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Old 04-25-2012, 09:58 PM   #1 (permalink)
old jupiter
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Join Date: Apr 2011
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Any other 2-stroke lovers??

Raced outboard hydros many decades ago, have always liked 2-strokes for their simplicity while recognizing their drawbacks (although is it really a drawback to be able to pull in front of some snotty tree-hugger in his Prius and bury him in the deadly blue cloud??!!).

I currently have a '76 Yamaha RD400C 2-stroke streetbike, one of the early good-handling quick middleweights of the kind that led to the coinage of the term, "crotch-rocket". But I can't justify having two bikes around, with all of the other junk, so I might be selling it to get something lighter in weight that I can load in the back of my work truck for chasing parts when the truck is on the job. It will be another 2-stroke, a '75-'76 Yamaha RD125 twin. I'll fabricate my own pipes for it, and do some mods to improve handling and make it look cooler.

So far I haven't related this to fuel efficiency, which is not generally one of the shining attributes of 2-strokes. Since this is a little bike with a little engine, the mpg numbers will be good compared to most cars, of course, and there are a couple of small tricks I'll do to improve them. But I expect that among this gathering of brainy gear-heads we do have some dedicated "'strokers" here. If so, has any of you heard of a company called Envirotech? They have engineered some sort of retrofit fuel injection system that they claim to have sold widely in the 4th World to owners of smoking 2-stroke scooters and tricycle-cabs and such. Have any of you managed to acquire one (the company won't sell them here), or know anything about this?

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