KTM SX250 2T 2013

[Marco810]

EFI is not a step anywhere but sideways.  

that's what i'm thinking as well, aside from the cleaner burning, the only reason 4's went to it is for throttle response, which 2 strokes already have great throttle response, whereas on a 4 there is a bit of a lag between cracking the throttle and you moving forward

Its more of a vacuum issue. When running those high strung cams the low rpm vacuum goes to ****, making a carb less ideal

And the whole thing about weight wouldnt be much of a deal if you used lipo batteries. You could charge them before a run or settup a charging system

That is due to lack of plenum volume.  Motorcycles don't really have a manifold.

A camshaft with long duration lobes is going to have vacuum problems, plenum box or not. But yeah less plenum doesnt help either

I found myself arguing over 4strokes, i dont even like 4stroke 

[MXLord327]

"A camshaft with long duration lobes is going to have vacuum problems, plenum box or not. But yeah less plenum doesnt help either"

Yeah, but the rough idle sounds sooooo cool!!!

[Recovered]

In a Camaro.

[Super Trucker]

I see about 30 potential problems with that injection kit. The sensors,you have to flash the ecu if ya do any mods, too many connections and fittings,etc. The 2-st is a simple reliable setup, don,t know why someone would screw that up, by installing a injection kit. Example sensor is weirding out, you drove 2.5 hours to ride and now your bike won,t start, I,m sure the dealerships would love the injection kit. Or your in 4th gear tapped out,on the jump face the fuel pump,sensor,ecu, 1 of the many fittings has a problem, game over. There,s enough risk with the carb, catch a rock from a 450,contact with a rider,then a  big impact on a landing and your carb is knocked out of the boot.

[chump6784]

Without DI 2 strokes WILL become a thing of the past. If you want to see them in the future DI will make it possible. There is no problems with durability on 4 strokes kits so i dont see why a 2 stroke will be any different.

As for weight, the 4 strokes gained about 5 pounds. Big deal

[Marco810]

I don't believe for one second 2strokes will be faded out completely any time soon. I know plenty of people who want or buy new 2smokers, if not for mx, trail riding

[factoryX]

Doubt they will fade out, especially after what Renner pulled yesterday. All EFI will do is help.

[TMKIWI]

You do not need a battery or electric starter to run a DI system.
ETEC's can be rope started with no battery.

[Jeram]

I see about 30 potential problems with that injection kit. The sensors,you have to flash the ecu if ya do any mods, too many connections and fittings,etc. The 2-st is a simple reliable setup, don,t know why someone would screw that up, by installing a injection kit. Example sensor is weirding out, you drove 2.5 hours to ride and now your bike won,t start, I,m sure the dealerships would love the injection kit. Or your in 4th gear tapped out,on the jump face the fuel pump,sensor,ecu, 1 of the many fittings has a problem, game over. There,s enough risk with the carb, catch a rock from a 450,contact with a rider,then a  big impact on a landing and your carb is knocked out of the boot.

you could also die getting out of bed... so you should just stay underneath the blankets