that's never going to work, Cannondale proved that I like that were seeing out of the box thinking finally. I loved it back when they raced factory protos and were crazy inventive. EFI and 4 valves (not 5) interesting. - I find the bike kinda ugly like the 250F - Wonder if the black lump where the airbox should be is part of the exhaust? Who is going to tackle forkless front suspesnion. I have been waiting way to long for that. And this might be a good indication they are prepared... "Accessory GYTR Power Tuner lets bike tuners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider and track conditions." More info here - http://www.cyclenews.com/articles/new-bikes/2009/09/08/yamaha-unveils-2010-yz450f interesting... "The cylinder is offset so the connecting rod is vertical at the moment of greatest combustion force, minimizing piston friction against the cylinder wall that could rob power."
I always wondered why they put the intake in the rear and exhaust on the front of the bikes, that seems backwards to me.
Wow, I never thought I would see anything that out of the box come from Japan. So does the exhaust wrap around like a tuba under the seat? I guess the airbox is under the gas tank right? I kinda like it the more I look at it. http://www.motocrossactionmag.com/M...0&tier=3&nid=A7C44166D63F4790BECFE2FBBC7CB0A6
How old are you? yamaha reinvented the 4stoke gig with Doug Henery in 97. yamaha has always been the leader in new stuff IMHO for the Japanese manufacturers. Modern 4st dirt bike mono shock power valves boost bottles dual leading shoe brakes water cooling aluminum frames (80 prototype racers) Forkless production bike... Longest running 2 stroke street bike... ETC
Like Motosportz, my first reaction was, "Aaaa... it's a Cannondale!" See what Husaberg has started. That's why I think it'll be a bit before we see a new Husky big bore 4T motor. I think they'll let some of the dust settle and see where this technology land. Especially since BMW is making all those "adjustments" their 450. Best to wait a bit and see what holds water and what don't.
Looked it over a little more on a few sights and I like it. Seems very well thought out, with lots of new "out of the box" thinking.
Funny thing is when BMW came out with the 450X and centric CS sprocket i thought to myself... Been done before and discarded as not an advantage. Yamaha had a design like that and those who rode it said the the lack of suspension loading under acceleration was a bad thing not good. On paper it makes sense, in real world use it did not pan out. It works but there are trade-offs. other designs that did work great were discarded for complexity and longevity like the Boyesen link floating swing arm pivot. Works great but cost to much, is to complex and maintenance intensive... Decoster said this was the best front suspension he ever used but again design and longevity issues... Don't be afraid to try some of this stuff out yourself
2010 yz450f finally leaked i'll still stick with my huksy, but its still pretty cool, exhaust pipe is nuts yamaha website http://www.yamaha-motor.com/sport/products/modelimagelib/209/5/1/0/image.aspx 2 videos http://hellforleathermagazine.com/2009/09/2010-yamaha-yz450f-reverse-cyl.html
did anyone say DKW earles fork??? and if you don't like it or find what you want you can Kramit (Kramer Italia) Fellegara did real well at the German 89 ISDE on a Kramit 250 (I think it had a YZ250 yamaha motor or maybe a rotax liquid cooled 250 motor) wow that was ramdom...
Curious how hard it is to do simple maintenance....check valves and change plug etc etc?? Love the look and the change
I think if you pull the fuel tank it will be easy to get to the head and valves. Something else I noticed is it's not going to be easy designing a larger fuel tank for that thing... there is no place else to move the fuel pump. The funny thing is we all know what it's like to break a radiator shroud on a modern dirt bike.. do it on the new Yamaha 450 and you pretty much destroy half the air box.
I wonder why more manufactures don't use the frame spars for fuel like a Buell. There is already unused space there and most of it low and central.
This is good thinking. The header pipe must do a few contortions for length somewhere. Is it the photos or is the blue now emulating TM?
That airbox is getting air before it's heated by the radiators The lower shrouds look a little huskyish All of that hot exhaust pipe surrounding the rear shock can't be good I like the white one, with some black forks it would look almost as good as a husky
