yz426 vs yz 250......


39 replies to this topic
  • Burtis_21

Posted August 26, 2007 - 01:19 PM

#1

I am currebtly looking for a new bike and i have decided between to bikes...... the yz250 and yz426...... I ride tight woods and small trails.... I have rode 2 strokes most of my life and want a fourstroke but don't know if the 426 would be a good bike considering people say that they over heat if you don't stay up to speed all the time.... is there any way to fix this..... Has any body owned a yz 250 and 426... which one would work the best for me.....

  • macs69

Posted August 26, 2007 - 03:28 PM

#2

Got the answer for you, loud and clear, in my opinion. Got my butt whipped by my 2002 426 yesterday in the tight woods. Hopped back on my old YZ250 (guy I sold it to rode with us), and I would have traded back for the two stroke in a second, plus kicked in cash. Clearly superior bike in the tight woods.

  • 624DOZZER

Posted August 26, 2007 - 03:38 PM

#3

I Own A 426 Also. All I Ride Is Trails. 426 Is A Great Bike On Alot Of Trails But When It Gets Tight The Wieght And The Lack Of Ability To Lug Is To Much To Handle. I Am Currently Looking At Going Back To A Two Stroke.

  • 642MX

Posted August 26, 2007 - 06:39 PM

#4

And The Lack Of Ability To Lug Is To Much To Handle.


Please explain... :excuseme:

  • 642MX

Posted August 26, 2007 - 06:41 PM

#5

I am currebtly looking for a new bike and i have decided between to bikes...... the yz250 and yz426...... I ride tight woods and small trails.... I have rode 2 strokes most of my life and want a fourstroke but don't know if the 426 would be a good bike considering people say that they over heat if you don't stay up to speed all the time.... is there any way to fix this..... Has any body owned a yz 250 and 426... which one would work the best for me.....


If your type in "yz426 vs yz250" in the search feature, it will come up with 6 pages of threads dealing with the differences between the smoker and stroker. :thumbsup:

  • ninthrazor

Posted November 15, 2007 - 05:47 PM

#6

Well, I am a recent convert to my 2000 YZ426 from my 1998 YZ250. The YZ250 was my first ever dirt bike and I had to learn the hard way. The guys I ride with were all super experienced and I had none! The learning curve was steep, but withthe 250, yes it was much easier to do tight trails (which is all we ride really, except the occasional sand dune run). However, this last weekend, i would not have traded my 426 away for any 2-stroke, it got me out of some hairy stuff that my 250 would have been spinnin and slippin through. Key Note HERE: i am 6'5" 200 lbs, big diff from the average smaller rider ;-)

426, the best machine for me until i improve my skills further and land myself a new bike (post 450 4-stroke era!!)

  • trevorchappell

Posted November 18, 2007 - 02:49 PM

#7

there is nothing wrong with the 4 strokes when set up right. I have an 04 yz450 and it works exellant in the tight stuff. I would recomend a rekluse clutch and a flywheel weight and then let those people telling ya that the 2 stroke is better take it for a rip i bet it will change their minds

  • zaxcar1

Posted November 18, 2007 - 09:05 PM

#8

this is mt 1 year riding a dirt bike(i ride sport bikes) and started with a yz250 and then went to a 426. ill tell you i like the 426, love the power and i had no problem in the tight stuff.

  • stillsun

Posted November 18, 2007 - 09:41 PM

#9

The Lack Of Ability To Lug Is To Much To Handle.


You gotta be f'n kidding right? Can't lug a 426? Haha... This is so hysterical, the 426 is one of the easiest bikes to lug and I've owned quite a few 4 strokes.

J

  • rdefonce

Posted November 19, 2007 - 09:38 AM

#10

You gotta be f'n kidding right? Can't lug a 426? Haha... This is so hysterical, the 426 is one of the easiest bikes to lug and I've owned quite a few 4 strokes.

J


He may be talking about the tall 1st gear; doesn't allow very slow going. My 400 lugs pretty well, but it definitely stalls easier (when picking thru tight/technical trails) than my little smudgepot 200.

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  • 00YZ426FMRCD

Posted November 19, 2007 - 12:37 PM

#11

You gotta be f'n kidding right? Can't lug a 426? Haha... This is so hysterical, the 426 is one of the easiest bikes to lug and I've owned quite a few 4 strokes.

J


DITTO J,. With the right gearing, I am convinced it can be one of the best woods bikes out there. I never stall mine even in the tightest woods...It is the lug master.

PS. I have ridden my 426 in the tightest woods on a 100+ degree day. My bike has never boiled over once. No engine ice either. My header does glow at night :thumbsup:

  • ninthrazor

Posted November 19, 2007 - 08:37 PM

#12

He may be talking about the tall 1st gear; doesn't allow very slow going. My 400 lugs pretty well, but it definitely stalls easier (when picking thru tight/technical trails) than my little smudgepot 200.


My 426 is freakin awesome in the woods...yes it stalls , but it stalls a whole lot less than when i had my YZ250 plus if i wasn't a ******* and would ride my bike at its potential, I wouldn't stall it at all :-) My 426 just lugs over everything with ease, whereas with my YZ250, I would have had to be feathering the clutch like mad. The 426 is so much easier for that.

  • mikedabike

Posted November 19, 2007 - 08:53 PM

#13

I have a 250 2t and a 450 4t. The difference is the 250 is more nimble and generally easier to ride. The problem I have with the 250 is that I am 6'4" 250 with gear. In the tight steep stuff on the 250 I have to abuse the clutch pretty good and it can get tiring. On the 450 I can lug it a little more and use the torque to pull my fat self around. I think a lot of people have trouble with the 450's because of the tall 1st gear and stalling them. You have to choose the type of rider you are. The better bike depends on what the rider prefers.

  • shawnspawn

Posted November 20, 2007 - 01:02 AM

#14

Remember... the yz426 does not have a tall 1st gear like the 03-05 yz450s, it has a 5-speed with a very nice 1st gear. Even better with a 49 or 50 tooth rear sprocket.

  • grayracer513

Posted November 20, 2007 - 07:32 AM

#15

Remember... the yz426 does not have a tall 1st gear like the 03-05 yz450s, it has a 5-speed with a very nice 1st gear. Even better with a 49 or 50 tooth rear sprocket.

That is misinformation.

The YZ426 has a low gear ratio of 1.846, and come geared at 14/49, which, including the primary reduction gives a full overall 1st gear ratio of 18.2:1 form the crank to the rear wheel.

The 4 speed '03-'04 YZ450 has a low gear of 1.929, and is geared at 14/48, yielding an overall of 18.62:1, slightly lower than the 426.

The '05 model had a higher primary drive ratio, but compensated for that with lower final gearing so that the ratio overall was virtually the same.

  • Ga426owner

Posted November 20, 2007 - 07:44 AM

#16

hands down....for the woods a YZ250 w/ Flywheel weight would be my choice.....the 426 is a big ole pig in the woods and w/o auto decompression it plain sux especially when you stop or fall on any steep hill IMO:excuseme:

  • 00YZ426FMRCD

Posted November 20, 2007 - 08:29 AM

#17

hands down....for the woods a YZ250 w/ Flywheel weight would be my choice.....the 426 is a big ole pig in the woods and w/o auto decompression it plain sux especially when you stop or fall on any steep hill IMO:excuseme:


To each their own...You got to go with what works for you. I don't fall, stall or have any problems starting mine. Even when I had the manual decomp on dead-kick starts at Harescramble races. I've ran many tight woods races on my 426 and never stalled. (No flywheel weight and no rekluse) The power and delivery of a YZ250 just doesn't cut it for me. Give me one with a 300 kit and a flywheel weight and I might reconsider.

-RCD

  • shawnspawn

Posted November 20, 2007 - 12:24 PM

#18

That is misinformation.

The YZ426 has a low gear ratio of 1.846, and come geared at 14/49, which, including the primary reduction gives a full overall 1st gear ratio of 18.2:1 form the crank to the rear wheel.

The 4 speed '03-'04 YZ450 has a low gear of 1.929, and is geared at 14/48, yielding an overall of 18.62:1, slightly lower than the 426.

The '05 model had a higher primary drive ratio, but compensated for that with lower final gearing so that the ratio overall was virtually the same.



Sorry, this tall and low stuff always bites me in the ass, What I was trying to get at what the post before me was commenting on the 450s stalling all the time because of their 1st gear. I was mearly trying to point out that the 426 (which is the bike the 250 was being compared with) does not have this issue as it is a much ?lower? gear. IE my bike can run in gear at a much lower speed than the '03 450 can without clutching. (stock sprockets)

  • Ga426owner

Posted November 20, 2007 - 12:27 PM

#19

To each their own...You got to go with what works for you. I don't fall, stall or have any problems starting mine. Even when I had the manual decomp on dead-kick starts at Harescramble races. I've ran many tight woods races on my 426 and never stalled. (No flywheel weight and no rekluse) The power and delivery of a YZ250 just doesn't cut it for me. Give me one with a 300 kit and a flywheel weight and I might reconsider.

-RCD


I hear you - I told myself this too as I did not have a 2smoke for the woods - I had a yzf and WR450....no problem starting , never fell etc....but for the majority of newer riders - a 426 w/o decomp mod will hate the starting technique...seen it many many times.. and then they bought hondas.

now a 285 kit on the yz just may be the power ticket...or a 300Ktm...

  • grayracer513

Posted November 20, 2007 - 12:47 PM

#20

Sorry, this tall and low stuff always bites me in the ass, What I was trying to get at what the post before me was commenting on the 450s stalling all the time because of their 1st gear. I was mearly trying to point out that the 426 (which is the bike the 250 was being compared with) does not have this issue as it is a much ?lower? gear. IE my bike can run in gear at a much lower speed than the '03 450 can without clutching. (stock sprockets)

Well, it isn't gearing that does that. Lower gearing would do that, but they're nearly the same in the first place, and if you split hairs, the 450 is already lower geared.

The big problem is that the 450 has very little rotating mass. The crank is much lighter than the 426, and the flywheel is almost non-existent. The other thing that aggravates it is the ignition advance curve on the early 450's they have a lot of advance at low speeds that leads to the engine running a bit rough below 4000 under a load. If you spend much time on an '03 and an '06 both, you can see the effect the ignition map has; the '06 is far mopre willing to carry a load at 2-3000 than the '03 was.

But there's no question that the 426 is better at that kind of thing than the YZ450 is.





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