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- เผยแพร่เมื่อ 28 เม.ย. 2018
- In this video I install a JT 47Tooth steel sprocket and a 520DZ2 Motocross chain on my Yamaha WR250R. I bought a 120 link chain that I ended up cutting down to a 110 link chain. Check out my how to break a chain video on my channel. So after all installed I definitely noticed the lower end torque. I was able to actually lift the front wheel off the ground in first and a little in second under just its own power. Much needed for off roading over rocks and logs. For any questions or comments please leave them below. Please subscribe, like, or share this video. Make sure you check out my channel for all my mods to my WR250R. Thanks for Watching!.
Good topic . Not sure if my riding style needs a bigger sprocket and chain.. thanks for sharing . Around Bend Oregon out!
Hey, keep up the good work, simple to the point how to's. I've got the same bike and your videos give me lots of ideas. Cheers!
Dan P hey thanks for the feed back. I have a few other ideas that I will be doing soon
Thanks for the video, I’m definitely going to go to a 47 tooth on mine this is super helpful for showing how to change it
MrCrayonUniverse no problem man. TH-cam has helped me over the years I figured it was time to give back. Have you seen some of my other vids? I have about 28 vids on my channel on the wr250r now. Cheers
Bigair01 I’m definitely going to check them all out as I go, I’m planning to do most of the stuff you have on yours, budget permitting 😂
@@rawspaghetti9947 I am in same boat. I still have a few mods I want to do but Cashflow is hindering it hahah. Eventually right! Cheers
Nice!
Thank you! Cheers!
I put the 47 on the rear while watching this, good overview. I messed up flaring the rivet on the chain by a few hundreds of an inch so I ordered a clip-style link like you used. Hoping to use that and not worry about needing a rivet. How has yours held up?
Not an issue. Just put it on the right way. Also if your forcing it you will bend or break it. But it’s pretty straight forward
I just changed my chain and sprockets on my WR today. Thanks for putting these videos on TH-cam, they help me a lot! Did you threadlock any of the bolts when you put it all back together? I’ve read conflicting information. I used Loctite on my rear sprocket bolts but I’m not sure if it’s needed on the axle nuts or the front sprocket nut since that one already uses a crush washer.
Anthony S glad to help ya out. As for lock tight no I didn’t. I just regularly check my bolts and nuts on my whole bike and retighten if they become loose. I haven’t had any issues with bolts other then the bottom bolt on my kickstand. Otherwise no problems at all. Thanks for the feedback.
Anthony S what gearing did you go with?
Bigair01 I went with a new oem 13t for the front and a 47t sprocket for the rear. I bought larger tires so the shortened gearing helps even that out.
Anthony S nice man. How do you like it?
@@anthonys9754 Anthony S, did the 47 cost you much top end speed? I just bought a Dunlop D606 rear and it is a slightly taller tire. My understanding is I lose some bottom end torque. To offset this, I went with a 45 tooth rear. I hear the 47 will start to wind out at 60mph or so. I am trying to improve my low end torque better than stock since the bike stalls at very low speeds. Any info you can share will be much appreciated. Just got a new-to-me WR250R.
Does your sprocket not hit the chain guide under the Swingarm? I have the same JT 47T one, and had to push my wheel way further out so it doesn’t interfere.
Goon Rides mine does not.
yo man do you still have your wr250r love the vids
Yes I still have the wr250r. Just been working on my sons bikes as of late. But I still want to do some more vids on my wr250r. Everything unfortunately has been slow in getting parts due to covid.
New WR owner here. I just went to a 48T and installed a new chain (stock in the front). Any specific technique you can recommend for measuring/determining chain tension?
Ok, I just found your other chain cleaning/adjustment video. How has that 3-ish finger measurement worked out for you? Any premature guard, swing arm wear, or other issues? Thanks. I enjoy and benefit from your videos.
Hey Bobvall9731 I have another video on my channel that shows how I clean and adjust my chain if you want to check it out on my channel. The way I adjust my chain is at about the 10:30 mark in that video. th-cam.com/video/tgRcwAM33FE/w-d-xo.html there is also a link I added at end of this vid. If you are a new WR owner congrats, and make sure you sub for all my vids I post in regards to this great bike. Cheers Thanks for watching
I find it no issues it about 2-3 inches from chain guard with my fingers and wear is normal. From my research I learned changing the front sprocket size will increase the wear, so I never changed that. I have used this way of measuring my chains my whole life. Never had any issues. The adjustment just has to have enough tension, but not to tight. I just find my fingers easier then a tape measure. Glad I can pass on some of my tips. Hopefully they are helpful for you. I have done allot of mods to this bike and have a few more planned in the future. Cheers
I also weigh about 190lbs...so if you are lighter or heavier adjust accordingly. You just want the chain to be taught but not stressing the front sprocket shaft cause its to tight, and not so loose that it wears the sprockets out prematurely. A loose chain will have a very jerky feel with chain slap when you ride the bike. Hope that helps.
Where exactly did you buy your chain/sprocket combo? SRMoto?
Pretty sure I bought both chain and sprocket from amazon. The sprocket I may have gotten from fortnine. I didn’t say in the vid?
I’m about to do this with the same sprocket setup (13 - 47). So would u recommend 111 links since 110 was tight?
No. Remember that new chains will stretch. 110 has worked perfectly on mine. But it will depend on the chain as well. I regularly adjust my chain so 110 works fine. 111 or 112 you may have to remove a link down the road when the chain stretches past the adjustment range. I bought a bigger chain then needed and cut it to length. I have a vid on cutting the chain on my channel. Hope that’s helpful. Cheers
@@bigair0176 hey I not sure if I understand correct. The 110 links is the exact size which I need for combo 13-47 and I not need cut anything right ?
Hey pal one more question .... 520 X Ring chain would work as well right ?
Yup. Just a heavier chain and hold lubricants longer but should work no issues
Bigair01 Thanks As always man ... appreciate it
Any luck with finding a master link for the stock chain? I have 2 wheel sets, and for summer road rides use the stock 43 rear sprocket / wheel swap. But for trail riding I have a 49 tooth rear. New chain like yours for the 49, but swap wheel out with the 43.,I need to put the almost new chain back on. Who makes a master link for OEM chain? My Yamaha dealer couldn't help me.
Gary the stock chain is an "O" ring chain 520X108L I believe. So a 520 Masterlink should suffice as long as its a "O" ring master link. I'm Sure DID makes something like this for you. In the end you would have to cut a link out of you stock chain and replace with the master link. Cant be that difficult. I find it hard to believe your dealership cant find an O ring master link for your bike. I never went that route as I wanted to lighten the drag and weight of my chain. Thats why I went with a regular chain, not an O ring chain. If you bought an O ring chain for your 49 tooth set up, you could always try the masterlink from that chain. Its been so long since I looked at the stock chain to verify the brand. I thought it was DID. Hope this is helpful bro!
@@bigair0176 I plan on getting NON O-Ring for the dirt sprocket...as I call it. But when the Buds get together for a big ALL pavement ride, I'll swap wheels with 50 /50 tires and 43 tooth sprocket, and be a lot smoother and quieter than the dunlop 606 howling. Nice having a quick swap set of wheels / sprocket / tires. Like having 2 bikes in One. Dark in my cabin / shop. So went out to my 2020 WR and sure enough, with high intensity light, It's a D.I.D chain / 520 V. Yep, little embarrassed on that one.
@@sinewave5020 nice. Well you will have two different master links but that’s fine. One for each chain. I have a sm setup and a dirt setup. Both using 47t sprocket. So no need to change the chain on mine. Made life easier.
Help please what side does the taller spacer go on the rear wheel axle sprocket are brake side?
Looking at mine I believe the taller goes on the sprocket side. But they only goe on one way. So if you are having troubles lining up the brakes and it won’t quite fit just switch them around. I couldn’t put it on if they are on the wrong side.
How does the 47t sprocket fare on the highway? I commute regularly to work but would also like the extra torque for off-road.
Anthony S the 47 works fine for me. The stock 43 would do over 140kmh. The 47 does easily do 120. But I need a speed healer on the bike to be sure. I use the bike to commute as well and it works fine. Being a six speed there is a lot of shifting but that’s it. I would do the 47 again or even a 48 or 49 for even more torque. But 47 is a decent balance. Hope that helps
@@bigair0176 I feel like I’m overworking the engine when I’m doing 110kph seems really high in the rev range. Do you think it could be bad for the bike? I’ve got 47t rear and 13 front.
@@Jollyswagman7 as long as she don’t overheat I would say no. I have run mine for 30min at like a hundred the whole way. If it was me I would have two different setups. My sm tire setups would have prob the stock setup if I had to commute on a highway for a long period of time everyday. I would have my dirt setup with a 47 or 49 rear for the torque. The stock 43 won’t have the same torque, but it will certainly bring down your revs at 110kmh. Honestly these bikes are only fun at the lower speeds. The highway speeds the bike is to light and uncomfortable for long runs at 110kmh. But I have done it. I feel ya cause I almost had to commute 40km, and I said to myself there is no way I would commute on this bike that far everyday. I would buy a street bike if I had to commute that far. Just my two cents. Cheers
@@bigair0176 Yeh I think your right. I’m trying to find the best balance between road a dirt because I ride long stints on the highway to get to cool forests and places. But yeh it’s very uncomfortable at those speeds.
Next time I change tire I might have to lower the ratio a bit. Was thinking 14f 49r
To get chain away from swing arm also
So annoying because I just changed sprockets not long ago. You try and get a unicorn bike to do everything but it’s easier said than done.
@@bigair0176 I road 100kms on the freeway and it wasnt fun the first time riding it.
Hi, did the chain, new sprocket hit the chain guide now? What about going 14 in the front. They say that the chain cuts the swingarm with the 13 when the suspension gets used hard. Is your swingarm damaged at all? Thanks
I have just under 15000km and have had zero issues. I clean and adjust my chain regularly tho. I have had no damage to swing arm and minimal wear on the chain guides. I would caution any aftermarket front sprocket. I’m sure you can find threads where guys have stripped the front spline cause they installed or used an aftermarket front sprocket. I never changed mine for this reason. But if you do make sure you watch it so it doesn’t get loose and strip the spline.
@@bigair0176 Thank you! I looked at mine again and I'm pretty sure the chain slide protects top and bottom of swingarm anyway, right? Are folks taking the chain slides off for some reason? One guy had lowered his bike and that may have been his issue.
@@wetlifesports just keep it adjusted and watch it regularly. Replace the slider if it gets to worn.
So the non oring chain is not necessary? steel chain only and a bit more maintenance? your happy with that?
I have been very happy yes. It is lighter and a tiny bit louder but it’s a dirt bike. Totally up to you on what ya go with. I have not regretted it personally. Cheers
@@bigair0176 sweet man thanks for the response, keep up the good videos your really helping us all.
I heard a 14 front 47 rear is a good setup I just bought these for mine to try I replaced the slider and rollers they were all worn good time as everything’s apart
Yes you just have to make sure you that you install the 14 properly. There is lots of people who put a 14 front on and ended up with stripped splines. So be sure to install properly and watch that the sprocket is not stripping the shaft.
@@bigair0176 why what’s the issues with the 14? If it’s not a oem?
@@markkus1134 not sure. Prob a cheaper metal and they strip the spline. If you research front sprocket wr250r issues you will see what I mean. I haven’t done the 14 for that reason. I saw a few vids where the main spline got stripped because of an aftermarket sprocket. I’m just saying be careful and watch that the sprocket isn’t loose and stripping the splines. I check my stock one all the time to make sure it’s ok. Cheers
@@bigair0176 I think people forget to bend in the lip on the nut into the small grove on the spline shaft and nut cones loose and the sprocket slips off a bit saw one guy his whole shaft was stripped off
@@markkus1134 ya it prob could be that. Either way make sure you watch it. Ride safe
What made you do 110 and not 112 like everyone says? I think it’s because you loosened up the Swingarm bolt? Lmk!
Nope I just went with the length that fit the best at the longest adjustment. I know all chains stretch. So a 112 will eventually potentially be to long. Just seemed the best cause I was breaking the chain anyhow.
Bigair01 oh... see now I’m confused. I don’t want to keep switching it up, so idk if I should go with 110, 111, or 112. I still think 112 is good but idk.
Goon Rides you will be fine at 112 I’m sure. If you have to take two links out or a link out it’s pretty easy if you have a grinder or Dremal along with a chain breaker tool. I have a video on it.
You will only have to take links out of the chain stretches and you can’t adjust the chain tight enough anymore
Bigair01 yea I don’t have a dremmel lol
Does gearing affect the fuelprogramer settings? Thanks
You may have to change some of the settings but shouldn’t affect it that much. If your going to bigger rear sprocket it will definitely make the bike have more torque. I have a vid on programming the fuel controller if you haven’t seen it yet.
@@bigair0176 Thanks buddy
Quick question Sir. For breaking the chain, why would you not remove the front sprocket also and then remove the chain when it is whole, without breaking it. Is this possible at all? Thanks.
Max Mollineaux I’m sure you could. I would just use a master link now anyways but even if you took sprocket off you would have to take apart the swing arm to get the chain off anyhow. Easier to break the chain and use a masterlink
@@bigair0176 Got it. I didn't realise you would have to take the swing arm off. Thanks again!
@@maxmollineaux1258all good man I enjoy helping where I can. Cheers
@@bigair0176 OK, JT 48T rear sproket, DID chain (o-ring), chain breaker, chain wax all purchased tonight. I think that I just need to by a dremel tool then I be all set. Oh bugger, I need a bike stand too...;o)
Max Mollineaux nice! Sounds like you are ready to get your hands dirty! It’s pretty simple to do. My video was the first time I broke a chain and installed a new one. If I can do it, you can too. Cheers!
how much you pay for the chain and sprocket
evan stockdale I think my chain was about 90 on amazon and about 40 for the sprocket.
my master link is on wrong then oh crap
evan stockdale if you put on backwards it can possibly be easier to be knocked off by brush or whatever may snag it.
hey do you think 13 front sprocket 46 back is a good mix i got 15,000 miles factory i want a lil more torque somthing different and mabey i could pull wheelies in 2nd 3rd gear more easier what do you think or recomend.Thanks for your help
hows your 47 is it to much would you do any thing different im worried ill wind out way to quick put more power might be fun
Evan. I read allot about the front sprocket on forums and youtube. Try to stick with the stock front sprocket because if you go with the bigger or smaller sizes they either rub on the swingarm or the chain guide allot more. Also make sure if you buy an after market front sprocket it is the correct one. I have seen horror stories of aftermarket front sprockets grinding the shaft. Not a good thing. I am happy with my 47 tooth. It can do minor power wheelies in first or second gear which is all I wanted for the off road lifting front tire over a puddle or a log. I think it would be a bit better for wheelies with the 48 or 49 tooth rear sprocket. My 47 still allows me to do over a 100kmh no problem. I do need to do a speed healer tho which I will probably do this winter. Stay tuned for that video. Hope that is helpful.
4 shure i agree. my front is 13 that will stay the stock way and im contimplating 46 i just dont want to loose to much speed but a little more torque would spice things up it will help my 2nd geer wheeles.
Would it fuckin hurt to mention what socket you used?