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 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
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.
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
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.
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.
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?
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.
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.
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
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?
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.
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! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-CcTbkdm9Af4.html