Yz125 woods jetting I fit the YZ 2-strokes very well. would be apprechiated. Just drop a 410 in with the the needle still a clip leaner seems great but didn't have muche time to test and see if its too leane . The 250 is currently blown up, but it's great for pretty much anything when it runs. After nearly 5000 posts, my first post in the jetting section apparently violated some rule. Thanks Hi there, I am looking for some input on my YZ 125 woods build I plan to do sometime early 2023, I race motocross (just started recently) and I enjoy riding trails to help with my turns and holding speed on the track. I can't imagine preferring a bike like that over a YZ 125! My YZ has become my main woods bike. Checking Jets and replacing the idle screw on this 2003 yz 125 project. com. For your jetting I would try to adjust the clip to the next leanest position,2 turns out on your air screw. It’s not from not cleaning it out I’m an experienced rider and have a pretty good pace. I plan on buying a 2020 YZ125. I really feel like the 110s that come on that bike stock are WAY too much tire for any 125. Yz250 woods jetting. I have a CHERRY (like brand new) 2001 YZ125 that is going through an extensive "woods" prep. My last bike was a TTR-125 and I now have a YZ 125 and absolutley love it. Now that I have a new top end and I am putting money back into this bike, I want to make sure my carb is up to par just like everything else. Make sure that the powervalve hose is not 2018 yz 125 jetting help Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; 2018 yz 125 jetting help. if you like you 200, why not look at a secondhand 08 KTM 200? the bigger bikes really are quite differant, the 200 is a 125 with a big engine in it, and they really do handle tight woods riding a lot better then either a YZ 250 or 250 XC or XC-W, the 250 XC is however in my opinion a better bike then the are YZ stock for offroad riding, the I just reinstalled a fresh top end on my 2001 yz 125, cylinder is stock, the whole bike is stock. I mix my oil at 32:1. I have had about 5 rides on the bike and even though I love the bike, some things need to change in order for it to be a great woods bike. Buyers shouldn But, YZ 125's have come from the factory with fat (rich) jetting (for most conditions,) for quite a few years now. At 32 to 1 I foul out I lean it out to 40 to 1 and it runs fine. Share I have a 2006 STOCK yz 125 and used the [D size piston in a B cylinder reccomended by shop] Hey guys! I am wondering if anyone can suggest a good setup for a stock late model YZ in the woods? I haven't had any problems riding moto with the stock jetting, I have a lot of experience jetting the mikuni TMX 38 on the 125, but the 250 just ran so good out of the box that I never had to touch it. For your weight I would have no problem recommending the 125 for the reasons you stated. You can mitigate both by getting a good woods revalve and some band-aid sprocket help, but in the end a dedicated off road motorcycle is a fantastic thing. Going up on the rear sprocket may help with the tall 1st gear ratio of an MX race bike but, will also make it more prone to spin One really important thing you can do to get it race ready is to make sure the jetting is in order. would i have to go bigger on both jets if anyone as a yz 125 witha full dep on it could you tell me what sort of jets your running to give me some idea where The OEM cylinder head leaves a lot to be desired (see our FAQ), and it’s large squish clearance can lead to jetting woes, detonation, poor fuel economy and throttle response, and less I finally got a chance to do a real head-to-head comparison of a fully woods-prepped YZ125 and the new KTM 125XC. Regarding forks, at one point I owned, for about 9 months, a pre SSS 05 yz 125 along with my current SSS yz. 85. Going from a 410 to a 400 on a woods bike is a pretty safe move for the most part, especially with good gas and On a 125, you will usually have 2 to 3 jetting settings: one for october thru april (below 70 degrees, richer) and one for may-sept (leaner jetting) and if you're really nit picky Quick update on the B8ES in my 2003 YZ125 woods bike. My 05 125 had both the pro circuit pipe and vforce reeds when I bought it and I ended up switching both back to stock. as of right now what are you guys running on your bike (22-24 yz125)? im at around sea level and temps are in the 80s rn for southern Ontario. as I spend more time getting my jetting right than he does. I keep fouling plugs. com YZ133 Jetting members, While I’m waiting for my cylinder to get back from Eric, I decided to service my carb. especially since I weigh 200lbs. Jump to content. Here's a video, the issues can be heard pretty much throughout the entire video. Took it apart adjusted float level because i was told that’s why it might be dying and also have been trying to figure out the breaking up recently took the reeds off they were chipped on almost all corners badl Crisp jetting is the easiest way to get the most of what little 'low end' is available from a 125. By Bill_B, January 19, 2021 However when I went Into the Woods and rode a much lower rpm range I experience exactly what you Are saying Not sure why KTM changed carbs, maybe saw how well the old YZ 125s still perform and obviously thought it was because of Mikunis lol. The main is at 410, the pilot is at 2. com The 200 is equally good in tight woods but much better on hills and in rocks. Wondering what I should do jetting wise for my stock 2002 yz 125. Is there many changes you need to after such as jetting/timing. If you are still learning, I'd Consider converting your spare rear wheel (hub) to an 18" (new rim and spokes) and running a 100/100-18 size tire. I recalled seeing a bunch of folks on the small bikes using this carb. Share More sharing position, 40 power jet, and 175 main. It feels a little too snappy for tight sections and I would like smooth it down a little. One has low hour stock SSS suspension and one has been revalved by Factory Connection. SKU: JDY005 Categories: 2 STROKE PRODUCTS, YAMAHA PRODUCTS Tag: YZ 125 125X. However here in CT, it has been unseasonably warm and the weather was in the low 50's. I have a 2005 YZ125, currently set up for mx Im just wondering how good these bikes are in the trails when set up properly. Riding an 03 yz125 with 40:1 on pump 93 with Benol Klotz. what do you guys think about making a 2005 yz-125 for a hare scramble bike?i can get a new one for 3900 and have been thinking about it. I added a 15 oz FWW, geared up 2 teeth on the rear sprocket, and tweaked the low end jetting to precision. 44 hp. Looking at the manual, I don't see any jetting advice for altitude yz 125 1999 question on jetting Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; yz 125 1999 running 45 pilot and 350 main and standard clip on the needle . Eli Griffith. 5 (or 25. 24 Yamaha manuals still call for 72-75 pilot with 160-165 main, just leaner and richer straight portions on the needle for winter and summer. The 125 was the most fun. I love these bikes, and I credit them with rejuvenating my riding (I’m 56). I am always riding between 300ft and 800 ft. By belongaj, July 2, 2008 in Yamaha 2 Stroke. The pre SSS was revalved by Factory Connection, whereas my SSS was revalved by Address 1930 Carpenter RD SE Lacey, WA 98503-2915 United States of America Phone: 360-350-0557 Email: tech@jdjetting. I have a 2006. Figured I might as well buy a new carb. I would bet money that Diggers jetting spec will work just as good or better than the GYTR jet kit. While the European bikes are going fuel-injected, even on the small-bore 125’s and 150’s, the YZ125X still has a carb. To make your YZ 125 a perfect woods bike, you will probably Hey guys so been searching for a bike for a few weeks now with no luck hear in Alaska its hard to find a nice off road bike and too expensive to ship. I was getting some fouling on single track at elevations around 1500 feet and above. - 1 pilot jet. We’ve spent countless hours of testing to determine which settings work best when bolting on one of our pipes and silencers to a stock Personal experience with a 01 yz in the woods is if you have decent riding experience it will be fine but you will quickly learn you want more bottom end power. Not bad,but going to 51t on the rearshould be ideal for tight technical stuff. 2 Link to Carburetor - dealing with jetting. 50p. i love it. Still the 125 was the most fun and had the best suspension. Even the stock rubber is still pretty fresh. The ignition I'm running Klotz w/ 93 octane at 32:1. Jetting question. Posted August 7, 2024. $15. Same with the slide. Before you start the jet testing, Install a fresh plug. steve@sbmotoperformance. i rode it yesterday for about 35 miles, and its really fun in the woods. Jetting: Here are the 38mm Mikuni TMX jetting specs for sea level to 4000ft: Main Jet: 430. My issue with the I ride woods exclusively these days, and my favorite bike is my 2003 YZ125, followed closely by my 2006 YZ125. A heavy FWW is the key to woods friendly smoother power. Set the float level to the proper specs, an incorrect float height will affect your jetting all across the Here are our jetting suggestions for your YZ125. I use maxima castor 927 with a 35 pilot, 43-74 needle, and a 420 main. By Eli Griffith, August 7, 2024 in Motorcycle Jetting & Fuel Injection. I plan on riding it the day I buy it so I won’t have much time to mess with jetting before I ride. I bought this bike second hand from a local guy who claimed there was only about 15 total hours on it. I am probably faster on that then the yz's. I agree. It only improved an already great running engine. That plug looks perfectly normal for a bike that might be a tad rich, As for I ride 95% woods. I just rebuilt my 07 yz125 (top and bottom) now I’m jetting for winter I ran it for a bit it ran good didn’t seem too lean or rich but I pulled the plug and had no black or tan on it but only broke it in. Description Vehicle Fitment Description. My 06 yz 125 was running great in the woods with stock main (410), pilot (40), and accessory needle (6BFY 43 74 needle with clip at position 2, which should be 1/2 step leaner than stock if I'm reading the manual right) during the summer months, but now that the weather has cooled (50s), I'm foul I have a 1999 yz125 with fmf fatty. My daughter has a '99 YZ 125 and has been fouling plugs regularly. Anyway, I riding with my friend on with his "new" cr 125. I settled on 62P, 162M, NYCF-2 air screw 1. My 250 smoker has been collecting dust for 6 months now. Light Mode (Default So ive recently posted ab my troubles with my old 2017 yz 125 fouling plugs,spooging, etc while looking back i can tell how stupid i was not to take a crack at the jetting on it when all signs were showing it was running Jetting aside, a MX bike in the woods usually (for me) means a bit of extra physical work and resultant extra fatigue. to old for mx. Okay guys so I recently picked up a 2001 YZ125. I spent a lot of Looking for best jetting for 2020 yz125x at sea level. Get it as soon as Friday, Oct 18. It's in great condition with not that many hours (30-35 hours). ). This is totally fine I got the jetting sorted first and then I installed the Apex head. Personal experience with a 01 yz in the woods is if you have decent riding experience it will be fine but you will quickly learn you want more Best Bang For Your Buck Mod: Jetting. What would be the optimal jetting settings for here in michigan?(0-1500ft) for the summer 70-80 degrees and right now in winter 10-35 degrees Bought a YZ 125 last week, The best combo I came up with as far as woods trails and a fun field to play in was a 410 MJ and a 32. I still think a Husky wr125 would come out cheaper though when all done. My dad has a 2011 CR150/125 husky. This bike needed some maintenance, so I'm going thru just about every part to c We didn’t have to change the jetting once poured in and the color of the spark plug was always nice and brown. The two piece design allows for interchangeable combustion chambers (domes) to What’s everyone doing for jetting on 2022/2023 yz125? I’m around 500ft above sea level. YAMAHA YZ125 (22-24) quantity. I switched stock jetting to the sandy winter condition jetting (168 main, 70 pilot, NYCF-3) and fouled a plug the other day. 8hrs) I switched the main jet from 420@25C to 430@0C(32F) and didn’t seem to Hi 2S crew - I am putting my winter project back together and could not find a ton of experts on the Air Striker PWK. (has . I ride between 5000-9000 ft elevation in Utah. Eric is doing the AMA over-bore and ‘Mo-Better Everywhere’ porting job. Yesterday I had it warmed up and started to rev it up and it would cough until it finally cleared out. My buddies always complain about not being able touch the ground when they hop on my bikes. Thanks for the post. $79. Little to no spooge at all and power from bottom to top. Whenever is does succumb however, I'll need to gear down, as the stock gearing seems a little tall. The bike I found a 2001 yz 125 $1200 from a coworker bike is stock other than a fmf fatty on it. I have tried some jetting suggestions from other threads, but I still have a little bottom end miss or hesitation. I turn 60 real soon, and I don't want to be looking around for trees to lean the bike on when I'm retired. I had to completely rebuild the top end and when I was looking at the stock Mikuni TMX slide it was cracked. The low-end and mid gained was impressive! I'm 240 lbs. i run 30:1 with yamalube. I'd appreciate it if anyone could help me? thank you. I know this is probably not the best bike for this type of riding but it's all I got for now. yz125 jetting for big bore Theme . 85 $ 15. Add To I've ridden a '23 125X for the past year. The OEM cylinder Just bought my son a 1998 YZ125, it's at a buddies and I haven't gotten a good look at the carb mounting. Finally got out today for many hours of single track and woods riding in 90+ degree heat. We are Keihin and Mikuni dealer. Been using this combo for years with local racers even woods racers, with great success My jetting on my 2001 YZ 125 seems way to rich. YZ carb? What model yr Do you feel that the carb made it less forgiving for beginner? I suppose it makes sense to do the airbox mod at the same time so that the jetting can be set based on modified abox. 2019 KTM 125 SX jetting bike runs rough. I actually have my KX500 detuned to act reasonable in the woods. The jetting chart is an OK tool if the bike spends its life at WOT. i think you don't really need them for the '07 (though i'm about to install a JD kit on my '03 125) having said that, compared to the '03 model, from 2004 'til 2006, power from the YZ125 changed tremendously and you would be amazed at how smooth it was delivered, most notably the '06 i've tested - a complete standout . It was harder to ride fast for 2 hours in a woods race. Pilot: 40. OK, first my bike setup. I use a br9eg and they are 7 bucks a pop. Be aware that yamaha makes tall guy bikes! I'm 6'3" with suuuuper long legs. com As far as jetting, I have a '23 and am riding around sea-level and up to your elevation. I just adjust the psi in the forks and change the clickers settings depending on terrain for that day. Through I had an 02 YZ 125 from brand new it was not known for being a plug fouling bike even with stock jetting at 32:1 the previous owner sounds like an idoit running an #8 plug in the bike I NEVER had to do that with mine. By medalheatpistons, I'm a woods rider/racer, at similar temperature and altitude as you. Recommended Posts. There is simply no comparison, and everyone who has ridden the two bikes agrees (and most people are usually shocked at the magnitude of the Compared to other 125's the Yamaha has great bottom end power in stock form. I am looking to add a few things to my bike to make it a bit more “woods worthy” but not take anything away when on the track. My bike keeps fouling plugs and bogging out about 2 times a ride. For 14 out of the last 17 years, the YZ125 has been the best 125cc motocross bike made. Jump to Latest Hot/Humid (almost never gets cold) low elevation (sea level I think), ride off road/woods mostly, lots of sand 1991 Yamaha YZ 125 1993 Husquvarna WXE 250 1989 Kawasaki KDX 200 1986 Kawasaki KDX 200 1985 Suzuki RM 125 Fitment: 2005-2023 YZ125 / 2020-2023 YZ125X The SX/XC dome gives a big midrange boost with more power everywhere on the front side of the power curve. Some food for thought on the main jet sizing. If you use those in the trees the end result is that you'll slam into one. Some people tell novices that 125's cannot run well down low, and that they should re-gear, to make it better on the trails. I had both of the for short period last summer and to be honest, the 200 was mostly sitting in garage. 5 turns out, as the best I could get it where I could still lug the low end without too much wheel spin. + Can anyone give me a quick summary of typical YZ125 specific issues to look for, and what model years to avoid (if any)? I'm looking for my son who will be jumping from a KLX110L. would like to make it a trail bike, with the occasional woods type racer. I picked up the Kei Looking things over on this 1996 YZ125 to get it ready for some woods riding. just wondering if the wr is that much better or can i turn the yz into a wr beater and still save some money. I put an necj in my yz250 from a rm250 and loved it for woods riding. But Im looking at buying a 2022 KTM 125 XC for the woods cause I'm lazy about doing these adjustments and want one bike for MX and one bike for XC. I’m having problems with it fouling plugs. Available on backorder. Pwk is like $270 with the jd jetting kit $332. I was tired of d I’m going to be purchasing a brand new YZ125 this weekend, This will be my first 2 stroke I’ve owned and I know very little about jetting it properly. I also like YZ 125 more than 200 KTM in woods. 5 oz, Stealy 7 , 9 and 1 2002 yz 125. I'm wanting some advice on the jetting for my 07 yz 125 I just bought it last week. No longer would we have to change jetting for elevation, temperature, or The Ultimate Jetting Guide for Dirtbikes; YAMAHA YZ125 (22-24) Home. the hit is as it comes on the pipe. This item: JD Jetting Jet KitF . is this to lean for the motor. It fouls plugs pretty quickly. Then I installed the Gnarly Woods pipe with the TC2 and went for Need 2002 KTM 125 MXC jetting advice. Light Mode (Default) Dark Mode . Only 19 left in stock - order soon. Share He said he is woods riding, and the bike runs fine. But if I was a serious woods guy on a 125 the XC with a pwk would be my #1 choice. JD Jetting jet kit JDY005. We are Keihin, Mikuni and Lectron dealer - we're here to help. The best money you can spend is a woods revalve from a reputable suspension company. The carb has to be tilted a hair off center to clear the edge of the case 2019 YZ125 all stock except GYTR pipe/fmf silencer I’m currently having some issues with my new bike. Bike breaks up at high rpms and liked to bog out and die even if pinned. KZ-X (ANGUS) BROWN BOMBER - 1978 KAWASAKI KZ400. Just wondering what the best jetting set up is for trail riding in Michigan. The 125x lacks the torque of the 200, but makes up for it in high rpm power. com TSP Billet Cylinder Head - Yamaha YZ 125 - 2005 - 2021 - High Compression TSP Billet Cylinder Head - Yamaha YZX 125 - 2020 - 2023 - High Compression +1 408 459-8794. Where i live, it is pretty flat, elevation is 711 -715 feet if it is going to be ridden on trails where you are not gonna be wide open. Just replaced top end, new piston I have a 2001 yz 125 with pc pipe. 420 was a bit better with a clip leaner on the needle. what Hello guys , I've got a 2004 yz125 which suffers from poor bottom end/bogging slightly . Jetting was far and away the best improvement I've made to my 125. All week long I think about getting out there on the weekend and rippin’ around in the woods on thes We're still fine tuning this new carb on the 2023 YZ125X (2022/2023 YZ125). 5 pilot, Motorcycle Jetting & Fuel Injection ; YZ 125 fouling plugs fast! Theme . We are riding trails in the mountains 3,500 ft to 5,500 ft altitude and she was going through spark plugs every hour and a half. As for jetting, I've got no experience with the new bike, What all would a NEWBY to the bike world,need to do to set up a 2000 YZ 125 for woods riding and maybe a haresrcamble or 2. Can't quite clean up the midrange bog I get with stock jetting options so I ordered both a GYTR jet kit and a JD jet I'm also interested to hear if anyone has used the JD kit for the newer 125. Hope you enjoye I've never ran a Keihin, some say it's more tolerant to ambient temp changes and offer gains at lower rpms but this summer I trail/woods rode my YZ125 for the first time (usually it's a sandy MX track ridden only bike and jetted on the rich side) . Great questions! 1. Also with the Husky you can bore out to 165. - the 2020-2021 Yamaha YZ125X. Took it to the track last weekend and it ran great. Take a look at the main on the WR, with the same carb, leaner emulsion tube, and the needle looks to be the same as the stock 22 yz125s. Hi there, I am having troubles getting my jetting spot on with it sometimes being too rich and sometimes being too lean. It ran fine all summer long with stock jetting (woods riding and racing almost exclusively--very little track), except that I was running the accessory 43 needle in a position that would be 1/2 leaner than stock. Exceeds the performance of standard 2-stroke jetting. Search the internet and you will hear nothing but rave reviews about increased power and response from JD Jetting Kits! Address 1930 Carpenter RD SE Lacey, WA 98503-2915 United States of America Phone: 360-350-0557 Email: tech@jdjetting. Taller / more compliant sidewall for better traction/plusher After spending more than 2 weeks adjusting the carburetor jetting on my new 2023 YZ125 I have finally found an ideal setting and want to share it with you. I didn't feel any issues with the jetting, but then again I'm no pro, so I Hello, I have 2005 yz125 and bought Keihin PWK 38 carb with JD jet kit. I've ridden the regular '23 YZ and there is a difference, maybe not incredibly noticeable, but there is a difference. The power, suspension, and just the size is so much better. When I leaned out the jetting enough to stop the fouling, the bike lost its crisp throttle response, especially in the low to mid rpm range. By jk2paintworx, November 27, 2011 in TTR. JDY020. I read a little about kx125 needles being leaner than the yz125 and the yz125 is supposed to have I havent run a ktm125 in the woods but i did run a yz125(I'm a smaller guy so the light weight has a huge appeal to me). JD Jetting kits are designed so that you don’t have to be an expert to get professional high performance results!! Each two stroke kit typically includes: – two, dyno developed and tested, multi-taper needles Suits 125/250/300/500 JDKH41 $ 195. Everything is stock and I just rebuilt the top end. I run the bike in various temperatures throughout the summer months (1500' elev. the only problem i had was the gearing. Hey need some help on what jetting kit or what jets are needed to get this bike running good, 04 Yz 125 clean bike, good compression, runs alright with a new plug, and after a day at the track go to start it the next day won't I have a 2006 Yz125 that had stock jetting with 93 pump gas mixed 32:1 and would run perfectly when it was 50-70 degrees outside, at 1000 feet. All Activity; TT but going down at least 1 step on both the main and pilot will probably work for you in the woods at sea For maximum performance on a 125, you will need to make seasonal changes (usually just a needle clip and I heard the rave about the pro circuit jetting and the y4/y3 needle but they are sold out everywhere. Previous owner was running at 40:1. Pro circuit pipe and silencer also spice up the power again jetting the key. This is what we found out so far. I ride a 22 yz 125. He's al What all would a NEWBY to the bike world,need to do to set up a 2000 YZ 125 for woods riding and maybe a haresrcamble or 2. I'm going to buy a flywheel weigth. Flywheel weight and gearing Address 1930 Carpenter RD SE Lacey, WA 98503-2915 United States of America Phone: 360-350-0557 Email: tech@jdjetting. Just wondering what you guys are running for jetting? My '13 yz 125 was wayyyy riche with the stock 430 maine . The fit is not perfect, but it is pretty close. + Maxima Racing Oils AFR-3403-00 ProFilter Ready to Use Dual Stage Foam Air Filter, Single. 250 4-strokes are barely any better than 125 2-strokes. If you ride aggressively there really isn't better bike than 125. I Hey all! A little while back i started a thread looking to make my 125 a bit more trail friendly /topic/967798-2004-yz-125-trailenduro-mods/ So i decided to start playing with my jetting. We can also advise On the yz125 2022 I am fouling plugs on the jd jetting kit 0-3000 ft setting. While cleaning and inspecting the carb, I noticed the jetting is not what I was told I tried with a JD jetting kit that I have and there was not a noticeable improvement. So my plan is to build a 125 woods weapon. Thanks I have a 2005 Yamaha YZ-125 that I set up for woods riding in the mountains of Western North Carolina. I got better fuel economy as well which was great. The YZ might come out better in power, weight, and suspension though after lots of mods. If the bike is for single tracking and lower speed woods style riding then advice to learn to use the clutch and fan it out of turns is interesting but misplaced for the reason that those are MX track techniques. I've got a buddy looking at a new YZ125 and I know he's going to need help 2003 Yz-125 spark plug. once on the pipe it fly's , but the bottom end is so poor that even small hill starts can be a pain , now been reading up a little bit & have ttr 125 woods setup options. You can't have a screaming max hp 125, that will also chug easily up steep technical hills. - the 2001-2021 Yamaha YZ125. as some of you may know, i just got an 06 yz 125. The yz's sure are cheap. Perhaps you will find this useful if you’re thinking about going with a small bore for the woods. My jetting is 410 main, 30 pilot, 2nd needle position, 1 3/4 turns out. It has plenty of power to the woods and it's light and nimble bike. The bike smokes a lot around 1/2 throttle to full. and didn't have to tinker much on the stock Mikuni to get a good, crisp and clean running engine that actually lugs very well (not I love my yz's in the woods! My 125 is my main woods bike. The recommendations for the jet settings are at 0:16if you need them. pulled the top end off today. By Docholliday94, May 30, 2018 in Yamaha 2 Stroke. Wondering any recommendations on what I should do. The single best mod for most 2 strokes, including the YZ125, is getting the jetting right. I need help figuring out how it should be jetted. With FWW it's also very forgiving and easy to handle in hill I'm currently building a woods bike out of 06 YZ 125. I am a beginner/novice MX rider and currently mix at 32:1. Hope this helps!#howto #jettingspecs #yz125x I've been putting a lot of hours on my YZ 125 in the woods, and I must say that I been pleasantly surprised at the durability of the stock chain/sprocket set. Was about half way towards the cost of a pwk from jd jetting. I was running 13t,50t gearing. I typically only ride in the woods. i have a 2021 KTM 125 SX that I race and ride MX and Hare Scrambles and Enduros. The YZ125 horsepower is 34. I forget what my jetting spec's where now but I do remember having to order this updated Jet Needle from yamaha to get rid of this anyoying bog As we know, the jetting is horrible on these bikes stock. One really important thing you can do to get it race ready is to make sure the jetting is in order. The pipe didn't suite my riding style and the reeds made jetting a little more difficult and then eventually chipped. I just Here is my previous setup for -09 YZ 125 (very stockform)-suspension stock with minor changes (crossover shims added and smaller clamps)-gearing 13/50 for tight woods-Jetting idle lower than stock-stock pipe, I’ve been riding the wheels off of a couple of YZ125s (03 and 06, and I also had an 05 for a while) for a few years now. Yamaha 2 Stroke; Activity. 144 by Eric Gorr. Needle: 6BFY43-3. Is it worth the money and is it reliable. These are the best YZ 125 enduro mods for Hey guys I am wondering everything that you need for a 144 kit in a yz 125. V Worn reeds will mimic rich jetting, and worn rings will mimic lean jetting. I So I wrote up a summary post for the yamaha 2 stroke forum (I post things related to woods use and tuning for YZ125s). 95. I was given a warning, and my summary thread for the YZ section was moved here. Currently I have Question, I got a 98' YZ 125 all stock motor. My question is when should I be swapping out my main jet. The engine from the 05-21 years is about as good as a 125 can be in the woods for a reasonably skilled rider with nothing more than some jetting (the JD kit is the easy button). 2013 Yamaha YZ250 G2 Throttle Tamer 11oz flywheel weight Stock pipe and silencer 13x50 gearing Stock timing I first installed an FMF Turbine Core 2 silencer with the stock pipe. The question is about tuning for midrange ½ throttle and above. The bike is unbelievably bad in stock trim. does anyone know the factory jetting settings for a 2002 YZ 125? I've only been able to find what FMF suggests running, although I'm trying to get 'em back to stock. I bought the bike a long time ago, and never really messed with the carb. I am pretty new to jetting by feel, so please forgive my noobie questions. I bought it from craigslist and then added a free flow air filter which i think made it leaner and now im going to put on a pro circuit p ipe and I just bought a new CRF450 and im kinda getting to realize that that bike is a big PIA for the woods. What do you guys like to run in woods, 23 yz 125 cylinder. I have heard that the bike will run richer with the over-bore. I've never rode a 125 with a rekluse but i've rode other bikes with them and do not see the need, especially if your a C level rider it will hinder your learning curve of the clutch and throttle control. have lots of questions any input, tips etc. Now it's 90 degrees in The 125's come very lean. I just got a jd jetting kit and rebuilt the topend. it seemed like 3rd gear was good for corners and th 2001 YZ 125 Jetting. basically new. By whitetail25, November 9, 2024 in Yamaha 2 Stroke. I ride a little bit of woods from time to time, but mostly moto and the bike only loads up YZ125 2009. Hello I have a 2001 yz 125 and I think it is running to lean and I would like to jet it. In fact, in woods riding and racing, a 2-stroke 125 I also use a spark arrestor, that is also part of my leaner jetting than those that don't, especially on the main. Share More sharing options Followers 0. , and I love my 125 in the woods. I leaned the metering rod out a 1/4 turn and i'm still fouling plugs. By Angry bees, November 23, 2018 in Off-Road Riding Technique. I switched I have also had strange jetting issues with my 06, but not as weird as needing such a large main. The issue I had wasnt the engine( I had a 144 kit, fww, retarded the timing to smooth out the hit and It is based on the YZ125 motocross bike which had massive changes last year, so it follows in those footsteps with a mostly new motor, and completely new bodywork. Edited October 26, 2022 by ballbags Link to comment Hands down, the most important thing on a 125 is jetting. Alright guys, I have a 2002 YZ 125. By the time you add in the cost of a slide $99 and the needle and pilots and mains. i highly doubt that the '07 needs upgrading The YZ125 is unchanged for 2024 but since we didn’t give you YZ125 owners any love in 2023 we are here for some suspension and jetting specs. MSRP: Check your local VP dealer www. Started with 380 main, 40 pilot which I think is stock, and stock needle, 2nd clip from top. I'm always on the pipe and when i do rarely ride a trail it's briefly and if i'm ever really slowing down i'll pull in the clutch and rev it out. My friend and I Race bikes and motocross bikes, like the YZ 125, make us want to know even more. On a 125, you will usually have 2 to 3 jetting settings: one for october thru april (below 70 degrees, richer) and one for may-sept (leaner jetting) and if you're really nit picky one for July (mid 80's and up) . The target weight we used for this suspension setting was a range from I have also found that a hotter plug works well for the woods with a YZ 125. The jetting is weird on this bike. its that or hold out for the wr-125,which is 6000. Based on the way he will be riding (slow tight woods then WOT combos), I'm sure I'll be jetting it, since the first go around last weekend he fouled the plug twice (replaced with new plug both times and started right up). It's a big jump, but he's growing so fast I think he has skipped right past 85 and 100 sized bikes this year. Great 125 woods bike when you get the jetting dialed, but this can be tricky. This part is basically impossible to find and when I found one it was over $200. That l The plight of the Yamaha YZ125 brings a tear to the eye of every MXA test rider. I have two YZ 125s set up for woods. Air screw: 2-1/4 turns out. My 125 works great and has I bought an '05 YZ125 with some time on it as a "proof of concept" that the YZ125 motor and chassis could work in the woods. Ships from and sold by mx1west. Stock jetting in right now: 350:main 45:pilot 6BEF16-69:needle 4th:clip from bottom 2:air screw turns. Spooge comes out of silencer by the second. Any tips or suggestions would be great, thanks! current jetting: 170m. vpracingfuels. I used a br8 instead of a br9 spark plug Works great for me. red Jetting on YZ125 . Clip: 2nd from top. We last changed it two summers ago, after he bought it used and rode it for two weeks then one day he went to ride it and there was no compression. She is definitely running rich, and would like to get her more crispy like the 2014 she replaced. Any opinions what size to select? It seems that there are various sizes available GYT-R is 1. (pilot mostly) 2019 yz125 at 2200ft and 19c right now and running 35 pilot Air screw 1 3/4 , needle 44-74 2nd But I'm far from ghetto out here in the I've had some some request for a raw uncut video so I figured what would be better than the YZ 125 two stroke racing through the woods! If you enjoy be sure This jetting from pro circuit is at 1500 ft elevation, with c12 race fuel and 32:1 maxima 927. When I pull them out they are covered in Address 1930 Carpenter RD SE Lacey, WA 98503-2915 United States of America Phone: 360-350-0557 Email: tech@jdjetting. I've tried everything that I can think of, just curious if any of the 2 stroke guys on here can shed some light. No change in sound or power. Over the winter I bought a 2007 ktm200xc. Certainly worth a shot if you own a 22-24 YZ125. I am in Oregon also and really want to get a 125 but people either say they don't work in the woods or they are great. My step-brother is wondering if he should change his piston, or atleast put new rings. an Address 1930 Carpenter RD SE Lacey, WA 98503-2915 United States of America Phone: 360-350-0557 Email: tech@jdjetting. YAMAHA YZ125 (22-24) YAMAHA YZ125 (22-24) $ 195. I'm at 6000-7000ft. The bikes: The YZ was my 06, which I have owned and been tuning for the woods since a The Apex Technical Innovations billet cylinder head offers a two piece design made of 6061 aluminum alloy. it flows so well through the trails, and this is completely bone stock. first post as a proud owner of a 06 yz125. Installation was straightforward. Yz144 Woods Bike Build. Products. Ships from and sold by Amazon. Add To Cart Quick View. 00 inc GST. And if anybody who has done this before has any advice or opinions on it please give them to me thanks! The bike is I got it from JD jetting, and it came with a JD jet kit for 125 and 150 engines. I'm at altitude in Eagle County, Co and have considered the Eric Gore 144 for my 06 YZ. I know the 0 to 3/8ths throttle can be the hardest to jet but Ive got that range covered, nice and clean with a fair amount of - 125 below the band - pull. Probably not a popular thing to say on a KTM forum, but 125 bliss in the woods can be achieved far more easily and inexpensively with the standard yamaha YZ 125 platform. I have been fouling way too many plugs As in I make it 20 mins before it quits. Love the Rekluse,if your riding woods,have the suspension revalved. I live in ill Yes. couldnt read it that well), and the air screw is out about 1-1/4 turns. I have a 2000 YZ125 that I bought a little over a month ago. com jetting for 2008 yz 125 Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; jetting for 2008 yz 125. The big culprits are suspension valving and internal gearing. Share the jetting isn't spot-on and/or, the engine not pushed hard/hot enough. That's why I'm going with the kick stand. he only trail rides it for fun, so i'd say he's put about 10-20 hours on it max since then, but we'd have to go through and think about it. It's sweet now the yz is a great bike. In Stock. The TxXsChainsaw. . Bike runs awesome, check out the “40 power jet” thread in the yz 2stroke forum, lots of guys with good results using this set up 1 Link to comment Share on other sites. I I picked up a 2003 YZ125 with just a couple of hours on it. Members; 6 Location: Kentucky; Share; Posted August 7, 2024. It's not possible to change the powerband of a 125 with jetting (if that's what your asking), but if you are having running issues and plug fouling, you usually don't have to stray far from factory settings on YZ125s. Lots of slow going and rocks. Stock motor and pipe. 95 $ 79. exaaw bwmhnp azaez xzrs rpz ywtpv dnvo dfykr vwlftqff ciwatd