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View Full Version : Yamaha's new 450 four stroke


Tommy Warren
10-12-2009, 10:45 PM
Anybody seen this yet? fuel injection in the front and the exhaust comes out the rear of the motor. I think it makes sense but I'm sure they could of figured out how to get rid of the "tornado" pipe and just run it straight without losing back pressure. seems kind of counter productive. Wonder when these motors are gonna hit the YFZ.
http://www.yamaha-motor.com/sport/products/modelinnovation/209/0/innovation.aspx
Wired
10-13-2009, 12:42 AM
hit the search button ;)
old news
One_Bad_400
10-13-2009, 11:07 AM
ya. old news, would be cool in the YFZ-R though.

BTW: they've had this technology in they're scooters for quite some time now
Brad77
10-13-2009, 12:01 PM
Also Cannondale used the reverse cylinder design. I always thought it made pretty good sense to put the intake on the front.
Tommy Warren
10-13-2009, 03:49 PM
Originally posted by One_Bad_400
ya. old news, would be cool in the YFZ-R though.

BTW: they've had this technology in they're scooters for quite some time now

HAHAHA well I don't follow scooters too closely. and i didn't follow yamaha until I got my raptor a month ago....my bad.
One_Bad_400
10-13-2009, 04:01 PM
shoulda bought a scooter instead of that raptor. way more power and suspension. its crazy how much more advanced the technology is in scooters and dirt bikes compared to the four wheeler world! :p