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Old 11-09-2013, 05:49 AM   #1
brucifer OP
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1999 YZ250 Tight Woods Bike...

Possible? I've done a little research on this and it seems these bikes make a pretty good off road/woods bike. Anyone have experience with this era YZ250 in a tight single track role?
Would I be better off building my '84 CR500 for this? Already have the CR and would have to purchase the YZ but the asking price is pretty low.

As always, thanks for any input.
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Old 11-09-2013, 03:37 PM   #2
Racer111v
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I'm about to do some refresh on my 2001 yz250n 2t. I raced it in hare scrambles events in 2002-2003. That included a NETRA b-senior championship in 2003. The bike is bullet proof and very capable in tight woods and fire roads alike. I installed a 2000 wr400 transmission, and flywheel weight. The low first gear and tall fifth helps a lot, but the stock transmission will work if the trails are not to tight and hilly. The suspension is the place to spend your money first. The mx valving is to harsh and the bike chatters and skips across everything with out any traction. With the valving correct it is a complete pleasure in the trails. A cr500 is not a fun bike in the woods without a LOT of work. I have raced/ ridden with a lot of them. There is no need for that much power in the trails. Once you get tired a 250 will get you in trouble, let alone a 500.
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Old 11-09-2013, 09:20 PM   #3
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It could make a good woods bike. The first thing would be to ask why is the price so low. Make a list of the parts you need to fix it, check the price, and that the parts are still available. I was really interested in building a YZ250 woods bike. But I couldn't escape my addiction for vintage bikes. I might still go with a YZ250 in the future, but I think I'd spend a few dollars to get one in real good condition first.
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Old 11-10-2013, 06:04 AM   #4
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Quote:
Originally Posted by Racer111v View Post
I'm about to do some refresh on my 2001 yz250n 2t. I raced it in hare scrambles events in 2002-2003. That included a NETRA b-senior championship in 2003. The bike is bullet proof and very capable in tight woods and fire roads alike. I installed a 2000 wr400 transmission, and flywheel weight. The low first gear and tall fifth helps a lot, but the stock transmission will work if the trails are not to tight and hilly. The suspension is the place to spend your money first. The mx valving is to harsh and the bike chatters and skips across everything with out any traction. With the valving correct it is a complete pleasure in the trails. A cr500 is not a fun bike in the woods without a LOT of work. I have raced/ ridden with a lot of them. There is no need for that much power in the trails. Once you get tired a 250 will get you in trouble, let alone a 500.
Oooooo, a WR400 transmission swaps in? I like that! Wonder if it's compatible with the '99 model?

Quote:
Originally Posted by mudmantra View Post
It could make a good woods bike. The first thing would be to ask why is the price so low. Make a list of the parts you need to fix it, check the price, and that the parts are still available. I was really interested in building a YZ250 woods bike. But I couldn't escape my addiction for vintage bikes. I might still go with a YZ250 in the future, but I think I'd spend a few dollars to get one in real good condition first.
The ad says it runs good-- but it does look ridden. I don't mind putting money into it to bring it up to snuff. My CR needs a bunch of work too so the fix-up cost is kind of a wash. However I do already own it so that does factor in.

I've been following your big-bore YZ threads with great interest.
The killjoys for me doing the same to my CR500 is the ridiculously tall first gear and the crackhead designed kick starter.
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Old 11-10-2013, 09:15 AM   #5
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http://www.dirtrider.net/forums3/sho...threadid=68171

I rode with the stock tranny and it gets the job done. Without question the suspension is the first thing to invest in.The flywheel weight and FMF grarly pipe took some of the snap out of the power, and smoothed out the low end.
If you like the bike, then invest in the tranny next off season.
I'm doing a lighting coil, and get it street legal for next summer. I may do the autoclutch to take some of the work out of the deep woods.
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Old 11-10-2013, 09:03 PM   #6
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The WR400/426 trans works with 99 to current YZ250 2 strokes. Some very minor clearancing of the case is needed if you were to use the whole trans, 1st-5th. Tons of info on the swap in the 2 stroke Yamaha forums on Thumper Talk. I did the 5th gear swap in my 02 YZ250. Keep an eye on the center power valve, they can break the stop tabs off and the center valve can contact the piston. This is on 99 to current YZ250s. Otherwise they make great woods bikes. Ive raced a 97 WR250 2t, 01 YZ250 and 02 YZ250 in enduros.
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Old 11-12-2013, 05:19 AM   #7
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Really appreciate the information, guys.

Okay, having not ridden a "late model" 2-stroke since I rode a friends '96 RM250 when it was new can anyone compare the power characteristics of the '99 YZ250 to an '01 YZ426F?
I bought one of those new and it was a kick in the a$$ in everything but tight, brushy single track. First was too tall and the flywheel too light. It was a real workout in the tight stuff.

Besides my POS CR500 that I start and run through the gears up the street every so often, I haven't owned a 2-stroke since the late '70s--a '77 CR125M Elsinore.
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Old 11-12-2013, 02:17 PM   #8
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Wink

I had a 02 YZ426 along with my 02 YZ250. The 250 was/is a better woods bike. The 426 lacked bottom end but pulled harder through the midrange. I tried to race the 426 in enduros but just never really got along with it. It would flame out in the tight and take what seemed like forever to restart. My 04 KX250/500 hybrid is much easier to ride in the tight. I guess you can see that I have no love for the 426.
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Old 11-12-2013, 05:23 PM   #9
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Quote:
Originally Posted by The Flyin Hawaiian View Post
I had a 02 YZ426 along with my 02 YZ250. The 250 was/is a better woods bike. The 426 lacked bottom end but pulled harder through the midrange. I tried to race the 426 in enduros but just never really got along with it. It would flame out in the tight and take what seemed like forever to restart. My 04 KX250/500 hybrid is much easier to ride in the tight. I guess you can see that I have no love for the 426.
Thanks man, exactly what I needed--to hear from someone who has owned them both, and at the same time yet.


An '03 has come up for sale here. I spoke with the owner briefly and I may look at it this weekend if it's still available.
Does $1300 sound like a decent deal? It looks pretty clean in the pics.
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Old 11-12-2013, 05:26 PM   #10
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Here's a pic.
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Old 11-12-2013, 06:21 PM   #11
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I also have an ad on CL wanting a 200cc 2-stroke off road bike. I'm thinking that one of those would be pretty much exactly what I'm looking for, for the type of riding I'll be doing.
Always thought the old Yamaha ITs were bitchin' looking bikes with the blue/yellow color schemes.
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Old 11-13-2013, 08:01 AM   #12
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That depends on the 200. My '01 MXC200 was a hard hitting, crazy fast Tasmanian Devil of a bike. It behaved nothing at all like an enduro. It took a Gnarly pipe, external flywheel weight and dialing back the power valve to turn it into an enduro. But now that it is dialed in I like the combination of close ratio transmission and low to midrange pull.
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Old 11-15-2013, 08:33 PM   #13
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The 250 YZ can be made into a really sweet enduro/trailbike.

But not to sound like a broken record a KTM 250 or 300 is already there for the most part and has some longer lasting parts. An 02/03/04/05 and on up KTM 200/250/300 has been the bike of choice for many for a reason,they work and they last well.

A friend started setting up his bought new YZ250 and Im sure he has thousands over purchase price in it and it needs more.
wide trans/18" rear wheel/bigger tank/better seat/flywheel weight/rekluse clutch to tame the snorting power,it adds up and up.
A KTM comes with much of that stuff stock but then we all know that.

He seems to put a piston in the Yam about twice as often as a KTM so that isnt that good.

But the YZ is light and turns great,like an MX bike should.
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Old 11-15-2013, 08:35 PM   #14
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That depends on the 200. My '01 MXC200 was a hard hitting, crazy fast Tasmanian Devil of a bike. It behaved nothing at all like an enduro. It took a Gnarly pipe, external flywheel weight and dialing back the power valve to turn it into an enduro. But now that it is dialed in I like the combination of close ratio transmission and low to midrange pull.
Hmm,I also had an 01 MXC200 by chance. I did put a flywheel on it but it didnt seem much snortier then the other 200 KTM's Ive had.
I liked the closer gears in the woods also.
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Old 11-15-2013, 08:37 PM   #15
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Originally Posted by brucifer View Post
I also have an ad on CL wanting a 200cc 2-stroke off road bike. I'm thinking that one of those would be pretty much exactly what I'm looking for, for the type of riding I'll be doing.
Always thought the old Yamaha ITs were bitchin' looking bikes with the blue/yellow color schemes.
Ive got a 2009 XCW 200 Im selling,fresh piston,bike is in great shape and ready to roll as is.
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