New Yamaha YZ450 out

[laserracer]

wow :drool: The new yamaha yz450 has been released over on thumper and tranzword mx
4 valve rear slanted engine ..fi..4 valve, ...i like it :niceone:might have to sell the wife and buy one
http://www.thumpertalk.com/forum/showthread.php?t=822351
http://www.youtube.com/watch?v=Lj5C_hskLoc

[little.whittle]

Cool can you give a link? :cool:

[scorry]

heres the direct link from yamaha, so you know its official now
http://www.yamaha-motor.com/sport/products/modelhome/209/0/home.aspx

[barty5]

Sweeeeeet love right now to get one

[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,

[Teava]

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]

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]

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]

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]

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]

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]

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

[Paulus]

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]

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.

[4stroke]

so to get the air filter out you have to pull the fuel tank and seat????

[laserracer]

$7990 us$ for blue/white and $8090 us$ for white /red
i think the tank pivots up so you can service the filter, but the seat probably has to come off. I was talking to a yamaha dealer this morning and he said theres a couple of the 2010 yz 450 demo bikes doing the rounds here in nz

[barty5]

$7990 us$ for blue/white and $8090 us$ for white /red
i think the tank pivots up so you can service the filter, but the seat probably has to come off. I was talking to a yamaha dealer this morning and he said theres a couple of the 2010 yz 450 demo bikes doing the rounds here in nz

ok so where dose one get a demo????

[CHOPPA]

Shock looks like it would get hot!

[ready4whatever]

YZ's are ledgendary. No doubt it'll go like 40 bastards

[laserracer]

ok so where dose one get a demo????

sorry Barty, he wouldnt elaborate, probably demo by invitaion only at this stage....B.. reeeaaallll NICE TO take one for a FANG though

[Buddy L]

With the EFI plug in tuner, Top teams could end up with remote tuners, One guy sitting back in the teams trailer monitoring things and changing fuel mapping etc depending on what part of the track your on.

[barty5]

With the EFI plug in tuner, Top teams could end up with remote tuners, One guy sitting back in the teams trailer monitoring things and changing fuel mapping etc depending on what part of the track your on.

fuckin good ay

[vr4king]

With the EFI plug in tuner, Top teams could end up with remote tuners, One guy sitting back in the teams trailer monitoring things and changing fuel mapping etc depending on what part of the track your on.


Ive read into this abit and i think the powers that be arent gonna allow it

[takitimu]

Ive read into this abit and i think the powers that be arent gonna allow it

How do you stop it ??, a smart person would put a gps onboard & use that :).

[vr4king]

Im fairly sure youd have to have some sort of comms device to change the maps on the fly from a remote location that would be easily identified by the race officials

BUT theres nothing to say you cant have a switch on the bars with a few different maps loaded already for track sections etc,Bit like the vortex setup but the number of maps could be increased,I cant wait to see the day average jo can get in and "tune" there bikes themselves hell im gueesing you could find a few more horses just by tweaking the factory settings and you could even change the bike to suit your riding style and even make the engine more reliable for trail riding etc

Fuel injection opens up so much more options with tuning etc
Bikes shops WILL be buying dynos if they dont have em already

[CHOPPA]

How do you stop it ??, a smart person would put a gps onboard & use that :).

They do this with moto gp but they are limiting it. I think the next thing your gonna start seeing with FI bikes at factory level will be traction control, launch control, anti wheely etc etc

[Reckless]

They do this with moto gp but they are limiting it. I think the next thing your gonna start seeing with FI bikes at factory level will be traction control, launch control, anti wheely etc etc

Yeh then the rider will also sit in the pits as well with a PlayStation remote? LOL!!

[barty5]

Yeh then the rider will also sit in the pits as well with a PlayStation remote? LOL!!

could save a few bones and just think bout the stuff you would be have a go at just cause you could with out risk to yourself

[Big Dave]

http://krnewsroom.blogspot.com/2009/09/yamaha-2010-yz450f-evolution.html

["D" FZ1]

We should have them in store by christmas......

[scott411]

the kawasaki's and honda already haev the tool so you can plug them in and change them in the pits, the kawasaki also has the data logging capabilty,
i have the kawka tool but have not had a good play with it yet

[K6K]

How do you stop it ??, a smart person would put a gps onboard & use that :).

I think last year the world SBK yamaha factory team used GPS adjustable suspension for different sections of the track. The suspension fluid has metal particles in it that can be adjusted by magnetic fields. This changes the viscosity of the suspension oil effectively upping the weight of the suspension oil in an instant.
I think using this for MX would make much more difference than remapping fuel injection on the fly. I think it was banned for worldSBK after a season though.

[takitimu]

I think last year the world SBK yamaha factory team used GPS adjustable suspension for different sections of the track. The suspension fluid has metal particles in it that can be adjusted by magnetic fields. This changes the viscosity of the suspension oil effectively upping the weight of the suspension oil in an instant.
I think using this for MX would make much more difference than remapping fuel injection on the fly. I think it was banned for worldSBK after a season though.

That's pretty high tech !!, I would have thought a small stepper motor on the compression/rebound(hi/low) would have be pretty nifty for MX/SX.

[takitimu]

James stewart on the new YZ450F

http://motocross.transworld.net/videos/video-james-stewart-1/

[FlangMasterJ]

I think last year the world SBK yamaha factory team used GPS adjustable suspension for different sections of the track. The suspension fluid has metal particles in it that can be adjusted by magnetic fields. This changes the viscosity of the suspension oil effectively upping the weight of the suspension oil in an instant.
I think using this for MX would make much more difference than remapping fuel injection on the fly. I think it was banned for worldSBK after a season though.

You blew my mind.