YFZ450
Sep 15 2003, 07:31 PM
Honda screws the ATV rider and gives all the technology to the dirt bike riders, again.
Here are the facts:
42mm CV Carb = Poor throttle response & slow revving
Longer Stroke motor = Slow revving
Detuned Cam Shaft = Low Performance
Steel Valves = Lower RPM Motor vs. CRF450 Titanium
Pro Link Rear Suspension = Less Travel - poor performance
Steel Frame - Vs. Aluminum CRF Frame
You Honda guys may talk trash about Yamaha but at least they consider us ATV riders equal to the bike guys.
Rubberneck
Sep 15 2003, 08:15 PM
Hmmm I think this may be a little biased coming from a yfz450 guy. I guess we'll see when the honda is whoopin up on the yamaha.
Dunerat
Sep 15 2003, 08:20 PM
I dont tink so !!!!!!!!!!!
5150HARVEE
Sep 15 2003, 09:03 PM
[quote]Hmmm I think this may be a little biased coming from a yfz450 guy. I guess we'll see when the honda is whoopin up on the yamaha.

[/quote]
Sounds like peeps doesn't want to face the truth bout Honda.
RRon3
Sep 15 2003, 10:09 PM
Is'nt the Yamaha YFZ450 a detuned dirt bike motor as well?
Kevin
Sep 15 2003, 10:43 PM
well since the quad weighs over 100lbs more than the crf, they probably felt the motor need more torque than what the crf version had. cv carb is a bummer though.
DUNE
Sep 16 2003, 08:15 AM
The aftermarket boys are going to have a field day modifying this fourtrax. I bet you will be seeing some real power out of it. it's got some good potential for being a fast and maneuverable bike... :bounce:
Rubberneck
Sep 16 2003, 08:21 AM
[quote]
Sounds like peeps doesn't want to face the truth bout Honda.

[/quote]
Not that at all. I won't have either bike. I really think they're gonna be pretty close. I just think somebody with a name like YFZ450 is gonna bag on Hondas just to do it. I would. :mrgreen:
Poiks
Sep 16 2003, 08:37 AM
I'm sure they're both kick-butt quads. But then I like both Fords AND Chevy's, so I must be wacked. :bandit:
Poiks
Sep 16 2003, 08:39 AM
[quote]
The aftermarket boys are going to have a field day modifying this fourtrax.
[/quote]
You can buy a hop-up kit from Honda for $299 that includes a more aggressive cam and other parts. I'd do it AFTER getting my green sticker, though. :wink:
Mike330R
Sep 16 2003, 08:57 AM
looks lke someone posted/pasted this over on ATV Connection forums. Here's one guys reply:
Are we really getting screwed or is some misinformation being passed and big deals being made of little deals... Let's have a look...
**42mm CV Carb = Poor throttle response & slow revving
People have been posting this assumption lately. The truth is Honda has never put a CV carb on a sport/race ATV and likely will not start on the TRX450R. The carb family used on the 400EX, 300EX, 250X, 350X, etc are butterfly carbs, but they **ARE NOT** CV carbs. Big difference. This family of Keihin carb is MUCH better than the Mikuni BSR used on the Raptor, DS650, and LTZ400, and incorporates a cable operated slide, not a vacuum operated slide like the BSR series.
Performance will not be as sharp as an equal sized FCR, but this carb is larger than the FCR used on the bike & will offer similar performance with slightly reduced throttle response.
Why didn't Honda just stick with the FCR? Can't answer that... If you don't like the carb they provided, it only costs $330 to bring it up to full CRF spec.
-----
**Longer Stroke motor = Slow revving
We're talking a 2.7mm longer stroke here... This is by no means going to noticibly make the engine "slower revving". In fact, it's only 1.4mm longer than a Yamaha YZ450F.
This is one of the small tweaks that Honda makes that sets them apart from other manufacturers. Other manufacturers would not have taken the time or effort to do the R&D to find how much extra torque is needed for the engine to operate best in a heavier quad chassis.
Take this as a good thing. Since the stroke is longer and the bore is 2mm smaller than a CRF, it's likely that the CRF cylinder will bolt right on, giving you an instant, 470cc stroker engine with factory parts.
-----
**Detuned Cam Shaft = Low Performance
Again, this is typical of practically all ATVs - they slightly mild down the cam to provide better bottom end for quad use. This will not be a dramatic difference like the quad having a utility quad cam profile vs a full CRF design. Take the 400EX for instance, there are very minor profile differences between the 400EX cam and the XR400 cam. Certainly not enough to consider one "low performance" and one "high performance". Changes were minor tweaks.
------
**Steel Valves = Lower RPM Motor vs. CRF450 Titanium
One word.... Reliability.
It's the sad truth that the typical ATV owner do not take as good care of his machine as the typical MX bike owner. ATVs have more load against the engine, get more abuse, and on average, get less maintenance. Sad but true.
Yamaha may have left titanium exhaust valves in their YFZ, but how much power do you really think that adds? Would you rather have a fraction of a HP, or a more reliable valve train?
------
**Pro Link Rear Suspension = Less Travel - poor performance
The CRF450R is equipped with "Pro-Link" suspension. Don't believe me? Check Honda's website. Pro-link is a generic term that refers to any Honda rear linkage suspension design.
Linkage does not increase travel, it controls how progressive the suspension action is.
In the past few weeks it's become very fashionable to "bash" Honda's rear linkage. Why so few complaints before then? Haven't the 250R and 400EX been the standard to which all others have been judged for years now? All the sudden their suspension design is crap? Has anyone ridden a TRX450R and know for a fact that it's rear suspension remains totally unchanged?
------
**Steel Frame - Vs. Aluminum CRF Frame
Aluminum will not reduce weight or do anything but really increase cost and make the frame more difficult to repair than steel. Personally I'm thankful that they used a steel frame.
Cannondale tried an Aluminum frame and it worked pretty well for them. However, notice how heavily it was constructed. A quad frame takes much more twisting and other forces than a dirtbike and requires very heavy construction to hold up over the long term.
This means that to make a reliable aluminum frame, it typically ends up being every bit as heavy as a tubular steel frame.. What have you gained? Cost, and something you can polish - nothing more.
----
Personally, I think many people had unrealistic expectations. Honda did exactly what they needed to do. Put a great engine in the best chassis in the business, and make it an easy, painless upgrade for existing racers by making key parts interchangeable.
The fact remains that this machine will be very competitive with Yamaha's YFZ450. It's likely both will have strong and weak points when compared to each other and neither quad will be perfect for everyone.
stonehenge
Sep 16 2003, 09:09 AM
ok, we shall soon see. Stock right out of the box, I will put the entire farm on the Yami, at least in a straight line. Bone stock that is, nothing done at all, zero, stock. The entire farm!
YFZ450
Sep 16 2003, 12:47 PM
"Performance will not be as sharp as an equal sized FCR, but this carb is larger than the FCR used on the bike & will offer similar performance with slightly reduced throttle response. "
So you are agreeing it is not as high a performance as the FCR Carb. If it was I am sure Honda would put it on the CRF since it is a much cheaper carb.
"We're talking a 2.7mm longer stroke here... This is by no means going to noticibly make the engine "slower revving". In fact, it's only 1.4mm longer than a Yamaha YZ450F. "
Again if it's not noticable why would they do it? And if it was more torque and it didn't effect any other part of the power band they would do it on the CRF. They just detuned it like I said.
"Again, this is typical of practically all ATVs - they slightly mild down the cam"
All ATV's except the YFZ450 which has the same cam as the YZ. Granted you have to do a 20 minute mod to get it there. But at least it's free.
Again detuned. Not CR Level Technology.
"Yamaha may have left titanium exhaust valves in their YFZ, but how much power do you really think that adds? Would you rather have a fraction of a HP, or a more reliable valve train? "
Do you really think Titanium is less reliable than steel? I would have to say they cheaped out and put the less expensive ones in it. And yes I think it will limited the amount of RPM that is achievable with this engine.
Again if it made no difference the CRF would use steel instead.
In fact I do not even know how Honda can claim this is a CRF engine. What is the same? Cylinder? No Head? No Piston? No Valves? No Cam? No I'll bet with the exception of the Valve cover and maybe the clutch cover there isn't the exact same part on any of it.
Look at the Yamaha all these parts are the same as the YZ450F.
"Linkage does not increase travel, it controls how progressive the suspension action is."
No it doesn't but less travel is less travel. When you are only dealing with 9 inches of travel and extra inch is absolutely a lot of travel.
I'll give you the aluminum frame comment. Steel is probably better anyway.
Bottom line is if you want the latest technology with all the highest technology for the best ATV for Racing the Yamaha is that machine.
If you want just another trail sport ATV than I am sure the Honda will be a fine machine. I stand by my statement. Honda is not giving the ATV rider their fair share. Yamaha is.
fastCR80
Sep 16 2003, 03:26 PM
Honda is the best

:twisted: and you yamaho, susiki and kawasucki guys won't admit it. >:<
Kevin
Sep 16 2003, 03:34 PM
yzf, the thing you need to keep in miond also is that both yamaha and honda will not sponser a quad racer, they spend millions on supercross and mx, thats why you find the more advanced titatnium valves, better carb, etc.
the crf is 230lbs, it doesnt need torque, it needs hp for speed, a quad on the other hand at 350lbs needs more torque simply to get the added weight moving faster.
all in all, were lucky to have these quads avaiable from honda and yamaha period. lets see how long they can make em with the safety police looking at them again like they did in 86.
Mike330R
Sep 16 2003, 03:38 PM
| QUOTE |
yzf, the thing you need to keep in miond also is that both yamaha and honda will not sponser a quad racer, they spend millions on supercross and mx, thats why you find the more advanced titatnium valves, better carb, etc.
. |
Honda just signed Farr and yami signed Gust
tron
Sep 16 2003, 05:54 PM
Comp and Olds should be a fun place this season! Guess I should loose weight to be competitive though...or teach my daughters how to speed shift...
Changing to something more productive, which shops would do the best wrenching on either quad? Anyone know who got the pre-production models?
YFZ450
Sep 16 2003, 07:32 PM
Don't get me wrong. This will be a great sport quad but it just isn't in the same league as the YFZ450 for racing like Honda is claiming.
I love that Honda came out with this model but it no where near what l the die hard Honda guys were saying it was going to be. I expected to get the same technology that the CR guys have. I mean if Yamaha can do it why not Honda?
Anyway just my .02 worth. Im out.
Kevin
Sep 16 2003, 10:06 PM
| QUOTE |
| QUOTE | yzf, the thing you need to keep in miond also is that both yamaha and honda will not sponser a quad racer, they spend millions on supercross and mx, thats why you find the more advanced titatnium valves, better carb, etc.
. |
Honda just signed Farr and yami signed Gust  |
wow, thats cool, still aint as good as motorcycles, but its a start.
Poiks
Sep 17 2003, 07:05 AM
| QUOTE |
| Don't get me wrong. This will be a great sport quad but it just isn't in the same league as the YFZ450 for racing like Honda is claiming. |
Who races stock machines anyway? Real racing, I mean...not racing to the hill for a cold one.
Toy Collector
Sep 17 2003, 12:07 PM
Personally, I think everyone needs to stop talking shit. No one is going to win this argument. There will always be someone out there dumping tons of cash into EITHER 450 and chances are, it won't be any of us. You guys are comparing Pepsi to Coke, Chevy's to Ford's, Toyota's to Nissan's and not getting anywhere.
I GUARANTEE we'll see both bikes beating each other all the time up all the hills out there. There are numerous factors involved, not just the design of the bikes. Example: When I used to street race, there was another 90- 93 Integra that would always try to get bragging rights on me. We both had "almost" the same setup and I'd always womp on this kid by 3 cars... at least. A 3 car difference on "stock" motors is quite a difference and usually a reflection on the driver, not the car.
So, if you guys have this "stock Honda VS. stock Yamaha" race in reality, get 10 guys together and switch em around... then talk shit.
I said it before and I'll say it again... I have seen a Kawasaki Tecate beat the living crap out of ANY Banshee, 250R, whatever that went up against it. It's not in the badging...never has been.
I'll never buy either of these bikes, seeing as I can kill myself just as easy on my 85 250R. They might beat me, but I'll ALWAYS have that old school look none of the new bikes can touch and turn more heads than they can.
Then again, this is why we live in America right... so we can have choices and debate the pro's and con's of each?
-Nick
Kevin
Sep 17 2003, 12:20 PM
thats true there guy
stonehenge
Sep 17 2003, 01:46 PM
Toy coll, does that 83' have a factory headlight? If so I'd love to see it and take some photos and crawl around it for awhile.
The Pastor
Sep 17 2003, 01:57 PM
It's funny... all this talk about performance and all that...
But still, it's a four-stroke and will always be a four-stroke and as such, will always be inferior.
Kevin
Sep 17 2003, 04:45 PM
thats it brian, you better have the triz runnig good, cause im gonna smoke ya in the dunes
Banshee_RMX_Rider
Sep 18 2003, 02:26 AM
| QUOTE |
Honda is the best :twisted: and you yamaho, susiki and kawasucki guys won't admit it. >:< |
this coming from a guy with a screen name..FAST CR80....when mommy and daddy let you come out and ride find a real bike then join us "bigger" kids
big had
Sep 18 2003, 04:07 AM
boy, am I dumb. I own a Honda, a suzuki, a polaris, a kawasaki, and a kasea. They all have good selling points, I guess. I think it is fantastic that Honda is warming back up to a race minded quad, FINALLY....personally, I think the only bike that sucks is your, when it is broken down :.(. ... and your waiting for a pull back to camp :.(. ...yep, thats the brand that sucks to me......
stonehenge
Sep 18 2003, 07:38 AM
big had, thats funny and true! I love all the choices folks have these days. And I bet the aftermarket companies do to!
Toy Collector
Sep 18 2003, 07:23 PM
[quote]Toy coll, does that 83' have a factory headlight? If so I'd love to see it and take some photos and crawl around it for awhile.[/quote]
I was unaware 70's came with headlights. (My 110 has one.) I'll have to research this one. I remember when I was 4, my dad pulled it out of the van (brand new) and it didn't come with it. The most my brother and I have done is take the stickers off of the rear plastics, other than that we have respected the bike really well over the past 20 years. Once it's cleaned up I'll be bringing it out to Glamis and you guys can take a look at it all you want.
-Nick
stonehenge
Sep 19 2003, 08:15 AM
Yea in 1983 on the blue ones only they offered a crazy super rare option from the factory,(not dealer installed) headlight, talilight and entire loom. It was only on a few hundred world wide and if you ever see one, holy moly! I've seen one and actually touched it, offered the dude 1000.00 for his ride and he claimed it wasn't for sale, bummer, I just wanted the whole 83' blue 70 with headlight. Old schoolers refer to it as the NOS model and I've found stuff from honda that uses that term? Not to sure on the history. I'm a 70' nut, and 83 is my favorite. I run the old 80's atc 90 headlight which is what honda used on there 83' 70, but the mounts and wire loom and taillight are crazy hard to find. Someday. :|
Sm0k3d
Sep 19 2003, 08:47 PM
Hey i wouldn't diss the Cr80!
i have a 1980 Cr 80 bored .020 with weisco piston, with a 250lb rider it can keep up with a 125 with a good rider on it. Also does wheelies in every gear down the street once it gets in the powerband (VERY WICKED!)
Sandstorm
Sep 28 2003, 09:07 PM
My bro owns a YFZ. He's the guy jumping off the top of Choke Cherry Hill. There is no way the Honda will make more power. The YFZ rips no ands ifs or butts. Only the diehard Honda guys see the red machine outdoing the YFZ. Sorry Honda your best effort isn't gonna be good enough, just like your new 1000cc sportbike isn't gonna dethrone the GSXR 1000. I don't own either quad or want to so I could careless. I have rode the YFZ plenty to know it is the shiat!!!! Honda got slapped across the face when Yamaha released the YFZ.
CHEFF
Sep 29 2003, 06:22 AM
I think they're faster than we all need to go. I like them both. So I guess i'll go buy them both. Peace
Poiks
Sep 29 2003, 06:48 AM
I agree chef. Reading the Honda versus Yamaha crap is like watching two bratty kids argue. :roll:
Turbo Diesel
Sep 29 2003, 07:25 AM
| QUOTE |
| I think they're faster than we all need to go. I like them both. So I guess i'll go buy them both. Peace |
| QUOTE |
| I agree chef. Reading the Honda versus Yamaha crap is like watching two bratty kids argue. |
No Sh**! Yamahas are the fastest things on wheels....Wait, Honda makes the fastest bikes in the world.....My bike can wheelie up the side of the Empire State building..........My dad can beat up your dad....
Whatever
Rubberneck
Sep 29 2003, 07:58 AM
Damn Dune Hound! :shock: Your bike can wheelie up the Empire State Building? Thats nothing. I did a stoppie down the St. Louis Arch. :wink:
Toy Collector
Sep 29 2003, 08:00 AM
| QUOTE |
| I don't own either quad or want to so I could careless. I have rode the YFZ plenty to know it is the shiat!!!! Honda got slapped across the face when Yamaha released the YFZ. |
:dozey: Kinda quick to jump to conclusions when you've never ridden the other 450...or have you? :?: :?: :?:
Besides, they have 4 wheels anyway. Who would want to buy a bike with 4 wheels besides a female? :shock:
:roll2: :roll2:
Toy Collector
Sep 29 2003, 08:07 AM
| QUOTE |
| Sorry Honda your best effort isn't gonna be good enough, just like your new 1000cc sportbike isn't gonna dethrone the GSXR 1000. |
Congrats to both however, cause they can and do kill people just as easily with these bikes... sorry, people kill themselves on these bikes.
www.sicriders.com ... I don't expect these guys to be walking for that much longer. :bomb:
Sandstorm
Sep 29 2003, 02:54 PM
Have you rode a YFZ?? Not a stock one, but one w/ a pipe and cam mod??? Did you air it out? Did you slam it into corners?? I see your signature. Brand loyalty for you, but not for me. :roll:
tron
Sep 29 2003, 04:32 PM
Hmm, how many bent up YZFs have you seen? So much for aluminum a-arms, wonder what will be next, or we could race from Geco to China and back, oh, but wait, the Yamaha will have to stop for gas since it has a smaller gas tank.
No doubt about it, the Yamaha is a fine bike, the front end even folds for easy storage... :mrgreen:
South Bay
Sep 29 2003, 04:55 PM
| QUOTE |
| QUOTE | | Sorry Honda your best effort isn't gonna be good enough, just like your new 1000cc sportbike isn't gonna dethrone the GSXR 1000. |
Congrats to both however, cause they can and do kill people just as easily with these bikes... sorry, people kill themselves on these bikes.
www.sicriders.com ... I don't expect these guys to be walking for that much longer. :bomb: |
Bikes don't kill riders. As the great Hunter S. Thompson once wrote:
"The final measure of any rider's skill is the inverse ratio of his preferred Traveling Speed to the number of bad scars on his body. It is that simple: If you ride fast and crash, you are a bad rider. If you go slow and crash, you are a bad rider. And if you are a bad rider, you should not ride motorcycles "
Bad riders kill themselves all the time while riding and idiots in cages (that's motorcycle slang for auots for those who don't know) who don't look out for others kill the rest . . .
P.S. Honda and Yamaha BOTH make great bikes . . .
Toy Collector
Sep 29 2003, 08:15 PM
Honestly, I was being sarcastic on every front in my last few posts. However, most of it came from what I see on the road lately. I don't know about you guys, but I'm not too impressed by some "really smart guy" doing a "Superman, 12 o'clock or hanging off the side" of his GSXR 1000 or Honda Sport bike when I'm behind him doing 70 mph on the freeway. There seems to be an explosion of this nonsense and people are getting hurt. However...
I fully agree with South Bay, bikes don't kill riders. It's the dumbass that doesn't know what he's doing.
As far as brand loyalty, I'll throw these in to dilute all the red...
89 Toyota 4Runner
54 Volkswagen Bug
used to have...
87 Toyota 4Runner
63 Volkswagen Bug
77 Volkswagen Scirocco
Also...
My brother used to have an 83 YZ80. I SWEAR TO GOD that little bastard was one of the fastest things I had ever seen back in the day. I honestly believe it would come close to keeping up with a stock 250r, but they're different machines. I know for a fact both companies build great bikes. If they didn't they wouldn't be the two best companies out there.
I'm done.
-Nick
Headinjury
Sep 29 2003, 09:26 PM
| QUOTE |
| Have you rode a YFZ?? Not a stock one, but one w/ a pipe and cam mod??? Did you air it out? Did you slam it into corners?? I see your signature. Brand loyalty for you, but not for me. :roll: |
Cannondale????? Sorry to hear that. My condolences
CHEFF
Sep 30 2003, 03:44 AM
Some say potato, I say pototo. Peace
tron
Sep 30 2003, 05:50 AM
On the wild biker stunts, I kinda like watching them. I know I couldn't do that (uh, nor would I want to), but I will go 155+ mph down the 15 between offramps with no traffic in my C5 Vette. :mrgreen: (The no traffic thing is becoming harder, now that I'm here will people please stop moving!)
I street raced allot in my yute, no one ever got hurt, we never crashed into anything, and about the only thing that was damaged was the u-joints, clutches, engines - etc. I don't know how you can crash when going in a straight line, so these kids must be REALLY stupid. And yes, some of the people had 9 second cars, of course, we always picked deserted streets, err, well, most of the time we did...
Sandstorm
Sep 30 2003, 03:12 PM
Thanks for the compliment. You obviously don't know what's going on w/ C-dale and I never once mentioned my quad. This is about the YFZ and CRF. :roll:
Poiks
Sep 30 2003, 03:18 PM
Catfight!
hillsbro
Oct 1 2003, 12:01 PM
You go Bri.
CHEFF
Oct 9 2003, 06:45 PM
Love watching the facts come out at Olds. Your answer will be there. Peace
dunernr
Oct 10 2003, 08:37 AM
Run what ya brung...
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