Yamaha WR250R Mega Thread

[GSBS]

Originally Posted by jon_l

Can you confirm whether I need different rear sprocket bolts than the OEMs? It seems to be mentioned frequently, but I haven't seen a conclusive reply.

Thanks!

I used the stock bolts with mine. It also has an extra set of countersunk holes. Since I reused the bolts I had I didn't check for alignment of the other holes, but they appear evenly spaced between the other holes, so I assume the'd match up with countersunk bolts/screws.

Hope that helps!

[sturgeon]

Originally Posted by jon_l

I did live-chat with a rep at Rocky Mountain, and he wasn't able to help. The PD sprockets look to have both straight and countersunk holes.

Can you confirm whether I need different rear sprocket bolts than the OEMs? It seems to be mentioned frequently, but I haven't seen a conclusive reply.

Thanks!

I use a PD 48-tooth; it bolted right up with stock bolts. It has both sets of holes.

[thumpididump]

I always like to use new bolts, especially the nice shiny strainless steel kind....

[Crawdaddy]

Originally Posted by swimmer

The term "GPR" isn't handled well when searching for steering dampner info.
The MSRP price of the Scott's and GPR are the same (hmm. nothing fishy there) but was wondering if this group of owners had come to any sort of a preference on one over the other for this particular motorcycle. And if anyone knows of a vendor offering good deals on either one that would be appreciated. Thanks

I've had both and prefer the GPR......the Scott's isn't calibrated so it's hard to find/save/store/remember what settings you like in different conditions.......the GPR has a simple/calibrated 1-8 dial.......solid product/great customer service/local company (for me)......you might be able to save ~$40 going through Rocky Mtn ATV......

[sturgeon]

Originally Posted by Crawdaddy

I've had both and prefer the GPR......the Scott's isn't calibrated so it's hard to find/save/store/remember what settings you like in different conditions.......the GPR has a simple/calibrated 1-8 dial.......solid product/great customer service/local company (for me)......you might be able to save ~$40 going through Rocky Mtn ATV......

Not to mention that you can go directly from 8 to 1 on the GPR without having to 'rewind'. I find that handy sometimes. I have both, Scott's on the F800GS and GPR on the WRR. I prefer GPR as well.

[Crawdaddy]

Originally Posted by holiday

Is this a production bike? I've searched the internet unsuccessfully for its origins. Any leads?

I bought that bike off some dude on Craigslist for ~$275 and a CORE T-Shirt

There are plenty of websites that sell 49/66/80cc "kits"........this one is 66cc of bad ass

It stays at my river house where it's equipped with 12 pack basket and cup holder for quick rides over to check the water level.......and a skull/squeezy horn get the kids out of my way.......I have no interest in pedaling when it's ~110+ in the summer....

[30Bones]

Originally Posted by thumpididump

I always like to use new bolts, especially the nice shiny strainless steel kind....

Be carefull useing stainless on parts that see lots of shear forces like a sprocket. Lots of stainless at most hardware stores is very low grade. Reusing your existing hardware with some anti-seize has always worked fine for me

[swimmer]

Thanks for the replies on the steering dampner.

[pfy50]

Originally Posted by Mr.Black999

Hi everyone. It feels like I have been looking for the answer to this for awhile but does anyone know what other bikes have the same fork and shock springs for the WR250X? I'm trying to find something from Eibach or another brand that I can find locally. Thanks a lot everyone.

Hey Mr. Black999,
What are you trying to accomplish? What area is local?(you didn't say on your profile). Are you trying find a direct weigh replacement for the OEM Kayaba springs? I would locate a local suspension shop first to see what they carry(Eibach,Penske,racetech,) for a 46mm Kayaba inverted cartridge fork. If your looking to just find an old fork to scrounge a 46mm set from I think some of the older CR's like Cr500's used them, but you still would have to change out the springs for an SM specific rate.

http://www.suspensiondirect.com/cate...Springs/1.html these guys sell direct parts for the Kayaba 46mm

Here is a list of bikes that use the same Kayaba service kit(KYB Fork Service Kit 119994800301) so might have the same fork:
2009-2012 Honda CRF450R
2005-2012 Yamaha YZ125
2004-2012 Yamaha YZ250
2004-2012 Yamaha YZ250F
2004-2012 Yamaha YZ450F
2007-2011 Yamaha WR450F
2007-2011 Yamaha WR250F
2010 Yamaha WR250R
2010 Yamaha WR250X
2006-2008 Kawasaki KX450F
2005-2007 Kawasaki KX250
2005-2006 Suzuki RMZ250
2005 Kawasaki KX125
2005 Kawasaki KX250F

[jon_l]

Thanks for all the replies on the sprocket bolts!

[UtahFox]

I'm curious to know if there's any weight saving to be had using new wheels such as these?

http://www.wheelingcyclesupply.com/shop/1/12/396.shtml

I don't see the weight listed here, and I have no idea what the weight of stock wheels are either. I'm assuming the main reason people get aftermarket wheels is for their burliness, is weight another?

[30Bones]

Most do it to their bike so they have a set of dirt and street wheels. No experience with that brand, but Excel rims are supposedly tougher and run more true.

I would not think their is much difference over OEM as far as weight and that is the last place I would be looking to save weight. More prone to damage and the dollar to savings value just isn't there.

[ecarnell]

Originally Posted by thumpididump

IMO, you're wise to revert to a 13T on the front because of the reduced risk of the chain destroying your swingarm. A 47T will yield slightly shorter gearing and your chain length will only require 110 links.

Changing one tooth up front is roughly equivalent to 3 teeth in the rear.

The stock combo 13/43 has a ratio of 3.31

12/43 = 3.58

13/47 = 3.62

13/46 = 3.53

Good reference here:

http://wr250rforum.forumotion.com/t5...-and-sprockets

Thanks for all the feedback guys.
Was thinking dirt tricks - but may just go with a rocky mountain package but may go 13/47(aluminum) and a 112 chain for a slightly longer wheel base and room for a 606 if it decide to go that route.

[Krabill]

Originally Posted by ecarnell

Thanks for all the feedback guys.
Was thinking dirt tricks - but may just go with a rocky mountain package but may go 13/47(aluminum) and a 112 chain for a slightly longer wheel base and room for a 606 if it decide to go that route.

My .02

Aluminum sprockets are good if you are racing mx and saving ounces, but will not last very long if you are actually putting miles on your bike.

I run the steel 13/47 from RockyMountain and get about 6,000 miles out of a chain/sprocket set.

[malibu_dan]

Originally Posted by ecarnell

Thanks for all the feedback guys.
Was thinking dirt tricks - but may just go with a rocky mountain package but may go 13/47(aluminum) and a 112 chain for a slightly longer wheel base and room for a 606 if it decide to go that route.

I'm currently running the Dirt Tricks on two bikes. I can't tell you how long it will last, it's not showing any wear yet. But... Krabill rides his beast harder than I do mine!