbs more. Furthermore a 4 stroke can't be run in any plane of direction like a 2 stroke can. The added weight of a 4 stroke is harder on suspension components and makes for an unbanced sled. The rear exiting exhaust must be eliminated to facilitate storage and the ability to mount the gas tank directly above the the tunnel, not a above the exhaust. Until Yamaha adresses these issues I have no interest in seeing any new product.
7 skulls
TY 4 Stroke Junkie
There are 2 logical reasons to consider this info. as possible. Yamaha hasn't released anything new in the chassis department since the hybrid frame of the phazer/nytro. Development had to be ongoing in the background, if not on upgrades to existing chassis then the time and money had to be going into something new.
Secondly, it makes great economic sense.
Secondly, it makes great economic sense.
low slung
TY 4 Stroke Master
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I ride an enticer II with all those qualitys,no rear exhaust,ability to carry the gas can on the back.Yup,they should go old school,along with the stinky ski-doo smell on our clothes.Ruckus said:There's no way a 4 stroke can do what a 2 stroke can do without weighing 60 to 100 lbs more. Furthermore a 4 stroke can't be run in any plane of direction like a 2 stroke can. The added weight of a 4 stroke is harder on suspension components and makes for an unbanced sled. The rear exiting exhaust must be eliminated to facilitate storage and the ability to mount the gas tank directly above the the tunnel, not a above the exhaust. Until Yamaha adresses these issues I have no interest in seeing any new product.

kviper
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And a motocross bike will not work with a four stroke motor. LOLlow slung said:I ride an enticer II with all those qualitys,no rear exhaust,ability to carry the gas can on the back.Yup,they should go old school,along with the stinky ski-doo smell on our clothes.Ruckus said:There's no way a 4 stroke can do what a 2 stroke can do without weighing 60 to 100 lbs more. Furthermore a 4 stroke can't be run in any plane of direction like a 2 stroke can. The added weight of a 4 stroke is harder on suspension components and makes for an unbanced sled. The rear exiting exhaust must be eliminated to facilitate storage and the ability to mount the gas tank directly above the the tunnel, not a above the exhaust. Until Yamaha adresses these issues I have no interest in seeing any new product.
Ruckus
TY 4 Stroke Master
Motocross and snowmobiles are two separate entities. An MX bike primarily operates in one plane of existence whereas a snowmobile is frequently on its side or upside down. You don't see any 4 stroke chainsaws do you? If your sled is always on its skis then go buy a yamaha...they are excellent groomed trail machines. Take one in the back country and you will quickly discover its shortcomings. If you can't find any shortcomings on your yamaha, then you are not riding it hard enough. Have you ever ventured into the Nytro Mountain section of this forum?kviper said:And a motocross bike will not work with a four stroke motor. LOLlow slung said:I ride an enticer II with all those qualitys,no rear exhaust,ability to carry the gas can on the back.Yup,they should go old school,along with the stinky ski-doo smell on our clothes.Ruckus said:There's no way a 4 stroke can do what a 2 stroke can do without weighing 60 to 100 lbs more. Furthermore a 4 stroke can't be run in any plane of direction like a 2 stroke can. The added weight of a 4 stroke is harder on suspension components and makes for an unbanced sled. The rear exiting exhaust must be eliminated to facilitate storage and the ability to mount the gas tank directly above the the tunnel, not a above the exhaust. Until Yamaha adresses these issues I have no interest in seeing any new product.
AKrider
TY 4 Stroke God
Watch the USCC series this winter for anything different as they will be doing R&D in XC racing. Maybe we can watch them do further testing on the Polaris IQR rear skid?
I'm joking, in any case they can't keep running 4 year old mod sleds around and hope to get a podium finish. Thing is, I don't see them doing anything. Yamaha USA absorbed Yamaha Canada so it is obvious their snowmachine segment is having financial issues. Yamaha is #4 in sales after being #3 for a few years.
They need to do something. The best thing they could do to get immediate sales is release an HPDI two stroke and we know that won't happen.
Great photos of the early Nytro. Looks like the one they were racing in the all Japan series.

They need to do something. The best thing they could do to get immediate sales is release an HPDI two stroke and we know that won't happen.
Great photos of the early Nytro. Looks like the one they were racing in the all Japan series.
yamacharger77
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- 81 srv 540, 2001 srx, 07 attak gt, 15 Ltx se Viper, current-2017 Sidewinder ltx SE
2013
I agree with kviper on this one!
kviper said:And a motocross bike will not work with a four stroke motor. LOLlow slung said:I ride an enticer II with all those qualitys,no rear exhaust,ability to carry the gas can on the back.Yup,they should go old school,along with the stinky ski-doo smell on our clothes.Ruckus said:There's no way a 4 stroke can do what a 2 stroke can do without weighing 60 to 100 lbs more. Furthermore a 4 stroke can't be run in any plane of direction like a 2 stroke can. The added weight of a 4 stroke is harder on suspension components and makes for an unbanced sled. The rear exiting exhaust must be eliminated to facilitate storage and the ability to mount the gas tank directly above the the tunnel, not a above the exhaust. Until Yamaha adresses these issues I have no interest in seeing any new product.
I agree with kviper on this one!
Ruckus
TY 4 Stroke Master
Re: 2013
Do you agree that a 4 stroke, although quiet, powerful and reliable, cannot be operated in all planes of direction? Add to that a fuel tank that raises the center of gravity due to the rear exiting exhaust and you get a tippy sled that should NEVER be tipped over. I have and promptly lost the motor. As stated...beautiful groomed trail machines.yamacharger77 said:kviper said:And a motocross bike will not work with a four stroke motor. LOLlow slung said:I ride an enticer II with all those qualitys,no rear exhaust,ability to carry the gas can on the back.Yup,they should go old school,along with the stinky ski-doo smell on our clothes.Ruckus said:There's no way a 4 stroke can do what a 2 stroke can do without weighing 60 to 100 lbs more. Furthermore a 4 stroke can't be run in any plane of direction like a 2 stroke can. The added weight of a 4 stroke is harder on suspension components and makes for an unbanced sled. The rear exiting exhaust must be eliminated to facilitate storage and the ability to mount the gas tank directly above the the tunnel, not a above the exhaust. Until Yamaha adresses these issues I have no interest in seeing any new product.
I agree with kviper on this one!
TRUE BLUE SINCE 1980
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Here is what i have noticed. Yamaha comes out with a sled that is 5-8 years ahead of of the other Thee makers, Then they sit back for 6-9 years.
Think about it! take any sled they made , and compair it with the compition of the year it was brought out.
early 80's srv, v-max , v-max4
98 srx
2001-2003 sxr srx viper
and on it goes.....
I guess we all agree yamaha has been sitting back some, so we can only hope!
Think about it! take any sled they made , and compair it with the compition of the year it was brought out.
early 80's srv, v-max , v-max4
98 srx
2001-2003 sxr srx viper
and on it goes.....
I guess we all agree yamaha has been sitting back some, so we can only hope!
7 skulls
TY 4 Stroke Junkie
Ruckus said:There's no way a 4 stroke can do what a 2 stroke can do without weighing 60 to 100 lbs more. Furthermore a 4 stroke can't be run in any plane of direction like a 2 stroke can. The added weight of a 4 stroke is harder on suspension components and makes for an unbanced sled. The rear exiting exhaust must be eliminated to facilitate storage and the ability to mount the gas tank directly above the the tunnel, not a above the exhaust. Until Yamaha adresses these issues I have no interest in seeing any new product.
I believe stihl has a line of 4-stroke engines (lawn equipment) that can operate in any plane.
Secondly, the added case strenght (weight) of a 4-stroke engine allows it to do one thing that to my knowledge has never been done with a 2-stroke vehicle: use the engine as a stressed member of the chassis or better yet the entire chassis itself. A 2-stroke will always need a chassis. The day may come in the snowmobile world where the 4-stroke engine is the chassis. Its common place in many other forms of motorsport.
fxnytroxtx
Guest
makita makes 4 stroke concrete saws and blowers.7 skulls said:Ruckus said:There's no way a 4 stroke can do what a 2 stroke can do without weighing 60 to 100 lbs more. Furthermore a 4 stroke can't be run in any plane of direction like a 2 stroke can. The added weight of a 4 stroke is harder on suspension components and makes for an unbanced sled. The rear exiting exhaust must be eliminated to facilitate storage and the ability to mount the gas tank directly above the the tunnel, not a above the exhaust. Until Yamaha adresses these issues I have no interest in seeing any new product.
I believe stihl has a line of 4-stroke engines (lawn equipment) that can operate in any plane.
Secondly, the added case strenght (weight) of a 4-stroke engine allows it to do one thing that to my knowledge has never been done with a 2-stroke vehicle: use the engine as a stressed member of the chassis or better yet the entire chassis itself. A 2-stroke will always need a chassis. The day may come in the snowmobile world where the 4-stroke engine is the chassis. Its common place in many other forms of motorsport.
whitedust1
TY 4 Stroke God
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Never ever 2nd guess Yamaha new release. If you get something new all well & good & most teething is well behind & easy to purchase 1st year sleds without risk. Any Yam rep that would leak this type of info would be looking for a new job. Rumors don't develop new products R&D engineers do that.lol
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