Okiewan

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Dec 31, 1969
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Use the search function. There is a lot of info.
 

jsmith811

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Jun 21, 2000
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Differences

The WR has larger Gas Tank, Better gear Ratio (for woods anyway), and heavier flywheel weight which makes it Less prone to stalling, those are the Major differences. The YZF has the smaller Tank which improves rider position, Gearing is for the Motocross track and it is a few pounds lighter. I have owned both and like the YZF better primarily due to its Super Stiff suspension (stiff compared to WR) I like the gearing better on the WR though. Can't go wrong with either one.

If you get the WR there are a ton of FREE mods you can do.
If you get the YZF you don't need to change a lot to ride woods or MX, I added a bigger rear sprocket & have ordered a flywheel weight, that's it.
 

jsmith811

Member
Jun 21, 2000
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Range

Mileage depends on alot of factors, but generally you will see about 30 miles per gallon from the WR/YZF 250's if you ride Fairly easy, slighty less if you are extremely hard riding. And the YZF250 Tank which you can get at www.clarkemfg.com now, cost alot less than a factory yz tank. and it will get you around 60 miles in range, more than enough for me. and you can also get a 3.gal tank from clarke that is just as slim as the YZF tank and go around 90 miles. The factory WR tank & Seat is the Biggest problem on the bike in my opinion its very wide and bulky, all the fuel is carried too high. If I were only going to change one thing on the WR it would be the seat & Tank., You might look for a YZF exhaust after that, the other mods are free and then its ready. Maybe some good tires later too.
 

jsmith811

Member
Jun 21, 2000
241
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I'm not familiar with Rev it up, slow it down, rule, but if you mean is it hard to keep it "on the pipe" or "in the powerband" it is alot easier and more forgiving than a 125 -2 stroke, but its not as much as a 250 two stroke. if your only 15 you should have plenty of room to grow with it for sure. Good luck. I would estimate you will be very happy with yzf250.
 

Boozer

Member
Oct 5, 2001
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good choice. i just wanted to make it clear here that the WR is no play bike. many peolpe believe that the WR is a 'trail bike', whereas the YZF is a 'race bike'. The WR is a YZF modified for enduro competition. all the changes made by Yamaha are there to make the bike more competent (faster) in its main area. Enduro competition. they wouldn't go to the trouble to make it slower.
My WR is heavily modified. it is a YZF, with the exception of a few things. The main things are : 18" rim (enduro remember, see post on 18" vs 19" rim), extra core in radiator (good again for enduro), and the terrific WR gear box. If i had a YZF, this is the thing i would miss most.
Lucky for me, Australian WR's come with a YZ seat/tank. i believe this should be used on all WR models, as it is so much better. you wouldn't go back to the big one after the YZ tank, that's for sure. If the WRs here didn't have the YZ tank, i wouldn't have bought one. Replacement YZ seat/tank is AUS$800!!!
So if you have the WR with the YZ tank/seat, all you need to do is the free mods. They take time, but you will learn more about your machine. go to the trouble of changing to YZ timing, and do the air cut valve mod. This will turn you WR into a snapping wheel spinner! but i admit WR timing is better for tough hill climbs.
So thats what i wanted to say. Tell us when you receive your bike, as there are a few things you should do first up before you ride it.
 

jsmith811

Member
Jun 21, 2000
241
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Weight

I agree with above about the WR gearbox, its great, it does alot for the bike, I ride the bikes back to back alot. BUT, I have now added a 12oz flywheel weight to my YZF, so Now I Have what I consider the ultimate trail/play bike, it lugs like a WR, does not have the gap between 3 & 4, and has the Best suspension of any bike I have ever ridden. The flywheel weight on the YZF made a TREMENDOUS difference I was amazed. It feels like a different motor.

As for average rider weight, alot of guys here can tell you, I'm not sure, I weigh around 185 and the suspension seems good to me, I don't think I'm too heavy, I would guess they are setup up for 150-170 lb. riders.
 

jsmith811

Member
Jun 21, 2000
241
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Switch

I let a friend do the switch for me, I didn't have a flywheel puller, It takes about 30 minutes, but I'm not sure I would tear it down at the track, since you have to drain the oil. I don't think you would want to take it off for the TRACK or Trail anyway. Its a very good upgrade, I'm suprised its not discussed here more for the YZF's. If I had to choose between the pipe and flywheel I would take the flywheel, although the pipe gave a huge gain, the flywheel gave a more functional gain. Less stalling, made the power more usable then it already was.
 

James

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Dec 26, 2001
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does anybody actually know the gear ratios in both bikes? I assume the primary drive is the same? Would be nice to see the actual difference in gearing.
 

zcookie49

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Dec 21, 2000
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jsmith811
hey, where did you get your 12oz flywheel weight for the YZ250F and how much did it cost?
I think I read they are about $190 or more, seems fuzzy though. I am thinking about that now for the ease of less stalling, your statements seem pretty solid. thanks for any input!!!!!!!
 

jsmith811

Member
Jun 21, 2000
241
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flywheel

its a steahly weight, but I got it from MXSOUTH, they forgot to ship it on time, but then they made up for it by shipping it Overnight with Saturday delivery, so they must be prettty good, things like that are Very good for business in my opinion.
www.mxsouth.com
 
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