When will mighty 2-stroke return

[blasterfuntime]

I keep hearing about fuel injected 2-stroke on quads and bikes for a while now and how they will take the market back from the 4-exploders. I wish some one would take the first step into making the first DI 2-stroke quads and bikes but I've read there is no real progress. But if you look at snowmobiles, alot of them are 2-stroke bc 4-stroke sleds suck. In order for them to pass emissions they had to make them direct injected. So Artic Cat, Ski Doo, and Polaris have devoloped their own extreamly powerful, efficient, and reliable 2-strokes. I hate the new 4-strokes bc they try to squeeze so much power out of them that they tend to blow often and are VERY expensive to rebuild. If the technology is already being used and has been proven very reliable then why haven't any of the atv and dirt bike company's put them to market yet? It honestly bothers me alot! I just want to hear what everyone else has to say and to put their 2 cents in Here's a link to Ski Doors E-te motor

Sorry for not knowing where to post this. I figured engines would get the most views

 

[Awk08]

thee, 2014 yz250
http://www.yamahamotorsports.com/sport/products/modelhome/30/0/home.aspx

ktm's
http://www.ktm.com/us/mx.html

they never really left in bikes, not sure if atv's will ever return ?
it had little to do with emissions, except in california, but had more to do with
the manufactuers taking back parts sales, as they weren't making any $ on a piston/rebore
to rebuild a 2 stroke.
the big 4 manufactuers were behind the demise of the mighty 2 stroke and the rise of the fart can, expensive 4 stroke, as it lined their pockets with new sales and parts $

 

[harley1-5]

gas gas makes a 2 stroke quad

 

[YZX]

Yamaha is supposed to have a direct injection yz250 for 2015

 

[MrTwoJay]

They should come back, they are light, simple and extremely powerful for there size.
And MUCH more fun to ride!!! The powerband is like a shot of nitrous, compared to moring low end torque of 4strokers

 

[Larry's Shee]

http://www.zena.net/htdocs/welders/BPW.shtml#Top
Here is another use of 2s.
You can thank Honda preasuring the AMA (and maybe influencing the EPA) for the near death of the 2s
Hmmm, but why are the minis still 2s? (50, 65, 85)
KTM does hella good biz with smokers.

Several outboard companies do well with 2s. Direct injection plus other "tweeks" will be the future of the smokers.

The military uses smokers in drones, they have diesel 2s that can stay aloft for 36+hrs.

 

[bansheedave]

though very few companys sell w2 strokes here in the good ol US of A, yamaha, the US EPA has put a heavy thumb down on oil burning 2 strokes. as for sleds, even though 90% are still 2 stroke, the government has been on a mission to get them removed from the market. not sure if it will happen any time soon, but like bikes and quads here, the snowmobile is headed in the same direction.

 

[kevinsranger]

thee, 2014 yz250
http://www.yamahamotorsports.com/sport/products/modelhome/30/0/home.aspx

problem with this is its the same exact engine since 03, no updates, not that its slow or anything, but its not new technology for that amount of money

 

[rich1]

The real reason is the target market for 2 strokes. I know Honda says 4 strokes are easier to ride ,the more that ride, the more they sell.Most people just ride, they do not race. To make something to ride for that small market costs a lot. However if there is enough demand in a nitch market like there is in snowmobiles then it happens .Another reason is the cost factor ,jet skis used to be all 2 stroke till just a few years ago, till the EPA stepped in with the clear water act. The EPA made it hard for 4 strokes to pass too, so they are fuel injected and have an oxygen sensor ,instead of using just a fuel map. The economy is not helping either have you tried to get a loan on a RV, ATV, Boat ,ect lately? Those reasons and others helped me to decide to close the family Honda Dealership after 40 yrs of business.

 

[harley1-5]

has any1 riden a gas gas 2 stroke quad I think they are all that is left for 2 stroke atvs.Just curious about performance

 

[gizzy2014]

i voted no.... but not completely because of emissions because they are still being made..... i just think the 4-stroke is here to stay, id like to see 2-strokes come back also... but i dont think they will be number one again

 

[Herpderplol]

If they made some new 250 2-strokes they could dominate.

Theres just not enough bigger sizes for the quads.

They should really make a 450 2-stroke to run in the 450 class. Would be untouchable

 

[blasterfuntime]

Thanks for the comments guys! But if the era is going to bash on small displacement engines why not force diesels to pass emissions? Those things pollute the environment so bad but I still see them everywhere. They are the real problem

 

[blasterfuntime]

If they made some new 250 2-strokes they could dominate.

Theres just not enough bigger sizes for the quads.

They should really make a 450 2-stroke to run in the 450 class. Would be untouchable

How would it be legal to race a 2 stroke in a 4 stroke class anyways? Obviously the 450 2 stroke would ruin the 4s guessing all the riders are skilled

 

[joeak47]

That's right... it uses OIL INJECTION!
REMEMBER? .... I'm a big fan of it, and have had ZERO ISSUES with it on my ported, high compression, re-chambered head, port matched, DMC piped Blaster's engine !
Years of service with no issues. It works!
Evinrude also make direct injected 2 stroke out board engines!
I can't count how many times on this forum that folks have debated me and a few others about how oil injection systems always fail, or blame the OIL INJECTION system for failure of an oil injected engine.
Its always assumed that the "oil injection system" was at fault, when its actually something else, like perhaps ... a very common crank case air leak (lean condition), improperly jetted engine (lean condition), too much timing advance (detonation), poor quality fuel (detonation), improperly fitted, or worn out piston (excessively worn piston / piston to cylinder clearance), etc, etc.

I would love to see the 2 stroke quads come back also, and I believe they will very soon.
Then we'll hear everybody talk about how four strokes suck, and how good 2 strokes are, how well they work, how POWERFUL they are, and how you don't have to pre-mix the fuel because of the OIL INJECTION SYSTEM, etc.
Imagine that!

 

[Herpderplol]

Blasters are two stroke, and they are forced to run in the 250 class with the 4-pokes. They dont even have 2-stroke classes anymore

Thanks for the comments guys! But if the era is going to bash on small displacement engines why not force diesels to pass emissions? Those things pollute the environment so bad but I still see them everywhere. They are the real problem

Do you drive a prius? No offense but seriously...

 

[DUALSTROKE]

That's right... it uses OIL INJECTION!
REMEMBER? .... I'm a big fan of it, and have had ZERO ISSUES with it on my ported, high compression, re-chambered head, port matched, DMC piped Blaster's engine !
Years of service with no issues. It works!
Evinrude also make direct injected 2 stroke out board engines!
I can't count how many times on this forum that folks have debated me and a few others about how oil injection systems always fail, or blame the OIL INJECTION system for failure of an oil injected engine.
Its always assumed that the "oil injection system" was at fault, when its actually something else, like perhaps ... a very common crank case air leak (lean condition), improperly jetted engine (lean condition), too much timing advance (detonation), poor quality fuel (detonation), improperly fitted, or worn out piston (excessively worn piston / piston to cylinder clearance), etc, etc.

I would love to see the 2 stroke quads come back also, and I believe they will very soon.
Then we'll hear everybody talk about how four strokes suck, and how good 2 strokes are, how well they work, how POWERFUL they are, and how you don't have to pre-mix the fuel because of the OIL INJECTION SYSTEM, etc.
Imagine that!

C'mon Joe, surely you have some better info to share than this "oil injection crap" you preach in every post.
If oil injection was so damn good, every 2 stroke would run it ?
It was used on the blaster to prevent 12 year olds from mixing their fuel wrong.