Comments on: Direct injection keeps two-stroke alive for Bombardier in 2012

By: RZ350

RZ350 — Sat, 10 Sep 2011 14:58:02 +0000

Man I am dying for a street 600cc 2T. I think we ask too much of the little 2Ts and that’s why we have the issues of emissions and wear. Put together a 120hp 600cc 2T and it would last forever, have a big fat power band and weigh less which would lead to a better handling street bike.

By: Rob C

Rob C — Tue, 24 May 2011 17:46:10 +0000

The moment a CA Green Sticker off-road bike (read KTM EXC or similar) shows up, I am plunking down money on it. The idea of $1500 four stroke top end rebuilds makes me want to throw up when I can redo a iron liner top end on one of my old two strokes for $200 to $250. Right now I own no four strokes (have in the past) — I am just done with messing with the valve gear.

also, with careful DI tuning and a catalyzer, I think there would be no reason a dual sport with the same two stroke engine could not be marketed. Same advantages of light weight, simpler service, and really fun power.

By: VintageBlueSmoke

VintageBlueSmoke — Tue, 11 May 2010 15:18:51 +0000

Bring back the 2-stroke Can-Am Motocross bikes! I still race my 1980 QIII 250 in local Enduro and motocross against modern bikes. I’d buy a new DI Can-Am MX’er. MX7 anyone?

By: 2STROKEREVOLUTION

2STROKEREVOLUTION — Mon, 03 May 2010 18:03:35 +0000

@motoman465

I am a believer in choice for dirt bikes too. I own a KTM 380SX (2-stroke) and a Honda XR250 (4-stroke). But when DI comes to 2-strokes there is not a single benefit of 4-strokes so might as well rid the world of those expensive, overweight engines.

By: 2STROKEREVOLUTION

2STROKEREVOLUTION — Mon, 03 May 2010 18:01:29 +0000

@RM500
At the time of the switch to 450Fs & 250Fs the manufacturers realized they could profit more from a change to 4-strokes. If they advertise them as much better people will be willing to pay a premium charge. With the go ahead they put in a lot of development and advertising money. Why would they want to switch back with all that invested money?

By: motoman465

motoman465 — Mon, 03 May 2010 02:47:57 +0000

I am sure most of the manufacturers have direct-injected two strokes, but they make more money from the four jokes! If you look at it from a business stand-point, it makes sense to keep those DI two-strokes off the market until someone else releases one, then the others will release theirs in order to keep up and not lose any market share. The big 4 did the smart thing to increase their bottom lines with the four strokes and all the marketing hype. They just didn’t count on the public starting to wise up to the negative aspects of the four strokes. I still firmly believe that the two strokes should live right next to the four strokes. What is good for one rider may not be good for another. We want the ability to be able to choose what we want to ride/race!!!

By: RM500

RM500 — Fri, 30 Apr 2010 21:29:43 +0000

So tell me. WHY havent any bike company built a DI twostroke dirtbike yet?? (or streetbike)
The technology and knowledge is far from new. Is it just business politics?
Its something fishy about it… is the pro 4stroke companys buying out this “THREAT” ??

By: 2STROKEREVOLUTION

2STROKEREVOLUTION — Thu, 29 Apr 2010 20:06:23 +0000

This is a big improvement. I have been following the E-Tec sleds since the 600 came out over a year ago.
The 600 E-Tec with 130hp gets 21mpg. The 1050cc Yamaha 4-stroke with 130hp gets only 19mpg and weighs 100lbs more. This new 800 E-Tec makes 155hp and gets 18mpg. That is only 1mpg less than the Yamaha while making 25hp more! It also weighs about 80lbs less. Same MPG, less weight, more power, wider powerband, cheaper, and less maintenance. What does a 4-stroke do better anymore? Nothing.

By: Sachsgs250

Sachsgs250 — Thu, 29 Apr 2010 03:06:06 +0000

This motor is rated at 155 hp! Can you imagine a 400cc dirt bike based on half this powerplant? I’m thinking some kind of “traction control” would be needed.