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Discussion Starter #1
hey...im thinkin about getting a yfz 450 pretty soon and was juss wondering on how it comapares against the z400, raptor, ex and more.....for example speed, handling, reliability, etc...thanks
 

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Well to be honest, there really isnt much of a comparison...the Z400 is a great bike, handles great, good power, and tons of after market parts. However, you do need to dump some $$ into suspension and engine to get it up to par with the YFZ. Same thing goes for the raptor. The raptor is heavier, tippy, and has good power but its not YFZ power. As far as reliabilty, well the rappy had the tranny problems, starter problems. The Z had frames and axles. The YFZ so far has had 2 cases of bent lower arms.
 

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Discussion Starter #3
oh yeah....a guy at a local dealership said the yfz was crap cause it is not reliable and needs a lot of maintenance....the guy is miserable...but if u got any input on this thatd be cool
 

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Discussion Starter #4
one more thing i kno this sounds stupid but in a race on a track of those bikes what would most likely win with the same skilled riders on each....and same thing in a drag...also who would most likely lead the pack on a trail
 

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The YFZ will smoke all those quads mentioned w/ the same skilled riders on each. The Raptor FEELS like it has a lot more power. That is just because it wants to wheely. I have never rode a Z so I dunno. The Raptor is no where NEAR as good handling as a YFZ. YFZ SMOKES a Raptor off the line. Top Speed I am not sure. The YFZ is though by far better than all the quads mentioned for any type of riding no doubt.
 

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Originally posted by chrisc@Aug 5 2003, 01:50 AM
oh yeah....a guy at a local dealership said the yfz was crap cause it is not reliable and needs a lot of maintenance....the guy is miserable...but if u got any input on this thatd be cool
Are you sure he's not a Cannondale dealer :O
 

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I own a KFX, Raptor and a YFZ. My buddy and I are pretty close in skill level. His Z400 has a Yosh tri oval titanium pipe and it is jetted with a K&N and his bike is a tiny bit slower than my YFZ with just the baffle removed in a drag. On the track the YFZ has superior suspension and the handling is a little better too. I really like the KFX, but for MX the YFZ is definitely a better deal because you're going to be into your Z at least as much as a YFZ to make it comparable. As for comparison to the Raptor, the YFZ is better in all categories. The Raptor with mods will probably respond better, but I wouldn't waste my money on the Raptor unless you are planning on modding it all up for just dunes riding.
 

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Just curious about some things, now i know that the Z-400 is not as fast as the 450 but it also has a smaller engine and it cost quite a bit less. If you added a 440 kit or 450 kit how would it compare then? You would actually still have less money in the Z then in the 450 even with the kit.
I would think you could easily build a Z-400 that would kick the crap out of a yfz450 for the same money that it would take to buy a stock yfz? No? Yes? whadda ya think?
 

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i heard a report that a yfz has beat a 440 Z in a drag. but they yfz had cam mod, pipe no airbox lid. so who knows.. Runnin a stock 450 vs a Z with a pipe is pretty close but the yfz still has the advantage.
 

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Kory Ellis said on ATV Scene that the stock YFZ-450 with a slip on, air box lid off and rejet was more powerful then his fully built race ready Z-440 that he was sponsered to ride. Even if you did put a 440 kit on a Z it still would be a little higher off the ground, not as wide and no where near as well suspended. You would also still be wondering about the durability of the Z's frame and axle. I know they said they strengthened both but my buddy Brian got one of the strengthened axles and it bent as easy as the first one and he's not mister big air.
 

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this is my first post on this site and i dont have a yfz but i do like them they are sweet quads and im not bashing them in any way but i have seen this is person so it's true a z with the Yoshi 450 kit smoked a yfz tha was uncorked with airbox lid removed and jetted properly but the engine kit alone was $2000 and that put's you right a yfz's price but that is what it takes to beat a yfz
 

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I have a Z400 and love it. Unfortunaly I haven't got to ride a YFZ no one around here has one. They are a little pricy and I have heard that some guys are still changing the suspension and A Arms etc. You could have a LOT of money tied up in it real quick. Without reverse I probably wouldn't buy it and I don't race all the time. They have piggybacks from the factory and that is nice but what weight are they valved for? Just my 2 cents. It is a great bike and I was surprised that Yamaha put that much time into it. I hope they don't have the tranny problems like the Raptor had.
 

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Here's the deal. Stock for stock the YFZ will smoke a Z. The YFZ has better suspension and a bigger motor. I can't wait to get my YFZ back to the track to see how much better it is than my $18,000 Z. I hated the stock YFZ, but I was also spoiled with a fully built Z. Kory Ellis told me to switch for a reason. He better be right or there is going to be one less Pro next year racing. But I trust his opinion. Why would he finish off the year on a YFZ when he has two Z's? As soon as he got on the YFZ he set the fastest Production lap time at Mt. Morris and won Production at Lorettas. I can't say too much bad about the Z because it has help me win the World 4-Stroke Championship, I am leading the ITP Quadcross Series, and I need to sell it.
 

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Hey chrisc. I have both a Raptor(03) and a YFZ...and I have ridden un-corked z 400's...The YFZ does everything better. Somethings alot better. Some a little better.

It really depends on what type of riding you look to do. If your all trail riding, the YFZ wins but it's not as large a margin as it will be on the track.

On trails I think the Z 400 handles ok, has ok, but not impressive power. The Raptor has great torque...which is exaggerated because it like to wheelie.

The Raptor is hard to wrestle on a track. It's tippy and jumps real squirrley. It's like taking Playdough to a knife fight. It's not meant to do that type of riding without some mods. (I have over $5000 in MX oriented mods on my Raptor.)

A YFZ should be anyones choice because it is truly the superior product. Is it worth a few more bucks over a Z 400 ...that's up to you and how serious you are about riding.

If your like most of us on this site, you'd pay twice as much and give up half your sack before you'd be caught dead on a Z400! :rock
 

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Discussion Starter #17
thanks alot for the info guys...my minds pretty set on a yfz...just gutta go out and get one so i can start ridin on it.....keep all the responces comin...chris
 

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The Z400 is a great bike, I love mine, but like mentioned earlier the 450 kit is $2k, not to mention suspension (which stock z suspension sucks). I like my YFZ a lot better, I am a lot faster on the track with it than I ever was on the Z (KFX to be technical).
 
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