Yamaha YZ250 Wide Ratio Transmission Installation

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Күн бұрын

Buy Now: Yamaha Wide Ratio Transmission Kit
www.rockymountainatvmc.com/pa...
This wide ratio transmission kit has all the OE Yamaha parts to convert your YZ250 transmission to the wide ratio transmission from the YZ250X. This kit comes with new 3rd, 4th, & 5th gears, circlips, and collar to update your transmission to a wide ratio setup. The new YZ250X uses the same 1st and 2nd gear as the regular YZ250. 3rd gear is actually a little bit shorter on the "X" models giving you a very useable 3rd, but 4th and 5th gears are both taller giving you a higher max speed and the advantage out in the desert or on higher speed courses.
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Пікірлер: 66

@krispewkrem3 6 ай бұрын

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

@paulmader1052 6 жыл бұрын

Awesome video really helpful thanx

@billybobbubbawubba9457 4 жыл бұрын

Thank you, well done.

@AzMtnThumper 7 жыл бұрын

Very informative. Thanks.

@bradg8814 6 жыл бұрын

Hey right on guys !!! THANK YOU FOR NOT INCLUDING US OLD SCHOOL 1994 GUYS AND OLDER!!!! Keep the great work.... SMFH

@offroaddomination5708 6 жыл бұрын

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

@IcemanSam650 5 жыл бұрын

Another reason I bought a 2-stroke, I can rebuild the entire engine myself!

@JensEskildsen 5 жыл бұрын

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.

@IcemanSam650 5 жыл бұрын

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.

@JensEskildsen 5 жыл бұрын

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.

@IcemanSam650 5 жыл бұрын

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.

@IcemanSam650 5 жыл бұрын

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.

@duanedowning8289 4 жыл бұрын

I have 97 yz250 trans locks up when shifter is moved what could be wrong

@thedani0937 3 жыл бұрын

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??

@rmatvmc 3 жыл бұрын

Unfortunately this kit is only available for the YZ250 2-stroke bikes.

@johnchafin3817 6 жыл бұрын

What about a wide ration kit or video for the 06 YZ250F? Can it use the transmission from the WR250F?

@thedani0937 3 жыл бұрын

Bro I am trying to do the same but it seems there not much info out

@marcialquinones5683 3 жыл бұрын

l need new trasmission for my yz 250 1998 yz 250 2002 is fix?

@rc7175 2 жыл бұрын

Will the gears in a WR250F 2008 fit in a 2008 YZ250 2T?

@tomasfranciscopalominoslar6257 5 жыл бұрын

Some kit for yz250f 2010?

@q95237432 4 жыл бұрын

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?

@overneath420 Жыл бұрын

I was wondering the same thing

@kemarreece5065 4 жыл бұрын

Can I get this kit for a yz125?

@jayfelix2976 6 жыл бұрын

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.

@rmatvmc 6 жыл бұрын

“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

@danielbohac4157 5 жыл бұрын

@@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.

@utahenduro4808 5 жыл бұрын

Can I just replace 4th and 5th gears, or do I have to replace 3rd in order for the gears to sync?

@travisk5589 3 жыл бұрын

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.

@utahenduro4808 3 жыл бұрын

@@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.

@bobbyespinozaespinoza2849 6 жыл бұрын

I thought they made the 3rd gear a little lower and the 4th and 5th giher

@rmatvmc 6 жыл бұрын

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! kzfaq.info/get/bejne/ecmElc6V0p-llmg.html

@douglasmatson9853 6 жыл бұрын

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.

@rmatvmc 6 жыл бұрын

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.

@douglasmatson9853 6 жыл бұрын

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.)

@Trigg-YZ250f Жыл бұрын

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?

@rmatvmc Жыл бұрын

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.

@danielplace1962 6 ай бұрын

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.

@rmatvmc 6 ай бұрын

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

@nk0723 6 жыл бұрын

Does this kit come with everything you need to fit a stock yz250?

@rmatvmc 4 жыл бұрын

Yep, it does.

@troyplayer2576 7 ай бұрын

Wear do I get the wide range gear kit and how much does it cost please ❤

@rmatvmc 7 ай бұрын

You can click the first link in the video description to purchase and learn more about this kit.

@patrickperez6857 6 жыл бұрын

How did you get the case to look like new ?

@rmatvmc 6 жыл бұрын

He had them bead blasted before having a cerakote put on them.

@vince5946 3 жыл бұрын

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.

@danielplace1962 2 жыл бұрын

That is correct. The description on Rocky and the video are incorrect.

@taylor2105 7 жыл бұрын

Is there any chance you have a Cr250r wide ratio kit?

@rmatvmc 7 жыл бұрын

No. Thanks for asking.

@IcemanSam650 5 жыл бұрын

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!

@summitdave8782 5 жыл бұрын

Thats what i thought too...lol...

@au3408 2 жыл бұрын

Would it work if I only changed 5th gear? I got yz250 and want a little taller 5th for desert.

@driscollmach1219 Жыл бұрын

No, it won’t line up correctly

@brianpriest7000 6 ай бұрын

What the heck not???? It would line up correctly tell me why not??? I’m curious?

@matt3122 4 жыл бұрын

What is a wide ratio transmission?

@rmatvmc 4 жыл бұрын

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.

@ClaytonSensiba 7 жыл бұрын

How much?

@rmatvmc 7 жыл бұрын

It is currently priced at $385.62. www.rockymountainatvmc.com/p/2664/73725/Yamaha-Wide-Ratio-Transmission-Kit . Thanks

@TheSkinnyboy1234 5 ай бұрын

Does this kit fit in the WR426?

@rmatvmc 5 ай бұрын

This kit is just for the YZ250.

@TheSkinnyboy1234 Ай бұрын

@@rmatvmcis it still available 🤷🏻‍♂️

@macunion1225 5 жыл бұрын

you should consider wearing glasses when installing or removing snap rings

@travisk5589 3 жыл бұрын

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?

@bobbyespinozaespinoza2849 6 жыл бұрын