[2009 YFZ 450R Broken Frame] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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2009 YFZ 450R Broken Frame
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Posted by: Quadevil

hmmmm not looking so good...

http://i25.tinypic.com/im8mlz.jpg

http://i29.tinypic.com/28mcyko.jpg

Posted by: shawn3389

man that doesn't look good

Posted by: zoey

What kind of riding do - did u do?

Posted by: tedwilley

[QUOTE]Originally posted by Quadevil
[B]hmmmm not looking so good...

http://i25.tinypic.com/im8mlz.jpg

I'm guessing this was raced in France by the
YAMAHA RACING FRANCE sticker.
Must have been a HARD landing. How bad was the rider injured?

Posted by: k4f5x0r

hmm. looks like TNT1's analysis of the yfzr is pretty accurate.

Posted by: tedwilley

Whatever caused this wasn't normal riding/jumping stress. The engine cradle is broken through and it isn't aluminum.

Posted by: LTR450_#67

Casing super hard?

Posted by: jakes

Looking at the photo's - I also noticed the front engine mounting bolt is either broken off or lost?

Posted by: #17YFZRACER

also looks like that bike has had the straight piss beat out of it

Posted by: JR3

quote:
Originally posted by hondarider11
I dont care if that bike was beat or not. A frame should not crack like that.

thing looks like it was rolled down a moutain dude

Posted by: Quadevil

The quad is not mine (i'm more into the orange thing

).
I got the pics from another forum and yes, it seems it's from some pilot from Yamaha Racing Team in France.

quote:
Originally posted by JR3
thing looks like it was rolled down a moutain dude

"Ride it like you stole it"

Posted by: RobRacing

Man it looks like the only thing holding the frame together is the engine! I wonder if it is broke like that on the other side as well.

Posted by: Quadevil

quote:
Originally posted by JR3
thing looks like it was rolled down a moutain dude

No. It was run in "6H de Bastogne & Nuts Cup". It's kind of preparation race for 12h Pont de Vaux.
So, it broke the frame in a race.

Posted by: Quadevil

This was told to me by the person who took the photos and saw everything.

quote:
Broken without warning!
The quad has 6 months.

No reason, no crash, nothing!

Just a yamaha

I laugh

I translated in google from Dutch to English.
If anyone doubts, i can give you the link to the forum where this is.

Posted by: Quadevil

From a guy who was at the race:

quote:
It happend during a 6 hour endurance race in Belgium (Bastogne). A very hard track with a few jumps.
They guy never crashed it. Some nerfbars and a rear axle got broken too during the race.
I thinks that's the problems with only testing in the States. We've got some rougher/harder tracks due to harder landings and underground.

Posted by: zyoung04

this may be a dumb question but what is that on the head pipe?

Posted by: tedwilley

quote:
Originally posted by zyoung04
this may be a dumb question but what is that on the head pipe?

It's an expansion chamber. It effectively lengthens the head pipe to provide more low end.

Posted by: mxblastermx

whatever happened the quad doesnt look very well takin care of at ALL, ive had no problems with my 09 besdies the parking brake

Posted by: ikas

Here is a video from 08 at the track they were riding on (i think)

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/ToKQS1XRDvI&hl=en&fs=1&color1=0xcc2550&color2=0xe87a9f"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/ToKQS1XRDvI&hl=en&fs=1&color1=0xcc2550&color2=0xe87a9f" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

And pics from 09: http://www.planetquadracing.be/copp...s.php?album=100

Posted by: Jason Hall

I would guess that after the frame broke the motor mount bolt was taking ALL the punishment trying to hold the frame together. That Is Scarry!!!!

Posted by: GWTT

Look at the rear of the exhaust. its into the fender bracket. something was or came loose to do that. I saw Dustin Nelson's YFZR pics at Lake Elsinore MX park in Elsinore, CA earlier in the yr. one guy crashed, another rider parked at the landing. Nelson didnt see the guys there (bad spotting) and pretty much doubled into another quad. destoryed the frame. There has to been alot of stress on that frame or bad preperation. motor mounts left loose, or possibly dented the alumium frame somewhere else causing the weakest link to fracture. No means a bad frame or faulty production. just beat to hell.

Posted by: Mean250r

there is no way in hell that frame snapped like that from normal riding/jumping . Who ever owned that bike beat the piss out of it!

Posted by: dehner47

how can you all say the bike is beat and not takin care of. the dude was riding/racing. but i guess you guys all have some special bikes that dont get muddy or dirty while riding/racing.

and i dont care if dude beat the bike day in and day out. its a brand new bike. it should not break the way it did. i'm not saying dude didnt land hard or ride it hard. i'm just saying a new bike should not break the frame the way it did.

most likely, the top portion of the frame broke arouund were the pieces mount together and twisted frame so hard, it snapped bottom rail. just my thought.

Posted by: Dansc90

I agree with dehner. I'd say something on the top frame came loose, causing the top to break, and then after that broke the only thing holding the frame together were the motor mount, and bottom frame rail, And it just couldnt take the stress. And when the frame breaks like that it doesnt just mess with the frame. It would have messed the plastics up and everything. I doubt it wasnt taken care of. Other then it being dirty, and from what the frame messed up it looks like a clean bike.

Posted by: dehner47

^^^^ exactlly. the only thing that anyone can really say is the pipe looks a bit funky. but other then that, bike looks like it could be a pretty sick bike.

do the yfzr's come with the expantion chambers on the stock head pipe or is that an aftermarket pipe thats just a bit rusted up?? cause if its an aftermarket pipe, thats horrible. aftermarket pipe should not rust up like that. stockers, yes.

Posted by: Dansc90

Its an Aftermarket pipe. I know dasa makes them, but i'm not sure who else does. And im not sure if its rusty, or its just because of the mud baking on the pipe. Mine looks like that after a long ride until i polish it up. But then again If he knows what hes doing it could just be a stock pipe he put an expansion chamber on. It doesnt look it tho.

Posted by: micha-nf

That is a DOMA exhaust. Is made in Belgium and here in europe very popular.
That is not rust its only baken mud.
The expansiton chamber is for reduce noise.
In europe the competition noise level is only 94db and this exhaust meet this level without a Quiet Core Insert.

Posted by: BakerRacing40

i blame all that yamaha power... those pics were from r&d before it was released, they detuned it and changed the design up for the production model.. but that engine in the pics dyno'd at 113.8hp.....

Posted by: bferg911

quote:
Originally posted by BakerRacing40
i blame all that yamaha power... those pics were from r&d before it was released, they detuned it and changed the design up for the production model.. but that engine in the pics dyno'd at 113.8hp.....

113.8HP????? Dude you are smokin some good sh*t!!!!

Posted by: BakerRacing40

quote:
Originally posted by bferg911
113.8HP????? Dude you are smokin some good sh*t!!!!

na man my uncles friends cousins half brothers aunt on his mom's side dated a guy that knew the test riders from Europe....

Posted by: bferg911

quote:
Originally posted by BakerRacing40
na man my uncles friends cousins half brothers aunt on his mom's side dated a guy that knew the test riders from Europe....

You're killing me bro

Posted by: mxpimp2000

quote:
Originally posted by zyoung04
this may be a dumb question but what is that on the head pipe?

dosent give the bike any more power at all its to lower the dbl of the exhaust since 99dbl is the limit in ama racing. byrd and a few other that run really loud pipes like dasa use these cans to lower sound levels