I predict we will be able to buy an emissions friendly 2-stroke powered road vehicle in the next 5 years. Being a snowmobiler (sled-head), I follow 2-stroke developments. In the past few years, the EPA mandates have driven the sled industry to clean up it's act. BRP, formerly the recreational division of Bombardier and makers of Ski-Doo sleds and Sea-Doo watercraft, has taken the lead in developing clean burning 2-strokes. Others, such as Yamaha, have given up and jumped to heavy 4-strokes. BRP literally owns all the direct injection technology now and has a 600cc 120hp 2-stroke that is cleaner than most 4-strokes and gets 22 mpg or better in a vehicle that is constantly under load and turning a 45lb rubber track with significant rolling resistance. Industry average for 600cc is about 13mpg. Dealers are demonstrating how clean it is by starting it INSIDE the showroom. There is no smoke at all.
This technology (E-TEC) has been in consumer products since 2003 in the form of Evinrude outboards, which BRP owns. It has even won an award from the EPA for clean air technology. In an industry that historically is known for smoking motors and fouled plugs, BRP is offering a warranty on spark plugs for 2 years.
The Dodge Neon was originally slated to be a 2-stroke and Lotus just released a prototype 2-stroke. With the current voice-coil direct injection technology, it's now a possibility to produce a 200hp motor that the average man could still lift and would fit in a space half the size of a modern multi-valve 4 cylinder. Add a modern CVT in the mix to keep the revs where the power is and we're talking about a low cost, light weight, clean, high mileage package.
Has anyone seen the 3 wheeled vehicle called the Spyder? That's produced by BRP. My guess is it will likely see 2-stroke power in the future.

Any 2-stroke nuts out there?

Me and the kids...

Amazing torque from a hi rpm set-up.At 5500' elevation the fumes were pungent.

Used to race (grass drags) in the late 70's early 80's with a Cat 6000 then a SRX.
Two Strokes have always fascinated me. Drag racing was 10% engine and 90% clutching along with chasis.
It was fasinating that the engines are so simple and complex at the same time. I about wore out Gordon Jennings "Two Stroke Tuners Handbook". I have always felt the Two Stroke + the clutching on a snowmobile would make a heck of a power train for a light (under 600#) auto.
A 12 sec quarter was easy with a stock snomobile, The more radical stockers could much faster.
The 440 mods could exceed 100 mph on radar in 400 ft in 78, much better now.

I read somewhere that back in the mid-90's Honda built a direct-injection 400cc 2-stroke MX'er that actually raced in Baja as an experimental bike? Apparently it was cleaner burning than their own 4-stroke XR baja bikes. Kinda funny as Honda has always been known as more of a '4-stroke' company....

Regs are always one or two steps ahead of development.

We will see a '5-cycle' water injection 4-stroke (to form steam from waste heat) first. Malcom Smith has a KTM running st up that way.

The EPA dead set against any possibility of 2-strokes coming back, never mind that the information used to create the first banning regs for off road equipment was faulty data based on a Yamaha RD400 commuted to work every day, not on an OHV in OHV use.

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1967 FE 390GT engine: 416 CID 233/238* @ 0.050 Solid Lifter w/ 4 spd TL.
1968 GT/CS Mustang. 289/c4
1995 Mercedes e320 I6 DOHC, 216 HP wagon.
2003 Tundra SR5, 4.7 DOHC, 4x4.
Another Galaxie (one day.)

Oh and a Bicycle - daily driver to save gas for the 'F'un 'E'xcursions.

I have smoke in my blood. Nothing gets me going other that race gas burning than a good premix. Ive been riding dirt bikes since little and rode the Yamaha RZ350 for years. The last street legal 2stroke street bike. This was last in production in 1985 in the states. Canada had it for a long time after that. Im not sure when the quit. Pippin has it right about the epa. Everything will be 4 stroke in the future for the powewrsports. Out of the big 4 Jap bikes only one has a 2stroke MX bike. Jetskis are going 4 stroke, weedeaters, mowers etc. BRP is getting away from the 2 stroke at least in watercraft and boats. Its a dying breed that i will miss. I wouldnt be surprised if the sleds are next. But I will still ride my CR until i can no longer get pistons and rings. Keep smokin'

I always had Ski-Doos growing up in NY, older folks in the family liked the wider track Arctic Cats- except when I'd smoke past them LOL. A buddy was a wrench at the local Ski-Doo/ Yamaha dealership, had a 797 Blizzard triple in '72- I used to help him start it, no chokes, I'd hold my hands over two carbs while he cranked it, it'd start on two, then cover #3 for a second, and you're live. And yeah, taking a little weight off the clutch counterweights was like going to a higher-stall fluid torque converter

Took 3 guys to pull the recoil (which often broke). Not a particularily fast sled, and the 400 F/A's would run circles around them. My buddy had a 74 400 elTigre' that was insanely fast. 440 Sno Jets were right up there too. Plenty of good times back then. Been a long time since I've gone riding, but sure want to do it again. Fun, like nothing else.

they have been trying for an automobile engin that is emissions friendly. It may seem impossible, but with direct injection things that weren't possible with carbs are possible now.

Pete's Ponies
Mustang RUSToration & Performance

Like the SDI (Semi Direct Injected)in the Ski Doo. I think that started in 04-05 time. Now they have a 600 DI (Direct Injected) Sled. More power, less fuel consumption and can hardly smell the exhaust. Also there oil injection is computer controlled. Here is a link for ya!

http://www.ski-doo.com/brphtml/skidooenginetech/en/Index.htm

http://www.ski-doo.com/en-US/

Also they have they lightest chassis out on the market. I love Skidoos and Yamaha's are my favorite sleds!

"The Poor Mans 427"
http://www.fordification.com/poormans427.htm

1973-1979 Ford Truck Enterprise Link:
http://www.network54.com/Forum/399900



Wes Adams FORD428CJ
Built Ford Tuff With Good Ford Stuff
79 F-250 X-Cab 4x4 with a 6.9 Turbo Diesel
64 Falcon X-Ram 428
55 FORD Truck 4-link Rides on air with X-Ram 428
2000 Yamaha V-MAX VMOA#4277
2000 Yamaha 700 Mountain Max
2001 Polaris 600 Edge X
2001 Polaris 500 SP

Yeah I'm a nut for 2 strokes and Power Strokes LOL. 5th and 6th sled are going to be Mod sleds. Here are some pics for ya!

















"The Poor Mans 427"
http://www.fordification.com/poormans427.htm

1973-1979 Ford Truck Enterprise Link:
http://www.network54.com/Forum/399900



Wes Adams FORD428CJ
Built Ford Tuff With Good Ford Stuff
79 F-250 X-Cab 4x4 with a 6.9 Turbo Diesel
64 Falcon X-Ram 428
55 FORD Truck 4-link Rides on air with X-Ram 428
2000 Yamaha V-MAX VMOA#4277
2000 Yamaha 700 Mountain Max
2001 Polaris 600 Edge X
2001 Polaris 500 SP

Are the still a Canadian company?
I traded a 62 Comet for a big Can Am dirt bike plus cash. Only rode it once but that took ten years off my life. Think went really good once it got into the power band and using full throttle the first time you ride it isn't advisable !

Had a 750 triple when I was a kid. Sitting here thinking about it I am amazed I am still alive. It was the quickest crotch rocket for a long time. It was so fussy on tune, I bought a new set of racing plugs for it once and just about went off the back when I cracked the throttle. That ring-ding sound wasn't much for picking up chicks.

We had this kid in the little town in NY where I grew up, big Mongo kid, 18 in ninth grade if you know what I mean, and looked JUST like Fred Flintstone. Had a '64 4dr Custom PI and would drive us anywhere if we'd hang out with him, always got places pretty fast (we used to take him bowling, and he'd get us thrown out, as he was pretty good at breaking pins), and a '71 Honda 175 Scrambler- which he flogged mercilously- burnout after burnout, 10K and drop the clutch over and over, and he was at least 265. He went to work for the local John Deere dealer, stocking shelves in the parts room, sweeping up. Then the dealer took on Kawasaki as a sideline- Kawi Bighorn in the showroom next to a 4020 Deere LOL. Gets in the first Blue Meany- and Mongo buys it. Wheelies past the school every day at lunch, 3 rear tires in the first month, ringadingadinga. Offers me a ride one day, I'm young and stupid, OK- 1,2,3 gears on the back wheel, and I've got a death grip on the back of his collar, if I go off the back, he's goin' with me... hits 100, and locks up the front brake for fun. One ride was enough- but believe it or not, he never went down on it, and the 75 yr. old town cop couldn't catch him in his 350 Impala

You hit them and they twist up. The 750 triple was unbelievable, and you were in over your head pretty much all of the time. Pancake seat, and all you had keeping you on it was your boots cocked in the pegs and a death grip on the bars

Those were the days.

I had the 350 version which led to buying a big 750 with chambers and cafe-racer fairing all blacked out, it was a fun ride.

However I used to frequently smoke cylinders on that until I got rid of the oil injection and just ran premix.

It got to the point on all of them that I would only fix the affected cylinder, the 350 version had 3 different bore sizes, but still wheelied like no other bike I ever had LOL


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- 70 Fastback Mustang, 489 cid FE, TKO-600 5 speed, 3.70 9 inch
- 71 F100 shortbed 4x4, 397 cid FE, headers, Street Dominator, 280H, 5 lug Dana 60, 4 speed

...H2 is the model designation of my 1973 750 Kaw' triple.

35,000 miles on it, then I got hit from behind at 2am, by a drinker that had just left a wedding reception. He had 2 passengers with him, in his Corvette, and the police report said all witnesses reported the 'Vette was weaving through traffic @ 100 mph.

He went into the guardrail, with my bike behind him, and me in the curb lane, 150 feet behind.

I'd done a little dirt bike and 400 putting around when the kid working with me at the local gas station showed up with a new 750 H2. We were both 16, and I thought I was pretty cool. I took it out for a ride and kinda rolled throttle through the first couple gears. Hey - this ain't that bad - lets nail it in third and see what it's got. Front tire comes up, gas tank in chest, hanging on to the bars in fear of innevitable death, finally let go of throttle and take a very wobbly landing and a low power putt back to home base. Never rode a fast bike again....

Barry Rabotnick
Survivalmotorsports.com

in the low 9's (when it wasn't broke LOL) 30 years ago.
And he lives to tell about it!
Ron.

me to add it to the gas tank in his Volvo???????????????Ring-Da-Da-Ding!