The effort you guys put into everything you do! A video is already plenty. But to include pictures, part numbers, and sharpie notes. There’s a reason I only shop from Rocky Mountain
Brad G why would you even bother putting money into a 1994... there still making brand new yz250's with more power and a better frame and suspension and your over there messing with a piece of junk
That doest make sence, replace gears both require splitting the cases. If youcan split the case and install a transmission, you can certantly remove a 4stroke head aswell.
Jens Eskildsen actually it makes more *sense than you think. There are no valves to check or reseat etc, your clearance checks are way more in depth and important on a 4 stroke. But even beyond that have you ever priced out a new head and jug on a 4 stroke vs a 2 stroke? We are talking a few hundred vs a few THOUSAND... I've busted more than a few knuckles wrenching over the years to know what's what.
You said "this" was another reason to buy a 2stroke, to which i responded. Theres no talk about heads ect in this thread or video. Its purely transmission, which is the same job on a 4 stroke.
Jens Eskildsen I can read and comprehend just fine, I find it amusing that you left out "another reason" in your little quotations. The bottom end of a 4 stroke these days is more than just gears and bolts, you have electrical components as well. But please continue.
Jens Eskildsen I also mentioned rebuilding the entire engine and not just the trans, so let's not pick and choose when debating, overall a 2 stroke engine is easier to rebuild than a 4 stroke engine, period.
Would this also fit a yz250f? I do pretty much desert riding, I love the aggressiveness of the machine in technical terrarin and in sharp turns but I feel the bike too exhausted in flat fast terrain, I was wondering if this would help to make the bike more faster and better, or should I go for a 2011 wr250f transmission swap??
The VIDEO and website description is wrong on that wide ratio kit. 3rd is NOT a taller gear on a X model. It is closer to second gear than a standard model. Only 4th and 5th are taller so the lower 3rd and taller 4th make a big gap between the two.
Thanks for the heads up. You are correct! 3rd is slightly closer to second on the X models. That makes a slightly bigger jump from 3rd to 4th, with 4th and 5th both being taller than the 4th and 5th on the YZ250. We'll get this updated in the description. Thanks! - Wes
Did you ever find the answer to this? I had read that you could when going from yz250x to yz250r. But i know that you couldn't do this on a wr to yz gear swap, like what wr used to do back in the day. I just ordered 4th and 5th. I hope that i don't need third but i will find out in a few weeks.
@@travisk5589 I didn't get around to doing the swap, but I did find on some forums that 3rd gear was needed. But that's forums, so who knows. Good luck.
Isn't the 250X 3rd gear lower (closer to second) than the YZ 250 3rd gear? The YZ250 has a 18 and 23 teeth 3rd gear(1.277:1) and the 250X has 16 and 21 teeth for 3rd gear (1.312:1). So actually the 250X wide ratio kit has a lower 3rd gear compared to the YZ250 with only a 4th and 5th gear being taller than the YZ250.
Is there anything out there similiar to this for a 250f? I have a 2019 yz250f that I have to do a rebuild on and I really would like to have gearing closer to a WR. Any suggestions?
Unfortunately, there is no wide ratio transmission for the YZ250F. On some forums there are discussions of people using the WR gear set and putting it in their YZ 4-stroke but you would need to do some deeper digging to see what all is required.
At 11:50 you show a collar which has two holes in it. Should one of those holes line up with the hole in the shaft to allow lubrication into where the gear runs on the collar?
I have searched everywhere in Canada including my own local Yamaha dealership and I can not find Yamalube molybdenum disulfide grease, can I use assembly lube or regular 10w40 motor oil, if not is there any substitution that I could use, thanks.
“The molybdenum disulfide grease I used during assembly has a very high resistance to shearing (breaking down) which helps to prevent the potential for scuffing and galling during the initial start-up and running of the transmission. Though there are other products that are suitable for the job such as automotive engine assembly lubricants - the goal is to provide sufficient lubrication to the transmission components during initial start up to prevent scuffing and galling until the components are lubricated by transmission oil.” -Dustin
@@rmatvmc I believe that you have made a big error in advising the use of molybdenum disulfide Greece in the assembly. The Yamaha manual clearly advises the use of molybdenum disulfide oil. Which is a pre assembly Lube which this subscriber has questioned you about end is correct and wanting to use this oil. You should advise everybody not to use the grease as this is not the proper lubrication for this application. This is not my opinion this comes right out of the Yamaha manual.
What bike do you have? The O-ring doesn't have to be installed until the cases are completely together and you are putting the sprocket on. This is the o ring that seals the countershaft to the collar behind your sprocket.
Hi my bike is a 09 YZ250F. I reviewed your video several times. I took a break as I was frustrated with this. Thanks for the info as I realized I was wrong. This is the first bike I'm rebuilding (the engine was taken apart when I started and I was not the one that took it apart.)
You are correct! 3rd gear is slightly lower on the "X" model. 4th is slightly taller and 5th is a lot taller than the regular YZ. Check out the bike build if you haven't already! th-cam.com/video/CcTbkdm9Af4/w-d-xo.html
A wide ratio transmission makes certain gears more broad by changing the gear ratio so the bike doesn't rev out as quickly and you can go higher speeds. Typically, 1st and 2nd gear are standard and 3-5 or 6 are geared taller.
Thanks safety police. Honestly is this really a concern of yours? Do you go around and point out safety issues? Or do like just like the feeling of telling people what to do? The power? Secondly, do you even know what a snap ring is? What will happen if it slips off the tool?
The effort you guys put into everything you do!
A video is already plenty. But to include pictures, part numbers, and sharpie notes. There’s a reason I only shop from Rocky Mountain
Hey right on guys !!! THANK YOU FOR NOT INCLUDING US OLD SCHOOL 1994 GUYS AND OLDER!!!! Keep the great work.... SMFH
Brad G why would you even bother putting money into a 1994... there still making brand new yz250's with more power and a better frame and suspension and your over there messing with a piece of junk
Another reason I bought a 2-stroke, I can rebuild the entire engine myself!
That doest make sence, replace gears both require splitting the cases. If youcan split the case and install a transmission, you can certantly remove a 4stroke head aswell.
Jens Eskildsen actually it makes more *sense than you think. There are no valves to check or reseat etc, your clearance checks are way more in depth and important on a 4 stroke. But even beyond that have you ever priced out a new head and jug on a 4 stroke vs a 2 stroke? We are talking a few hundred vs a few THOUSAND... I've busted more than a few knuckles wrenching over the years to know what's what.
You said "this" was another reason to buy a 2stroke, to which i responded. Theres no talk about heads ect in this thread or video. Its purely transmission, which is the same job on a 4 stroke.
Jens Eskildsen I can read and comprehend just fine, I find it amusing that you left out "another reason" in your little quotations. The bottom end of a 4 stroke these days is more than just gears and bolts, you have electrical components as well. But please continue.
Jens Eskildsen I also mentioned rebuilding the entire engine and not just the trans, so let's not pick and choose when debating, overall a 2 stroke engine is easier to rebuild than a 4 stroke engine, period.
What about a wide ration kit or video for the 06 YZ250F? Can it use the transmission from the WR250F?
Bro I am trying to do the same but it seems there not much info out
Would this also fit a yz250f? I do pretty much desert riding, I love the aggressiveness of the machine in technical terrarin and in sharp turns but I feel the bike too exhausted in flat fast terrain, I was wondering if this would help to make the bike more faster and better, or should I go for a 2011 wr250f transmission swap??
Unfortunately this kit is only available for the YZ250 2-stroke bikes.
The VIDEO and website description is wrong on that wide ratio kit. 3rd is NOT a taller gear on a X model. It is closer to second gear than a standard model. Only 4th and 5th are taller so the lower 3rd and taller 4th make a big gap between the two.
Thanks for the heads up. You are correct! 3rd is slightly closer to second on the X models. That makes a slightly bigger jump from 3rd to 4th, with 4th and 5th both being taller than the 4th and 5th on the YZ250. We'll get this updated in the description. Thanks! - Wes
Thank you, well done.
Can I just replace 4th and 5th gears, or do I have to replace 3rd in order for the gears to sync?
Did you ever find the answer to this? I had read that you could when going from yz250x to yz250r. But i know that you couldn't do this on a wr to yz gear swap, like what wr used to do back in the day.
I just ordered 4th and 5th. I hope that i don't need third but i will find out in a few weeks.
@@travisk5589 I didn't get around to doing the swap, but I did find on some forums that 3rd gear was needed. But that's forums, so who knows. Good luck.
Wear do I get the wide range gear kit and how much does it cost please ❤
You can click the first link in the video description to purchase and learn more about this kit.
Very informative. Thanks.
Isn't the 250X 3rd gear lower (closer to second) than the YZ 250 3rd gear?
The YZ250 has a 18 and 23 teeth 3rd gear(1.277:1) and the 250X has 16 and 21 teeth for 3rd gear (1.312:1).
So actually the 250X wide ratio kit has a lower 3rd gear compared to the YZ250 with only a 4th and 5th gear being taller than the YZ250.
That is correct. The description on Rocky and the video are incorrect.
I have 97 yz250 trans locks up when shifter is moved
what could be wrong
Awesome video really helpful thanx
Is there anything out there similiar to this for a 250f? I have a 2019 yz250f that I have to do a rebuild on and I really would like to have gearing closer to a WR. Any suggestions?
Unfortunately, there is no wide ratio transmission for the YZ250F. On some forums there are discussions of people using the WR gear set and putting it in their YZ 4-stroke but you would need to do some deeper digging to see what all is required.
l need new trasmission for my yz 250 1998 yz 250 2002 is fix?
At 11:50 you show a collar which has two holes in it. Should one of those holes line up with the hole in the shaft to allow lubrication into where the gear runs on the collar?
I was wondering the same thing
Will the gears in a WR250F 2008 fit in a 2008 YZ250 2T?
I have searched everywhere in Canada including my own local Yamaha dealership and I can not find Yamalube molybdenum disulfide grease, can I use assembly lube or regular 10w40 motor oil, if not is there any substitution that I could use, thanks.
“The molybdenum disulfide grease I used during assembly has a very high resistance to shearing (breaking down) which helps to prevent the potential for scuffing and galling during the initial start-up and running of the transmission. Though there are other products that are suitable for the job such as automotive engine assembly lubricants - the goal is to provide sufficient lubrication to the transmission components during initial start up to prevent scuffing and galling until the components are lubricated by transmission oil.” -Dustin
@@rmatvmc I believe that you have made a big error in advising the use of molybdenum disulfide Greece in the assembly. The Yamaha manual clearly advises the use of molybdenum disulfide oil. Which is a pre assembly Lube which this subscriber has questioned you about end is correct and wanting to use this oil. You should advise everybody not to use the grease as this is not the proper lubrication for this application. This is not my opinion this comes right out of the Yamaha manual.
Is there any chance you have a Cr250r wide ratio kit?
No. Thanks for asking.
Sell your CR and get a YZ :) that way you can enjoy continued support from Yamaha, the last Japanese company to produce an Adult sized 2stroke option!
Thats what i thought too...lol...
Does this kit come with everything you need to fit a stock yz250?
Yep, it does.
in the manual it has a o-ring in two places, With the wide ratio kit do you need the 2 o-ring and can i verify where as I didn't see them installed.
What bike do you have? The O-ring doesn't have to be installed until the cases are completely together and you are putting the sprocket on. This is the o ring that seals the countershaft to the collar behind your sprocket.
Hi my bike is a 09 YZ250F. I reviewed your video several times. I took a break as I was frustrated with this. Thanks for the info as I realized I was wrong. This is the first bike I'm rebuilding (the engine was taken apart when I started and I was not the one that took it apart.)
How did you get the case to look like new ?
He had them bead blasted before having a cerakote put on them.
Would it work if I only changed 5th gear? I got yz250 and want a little taller 5th for desert.
No, it won’t line up correctly
What the heck not???? It would line up correctly tell me why not??? I’m curious?
Can I get this kit for a yz125?
I thought they made the 3rd gear a little lower and the 4th and 5th giher
You are correct! 3rd gear is slightly lower on the "X" model. 4th is slightly taller and 5th is a lot taller than the regular YZ. Check out the bike build if you haven't already! th-cam.com/video/CcTbkdm9Af4/w-d-xo.html
How much?
It is currently priced at $385.62. www.rockymountainatvmc.com/p/2664/73725/Yamaha-Wide-Ratio-Transmission-Kit . Thanks
Does this kit fit in the WR426?
This kit is just for the YZ250.
@@rmatvmcis it still available 🤷🏻♂️
Some kit for yz250f 2010?
What is a wide ratio transmission?
A wide ratio transmission makes certain gears more broad by changing the gear ratio so the bike doesn't rev out as quickly and you can go higher speeds. Typically, 1st and 2nd gear are standard and 3-5 or 6 are geared taller.
you should consider wearing glasses when installing or removing snap rings
Thanks safety police. Honestly is this really a concern of yours? Do you go around and point out safety issues? Or do like just like the feeling of telling people what to do? The power?
Secondly, do you even know what a snap ring is? What will happen if it slips off the tool?
actually all the snap rings are not the same part number there is one that is different, but good video tutorial otherwise
?