New Yamaha YZ450 out

**laserracer** · 9th September 2009, 07:19

wow

The new yamaha yz450 has been released over on thumper and tranzword mx
4 valve rear slanted engine ..fi..4 valve, ...i like it

might have to sell the wife and buy one
http://www.thumpertalk.com/forum/sho...d.php?t=822351
http://www.youtube.com/watch?v=Lj5C_hskLoc

**little.whittle** · 9th September 2009, 07:35

Cool can you give a link?

**scorry** · 9th September 2009, 07:43

heres the direct link from yamaha, so you know its official now
http://www.yamaha-motor.com/sport/pr...09/0/home.aspx

**barty5** · 9th September 2009, 07:44

Sweeeeeet love right now to get one

**scott411** · 9th September 2009, 07:47

its cool to see something different, the exhaust looks weird with the big turns in it, be interesting ot see how much difference it makes,

**Teava** · 9th September 2009, 09:26

Originally Posted by scott411

its cool to see something different, the exhaust looks weird with the big turns in it, be interesting ot see how much difference it makes,

yeah looks like they needed those turns in the exhaust to get some torque back maybe.....

**takitimu** · 9th September 2009, 09:28

Originally Posted by scott411

its cool to see something different, the exhaust looks weird with the big turns in it, be interesting ot see how much difference it makes,

I wondered about that spiral ( hurricane ), my guess is no piston slap, Fuel Injection & clean air will combine into one helluva responsive engine. Though getting rid of the spiral would surely be a good thing, though maybe it'll stop people sitting on the seat for to long

, or it's for winter USA to give you a heated seat ?.

The other cool part is the rear suspension, I wonder how much diff having freedom to position the shock where they wanted it will make, danger / rob ??.

**K6K** · 9th September 2009, 09:33

It's not really new even for Yamaha...the reverse cylinder TZR250 of the early '90s was the same. And that was nicknamed the 'reverse seizure'! I think the rear angled cylinder will make a difference in the handling but not as much as the new husaberg with the crank right up close the the COG. I do hope this moves to the WR's the follwoing year though...and the 250f's if it works out.

**scott411** · 9th September 2009, 09:35

some really good photos on www.motorcrossactionmag.com

also interesting yamaha have dropped their own 5 valve heads, they did it with the r1 a few years ago,

**CRF119** · 9th September 2009, 10:04

Nice bike but its 5kg more then the CRF thats a big differance and yes i am comparing both with fuel etc in them. Should be interesting to see i have never liked the overall feel of the yamaha no matter what bike i ride, keen to test this one.

**Reckless** · 9th September 2009, 10:22

Interesting! lots of new stuff, great looking bike, very sexy.
Be interesting to see how it all goes together. The first year usually brings forward any wear and tear issues with a new design. Increased compression, wider bore, short skirt piston?? But love the way they've turned the engine around, lowered the tank etc.
Hopefully this direct injection thing with 2strokes will take off and we can see them race against each other again!
Looks like we might see a lot of innovation in the next couple of years from all manufacturers.

**Shorty_925** · 9th September 2009, 10:25

Anyone know what price they are going to be selling at..? Air filter up under the seat reminds me of the old Husabergs.

**Paulus** · 9th September 2009, 13:07

Originally Posted by K6K

It's not really new even for Yamaha...the reverse cylinder TZR250 of the early '90s was the same. And that was nicknamed the 'reverse seizure'! I think the rear angled cylinder will make a difference in the handling but not as much as the new husaberg with the crank right up close the the COG. I do hope this moves to the WR's the follwoing year though...and the 250f's if it works out.

Also remember the ill fated Cannondale 400. It had a similar layout. All the reasons for it sounded good but the bike bankrupted the company before they got it competitive.

**CRF119** · 9th September 2009, 13:26

People will buy it i think it has a RRP in USD for around 7-8g. You know the old saying what wins on Sunday sells on monday and with James on it id say it will be winning.