>KTM has announced a fuel injected 2 stroke engine hitting

>twostroke anything
Ddddiscarded

>>16844462
>I dont like simplicity
>I dont like reliability
>I dont like having fun

>>16844452
Hype.

>>16844468
Whoa whoa whoa, I like 2 strokes but... reliability?
Uhhh no.

>>16844452
Didn't beta do this in 2015

>>16844480
Top end replacement on a 2t and 4t are recommended to be done at the same hour mark (or close to it) only difference is the 2t can be done for a third the cost in a quarter the time.

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Bimota did this 20 years ago (it was shit)

>>16844480
i got 2 strokes fur ya

>>16844490
This is wrong tho?
Blanket generalization really stupid and you're stupid for saying this.
The fact is that 2 strokes do bo have a piston/crank/cylinder that are constantly bathed in pure oil, they are bathed in a gas//oil mixture which is less effective at cooling and protecting, they run hotter and have less protection, they are inherently less reliable, not mention the cylinder has a hole in it, something for the piston or rings to potentially snag on.

>>16844491
lol you are retarded. Aprilia did this for years, and they were very successful, suzuki, kawasaki and some others had very good bikes in the 70s that were.

>>16844489
Yes, but for me the closest beta dealer is 8 hours away.

>>16844500
2 strokes do not have* sorry I'm phone posting on the toilet

>>16844452
ive been wanting to try and prototype something like this in my garage with a 212 and ebay/used parts but i just dont have the time and tooling unfortunately. but ive always thought why not mkae a gas 2 stroke diesel style just with spark plugs

Is it going to be Direct Injection? I want to Dual Sport a 2 stroke and Direct Injection would greatly help.

>>16844501
>suzuki, kawasaki and some others had very good bikes in the 70s that were.
such as?

Can't wait to put this on my bicycle

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>>16844480
40 years old
it still works
2 stroke master race.

>>16844559
if it had DI then it wouldn't need to mix oil and gas

would be neat

>>16844624
> not driving a 750cc triple direct injection 2 stroke

Pussy
https://en.m.wikipedia.org/wiki/Kawasaki_H2_Mach_IV

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>>16844633
So what?
Do you have an hour meter on it keeping track of how many hours it's ran?
I build 2 stroke motors all the time, I understand their pros and cons.
Reliability isn't one of their pros.

>>16844452
Rumors of this have been going around for like a decade

>>16844663
Yea and now it's been confirmed which is what's exciting

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>>16844638
>used (3) carbs
try again

>>16844666
source?

>>16844737
http://www.motorcycle.com/features/ktm-announces-fuel-injected-two-stroke-engine-for-2018.html

>FI
>not DI

Why should I care?

>>16844812
still prevents unburnt fuel from escaping out the exhaust port before combustion

>>16844839
But it doesn't lube the crank directly which would be a lot better in a dual sport role.

>>16844861
I'm sure they have concocted a suitable oiling system.
>premixing not required
they may have put in a full mechanical oiling system

>>16844861
The TS185 made in the fuckin 70s directly lubes the crank, it's not that hard to figure it out.

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>>16844480
I have a 1999 cr125r, and 2 strokes blow up for one reason, and thats if you rev its absolute balls off in neutral or at the top speed of your gear

>>16844480
nigger, the only reason MX engines need constant maitenance is because they have retarded high compression for power

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>>16844921
....2 strokes have gasoline in the crankcase and gasoline diluting the oil protecting the cylinder walls, 2 strokes have much hotter pistons, 2 strokes have ports that wear out the piston and rings, 2 strokes typically run hotter, 2 strokes use needle bearings typically because a flat bearing like a typical engine would never hold up in these conditions for any decent amount of time, the conditions that also cause the cylinder walls and rings and piston to also wear at an accelerated rate
>>16844945
wrong

>>16844964
Then why do Mx engines blow up? Scooters or even the Aprilia RS engines last forever, but MX engines done.

>>16845085
Aprilia RS engines don't last forever...
my friend had an aprilia 50cc direct injected scooter and you have to rebuild it every 50 hours
The reason those modern 4 strokes don't last as long is weight, look at an old XR650R and compare that to a modern crf450, a quarter the weight, quarter the side skirt length, everything is tuned to the edge, it's a high strung engine.
You can make a slow and reliable 4 stroke and a slow and reliable 2 stroke but the 2 stroke will still not last as long as the slow and reliable 4 stroke.

>>16845130
Piston changes on the RS250 I think is every 10,000 or so miles, if you were replacing pistons that often in a rs50 he was Probably keeping it revved out since it's such a small engine.

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>>16844661

well, lets just say for 30 of it years it mowed laws at lets say a half hour a time. and maybe 40 times a year. That what 60 hours. time that by 30 years that's what 1800 or so hours. My maths maybe wrong been a long day.

>>16844661

I do. Six thousand and fifteen hours on a Tohatsu M18E2. Original rotating assembly, rings and head gasket. One set of reed valves have been changed.

Two cycles are inherently reliable. They are still the commercial marine engine of choice for this reason as they don't offer any other benefits. Emission output is higher, fuel consumption is higher, NVH is far higher, but chances are if there is fuel in the bowl it will start and run the whole shift. eTec offers a longer lifecycle than equivalent output Honda and Yamaha four cycle with less than half of the required service intervals during this time.

I'm not surprised the ones you put together don't last if you build them like your speakers, hoses and other abortions.

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>>16844452
http://articles.superhunky.com/4/106

http://www.dirt-bike-tips-and-pics.com/future-of-two-strokes.html

>>16845186
>was probably keeping it revved out
No shit it's revved out it's a 50cc 2 stroke, not the mention the fact it's a CVT system that keeps it at like 8k rpm all the time.
Obviously you don't even know what you're talking about since you don't realize how scooters even work.

>>16845269
4 stroke would do the same plus more, refer to the end of this post >>16845130

>>16845330
If you think a ship engine compares to a fucking dirt bike then I'm done talking to you lmfao

Great another bike that won't be allowed in California.

>>16845629
Why does commiforia suck so bad?

>>16845594
rs50 is a "sport bike"

>pic is a rs50

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>>16845819
Fuck forgot pic

>>16844452
Not unless its a US street legal direct port injection.

>>16845851
I think the EPA blanket banned any 2 stroke for street use, but there are ways around that.

>>16845594

>outboard
>as in 150-500cc two cycle per pot
>as in very much like a motorcycle engine

Fuck, you are in the running for the dumbest cunt to have lived.

>>16846040
You realize he's talking about ocean going ships not speed boats right??
Also,
>water cooled because it's always in the water
>compact
>powerful
Still nowhere near as reliable as a 4 stroke, also most lakes have banned 2 strokes now.

>>16846075
>nowhere near as reliable

Then why are they still used so frequently in boats when they offer no other advantages?

>>16846083
I just gave all the advantages you fucktard can you read

>>16846075

Seeing as it's the same person, you monumental cockhead, I ain't talking about ships.

Yes they utilise a water jacket, but then so too does the equivalent four cycle. It's not that the bar of reliability has been lifted for the two cycle because of the jacket water, as the combustion chamber still reaches the same temperature as it's air cooled brethren.

The weight saving is minimal for the outboard as most of the weight is from the flywheel, leg and transmission.

The two cycle is king of the commercial outboard world. If there's fuel and magneto output, it'll run. If you drown it, drain it and fill it with fuel/oil mix, it'll run. Piston rings are only an issue if the port is more than 40% of the circumference of the bore, or build them like you with the end gap overlapping the port.

M18E2 is an 18hp outboard. Not a ship.

Fuck me, you have no clue.

>>16844452
Would this make for a better Dual Sport? I know a 2t with premix isnt considered optimal for street use

>>16846563
>2t
>dualsport

Why?

>>16846760
Muh reng-deng-deng

>>16847262
Best sound ever, not to mention the smoke smells good

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>>16844661
i like your derbi cylinder on that pa50. i have a hobbit/camino and an urban express myself along with some other bikes ive built

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>>16844452
>Buying a kucktm ever

Ayy lmao!!

>>16844480
You're confusing service intervals with reliability there.

>>16844500
Yet they don't have a valvetrain.

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>>16848535
Not having a valve-train doesn't mean there is less chance of something to go wrong. I'm not on either team, I love both cycles for their advantages, just saying.

That said, I only sold my '89 CR500 was because I knew I would die before service interval.

>>16848566

Not having a valvetrain very much means there is less to fail both over time or suddenly in operation. There are no lifters to collapse, no camshaft lobes to wipe from contaminated oil, no valve lash to run out, no belts or chain guides to wear, no cam seals to fail, no valve stem seals to weep, no chance of a retainer failing and dropping a valve, no valve seats to fall out, no valve springs to collapse, no cam bearing to fail, there is no danger of valve and piston collision from loss of valve timing, no sludge to form under the rocker cover, no rocker cover gasket to leak, no chance of rocker arm bearing failure, no shim to wear on the lifter bucket and no exhaust valve to burn.

There's a few ways not having a valvetrain reduces risk of failure. Two stroke isnt without its faults but the strength is in the simplicity.

>>16848501
Literally the only company putting out new 2t's

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>>16844452
2 strokes are like rotaries
theyre great IF maintained properly

>>16849533
The wankel of the 787b wasnt known to fail

>>16849534
rotaries overall have a bad reputation with reliability because normies dont know how to maintain them

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Oil injection? Yes please!

2 smoke supermoto funs.

>>16849533
>>16849534
O N E W I N
N
E
W
I
N

>>16849590
This is all I am worried about. How it will help the bike on the street

>tfw hoonan around on a 230lb 60hp 2t

>2 stroke
>not reliable

opposed to 4 stroke mx engines that need an expensive as fuck rebuild every x hours!

>>16849591
Everyone but delusional mazda fanbois knows that the 787b was crap.

>>16849784
>win
>is crap

Explain this, atheist.

>>16849971
>wins one race the whole season because everyone else choked

>>16849782
If I am not mistaken a 2t needs maintenance at the same rate as a 4t but at a third the cost.

>>16850424
Wrong

>>16845269
Yeah looks like you got alot of dirt and bald spots to mow with those.

Take better care of your damn lawn, and buy a four stroke with a neutral gear faggot

>>16844452
Provisional hype, but I'd rather see a return of rotary engines to motorcycling if we're going to jump on the Fuck Emissions oil-eating train.

>>16844480
>run 5000 miles
>do a top end rebuild
>runs another 5000 miles

>>16851879
Uh, when it comes to motocross bikes, its 100% correct, with some reliability edge going to the KTM 2strokes.
Learn something, son. 4stroke MX engines are not built to last. At all.

>>16852342
Not to mention the price difference

>>16852352
4t are cheaper in the long run than 2t

>>16853020
lol what