Yz125 jetting chart. This version of the YZ125 is known to be lean on.
Yz125 jetting chart Share It comes with the JD jetting kit but the jetting is completely different from stock it seems so I have no idea about a baseline so I was wondering about some help or to hear This jetting from pro circuit is at 1500 ft elevation, with c12 race fuel and 32:1 maxima 927. With a fresh engine (top end, reeds, seals), corrected squish band height, good fuel and crisp jetting 2021 yz125 jetting . 450m , 480m , 500m with slightly richer needle clip. I split the cases to find a main bearing grenaded and fixed that and now I am in the process of reassembling the motor. Link to comment Share on other sites. 605. 75. MSRP: Check your local VP dealer www. It’s around 50 and below in my area so on my 2002 yz125 I installed the blue needle on the second clip and a 440 main. Cleaned it, carb kit, float setting, JD An FMF Fatty (or any aftermarket part that is externally bolted-on) will only get you marginally better low end than a stock pipe, . vpracingfuels. The setting is 165 main, 62 Pilot, and Y3 needle in the 3rd clip. I think I am new to the 2 stroke world and just bolted on an FMF SST pipe and Vforce3 reeds to my 2006 YZ125. I ended up wit My jetting; My jetting closely approximates that of the 2018 KTM 150xcw. I have a 22 yz125 and have been experiencing problems with the jetting and the bike running since I got it. I too am at 1000 ft. yamaharider471. 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 Picking up my YZ125 from the dealer soon. YZ125 2006, jetting help By DrScandinavia, May 24, 2013 in Yamaha 2 Stroke. Current visitors New profile posts Search profile posts. 5-2 turns out. 34. Now, let's move on to some dyno charts. 125s need to be up in the revs to make power. As a comparative here's the 2010 YZ125 factory service manual jetting chart. 70 power jet The GYTR kit I decided to get my yz125 out for the weekend for some funtimes. YZ125(X) Individual Domes (YZ125 2005-2024 & 2020-2024 YZ125X) from $105. . The kit comes with instructions and charts that carefully walk through the installation process and offer guidance to help get peak performance at all elevations and in all conditions. But to be sure and get it in his sweet spot you might need to put the jetting back to stock (Canada also) and raced the bike this weekend The bike does seem rich when sitting on the line and when warming it up but have no complaints when racing on the track. The kit comes with instructions and charts that carefully walk through the installation process and 2024 Yamaha YZ125 Suspension/Jetting Specs. Clutch Specifications For Your 1997-2001 Yamaha YZ125. I loved my yz125 in the woods, and I’m about your size. These specs are for a 99 yz125 running 32:1 premix on ethanol free 92 octane fuel. Air screw / pilot jet selection makes a huge difference if either the engine falls on it's face or, pulls cleanly My 2000 yz125 leaks gas from the carb float bowl overflow in low-mid rpm’s (seems to go away at higher rpm’s), and if the fuel cock is left on. com/Some answered questions in this video, JD jetting kit install. 2strokesonly. We took it trail riding and he fouled 6 plugs. but now since the weather is warmed up to about 60 degrees I will go to a 420 main. Can't quite clean up the midrange bog I get with stock jetting It’s a ‘21 I bought brand new this summer so the jetting is stock on it now. maybe this will help. 5), but changed my needle jet from an s-7 to an s-4, and the jet needle from a 43-75 to a 43-74. Below are my unscientific findings on a pre-2022 YZ125 engine but same principals 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. I will be interested if the 2023 has a new air boot and updated jetting but if not for racing the stock jetting works. Then we put jetting back to 2006-2010 jetting and I took bike out for a rip jetting was crisp and clean. Edited November 16 The late model (2006-current) YZ125 has very good baseline settings straight from the factory. Start with the airscrew at 2 turns out and you will be within ¼ turn + or – from the optimum setting. Please remember that sometimes the stock OEM jetting will work just fine, other times you may have to make an adjustment, so use our suggestions below as a guide to help with your jetting problem. NYDF, NYEF, and NYFG). CA WhyZee12345 5/22/2024 - 8:02am. 11/12/2018 10:43am. I am pretty sure the last two numbers of the needle are the diameter at the largest point. Jun 24, 2017 Great to hear. Y. I cleaned the carb a while ago, it went away for a little bit, but ultimately came back. James Dean purpose-built this jetting kit for riders looking to improve running performance and throttle response throughout the RPM range. Members. 2k views 10 months ago. The low and top end power seems good, but the midrange really needs to be cleaned up as there is a hesitation before the main James Dean designed this jetting kit for Yamaha riders looking to push their motorcycles to the next level. For that reason I take the lazy way and use the iPhone app for yz 2 strokes,it uses your locations god weather and adjusts your jetting 2018 yz125 jetting help . WhyZee12345. Also read that people have been moving more towards yz250 jetting standards to get this thing right. Since it came off another 125 I thought the jetting would be pretty close. 125 2014 yz125 jetting. I'd first make sure this 20 year old carb is 'healthy', as in new jet block and fuel inlet valve seals, link: My brother-in-law has a 2001 yz 125 and his jetting is 25 pilot,460 main. The bike starts and works perfectly, but it is running a little bit rich, and I worry that in the summer it will get even richer, so I decided to take a look at the jetting. If I'm reading the charts correctly, compared to USA standard you are richer in the pilot and main, but leaner in the needle, right? Edited May 24, 2013 by rjpjnk. IA US jridout12 5/10/2021 - 9:06pm. 5/10/2021 - 9:06pm. The kit comes with instructions Here's a quick reference jetting chart for '01-'08 YZ250's It was made by taking Yamaha's manual recommendations and using the density altitude calculator to So I was given a 94 yz125 that was locked up. The target weight we used for this suspension setting was a range from That jetting was the ProCircuit setting referenced in MXA on their 2023 YZ125 ProCircuit race bike. The bike already had an FMF Powercore 2 silencer, so I left that on. 3rd from top air screw: But we found the bike is jetted a little. , but am running the stock pipe, with an FMF "Q" spark arrestor. aside from cylinder porting, reducing the squish band height and, fine tuning the jetting will net you the most noticeable low end gains. Forums. Set the float level to the proper specs, an incorrect float height will affect your jetting all across the All you need to do is find the temp and elevation combo for where you will be riding and adjust your jetting accordingly. Jetting seems to be really good right off of the showroom floor. I’ve read everywhere that it’s jetted rich from factory. (about 2 hours) then every other ride another plug would foul. The kit comes with instructions and charts that carefully walk through the installation process and offer guidance to help get IMO that JD chart is pretty basic for a company that specializes in jetting 'solutions' as apart from elevation, it does not consider temp variables. Yamaha YZ125 (22 Any chart is just a suggested starting point, you have to experiment to achieve the 'best' settings. Manual gives no clear indication of which way jetting needs to go. Does your manual include a jetting chart similar to this (again from my 2010 Plug type and heat range is really the very last thing you do once the other variables and the jetting has been fine-tuned. of 80-100f. You’re a little big for it but nothing it can’t handle with proper throttle and clutch control. My YZ125 idles very well, it would probably go 30 minutes before it would start to load up, even running a 30:1 premix ratio. The bike is running rich but im now fouling any plugs. 4/23/2018. Make sure that you have the motor up to normal operat Rode a 2015 yz125 on Friday that I was helping jet. Jun 5, 2013 #2 Welcome Troy The pro circuit jetting will probably be really close. YZ125(X) Billet Cylinder Head Kit - 2 dome (2005-2024 YZ125 & 2020-2024 YZ125X) 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 Part 1 of 3 videos on how to jet your 2 stroke MX dirt bike. It’s a better bike overall. Hi all, does anyone have experience with the JD jet kit and/or the GYTR jet kit in a '23/'24 YZ125X? As we know, the jetting is horrible on these bikes stock. Share Post. You can James Dean purpose-built this jetting kit for riders looking to improve running performance and throttle response throughout the RPM range. to/3CmHY7u. I bought the bike used and im assuming all the jets are stock. But we found the bike is jetted a little rich most 2019 YZ125 all stock except GYTR pipe/fmf silencer I’m currently having some issues with my new bike. 1 The pro circuit jetting chart is a great baseline to use. More sharing options yathump. Keep in mind these settings are for MX track riding, if low speed trail riding the pilot may be a tad rich and, 2022 YZ125 Dyno Tested for stock Baseline. I highly encourage you to read that jetting thread as many time as you need to understand it. Right now I am at the second clip position on the needle. May 16, 2016. 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. This is what we found out so far. I have a 27. The kit comes with instructions and charts that carefully walk through the installation process and The kit comes with instructions and charts that carefully walk through the installation process and offer guidance to help get peak performance at all elevations and in all conditions. YZ125 Cold weather jetting. Bike has stock jets, needle clip raised one notch and a new Fresco silencer, I am in the uk and typically 200-700 ft above sea level, with normal english i have a freshly rebuilt 2001 yz125. 395. I got it for $100. Proudly made in USA. Configuration options. The stock jetting was a #430 main, 3rd position on Most do not change the power jet, if you look at OEM jetting charts over the years they typically want the consumer to change the needle more than anything else. 2008 Jetting (USA model) Air Screw: 2-1/4 Turns (out from closed position) Slow Jet: #40 Needle: 6BFY42-74 (3rd clip position, from top) YZ125 2001 YZ 125 jetting? Keihin 38mm PWK. My YZ125 has a Pro-Circuit works pipe, a SA silencer, and a Vforce reed valve system. You We have recommended jetting charts available for many models as images in the product listings. I can't figure out the other dimensions without a dimension chart but if I have to I can guess. Don’t need a pile of parts I don’t use. I am running the stock main jet, and pilot jet of the 125XC (470/32. Posted February 12, 2015. ) plus a detailed chart in the service manual suggesting required changes for temperature variables. Here is the chart from the 250 manual showing the power jet. Bike bogs under half throttle but does not at full throttle. JDY021. Make Model Year ; YAMAHA : YZ125 : 2001 - 2021 : YAMAHA : YZ125X : 2001 - 2022 : Related products. The 2006-2016 YZ125 has very good jetting to begin with (pending you keep the engine healthy, top end / reeds etc. Free Shipping on orders over $50. There’s even a tip on how to route the Worn reeds will mimic rich jetting, and worn rings will mimic lean jetting. 240drew. 5/22/2024 - 8:02am. I have a 2021 yz125 with a pro circuit platnium pipe and r-304 exhaust and muffler and was looking to jet it. 1. This is my 1st 4 stroke and am wondering what t yz125 jetting charts, how to tune 2 stroke carbs, etc. Hope this helps!#howto #jettingspecs #yz125x Hi all, Recently installed an APEX cylinder head with XC dome on my '23 YZ125X to correct the squish. Why don't you post a Keihin jet chart that has the area sizes then this well work and everyone can us this method and make their life simple. Jump to content. Main 420. I've been running Yamalube R at 32:1, but I will be switching to 24:1 when I ride this year. I have recently replaced the top-end (OEM D size), spark plug and have two rides on it and notice a slight flat spot/bog/hesitation around a 1/4 to 1/2 throttle. Owner put a pro-circuit shorty on as per my suggestion that he get a 05-10 stock silencer or a aftermarket. Posted December However the yz125 comes from factory jetted quite good for sea level and 70f. I have posted in the jetting forum and searched but came up without an answer. 00 off eBay. The clutch is going to be your best friend on that bike, but it can be an Hi, I have just bought a used Doma pipe for my 2000 yz 125, do you guys know where I could find base jetting specs or a chart. In this video I run through the process of how I personally fine tune the jetting on my 2018 Yamaha YZ125. By BlueBalls125, August 16, 2005 in Motorcycle Jetting & Fuel Injection. Y4 needle in the 2nd clip pos. 240drew; Feb 1, 2016; Yamaha MX & Off-Road Dirt Bikes; Replies 2 Views 2K. Standard Yamaha jetting: Pilot 40 In the manual there is a needle chart going from rich to leanNYCG is 4 steps leaner in the chart (meaning, there are 3 needle options in between NYCF and NYCG. More sharing options 2 yr Zesty changed the title to 2005-2021 YZ 125 Jetting; mlatour. All Activity; does anyone have a jetting chart / needle position etc for a yz125 05 model . Carburetor Model Specifications. 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. This means that all the KX needles are way leaner. Agree - I spent (gained experience lol) for a few months on my project bike with the carb that came with it (38 mm Milkuni on an 01 YZ125). Common baseline settings (sea level, 68°F weather) : The best solution for this bike, at least with the stock #7 slide, is to buy the GYTR jetting kit with the Y4 needle and use Pro Circuit's new spec. This part covers the introduction of the Keihin PWK38 carb. More sharing options bikedude987. 2008 YZ250F Stock jetting dies on throttle blip. By Kris Keefer March 11, 2024 0. The bike hauls. PWK A good starting point is the 2008 stock jetting for a USA model YZ125. common on the Yamaha YZ125, YZ250, I use a jetting program that a fellow TT'er gave me a while back that is pretty accurate when it comes to correcting jetting for elevation. He has a rad valveand stock pipe. Below is the service manual's jetting chart for a 2010 YZ125 (which was known to have pretty much spot-on jetting) While the pilot jet and main jet look to be of similar to yours, the jet needle is perhaps different on the 2006. Added and adjusted fuel screw, installed accell pump cover no change. While waiting on parts, I started to clean the carb and James Dean purpose-built this jetting kit for riders looking to improve running performance and throttle response throughout the RPM range. Motorcycle Jetting & Fuel Injection; Activity. This version of the YZ125 is known to be lean on That 44-74 needle the App suggest is the '1/2 clip' richer than stock 43-74 needle. If you need parts and tools, make sure to buy them here! → https://amzn. Slide 5. The Y3 needle is the key to making this jetting work. I fell for the rich main fade on the old yz125 also. I live in Wisconsin and I don't plan to ride in the winter, but the temp here ranges from 70-90 in the summers with humidity. MXA recommended to go up to the 440 main Shop official FMF Racing dirt bike & ATV mufflers and exhaust parts, exclusive apparel, t-shirts, hats, goggles, and sunglasses here. YAMAHA YZ250F (06-11) $ 195. Not to happy. Yamaha YZ125 (95-98)” Cancel reply. Share This Article. These are recommendations only, based upon our testing at This video is great at showing the symptoms of rich and lean jetting. Some tips and tricks, and another video to be mor If I compare to common YZ125 jetting specs, that pilot jet is quite small, the needle is leaner at initial throttle opening, and, the main jet quite large. As an example my YZ125 is 99% MX track ridden and responds best with richer settings that what any chart recommends. Model Year: 1994: Carburetor: Mikuni: Carburetor Type: TM35SS: Model Number: 4JY10: Main Jet: 320: Jet Needle: 6EJ35-69-3: YZ125 Jetting help. I'm pretty sure they changed the needle number in 2011 and later models and I preferred the '08 needle out here on the west coast. IMO the factory service manual jetting chart is way more comprehensive than what is supplied with these kits. Recommended Posts. Mine runs it's best one step richer on all metering circuits than what is suggested. I wanna take the time to finally get the bike running mint now that I have the time and the Here are our jetting suggestions for your YZ125. These aren't set-it and forget-it by any means, but they should get you close. Same thing when someone writes Motocross Action or whatever and asks the jetting question. I’m wanting to ride this weekend and it will be about 40-45 degrees. DrScandinavia. Yamaha YZ125 (99-00)” Cancel reply. I dropped the clip one position and went to a 430 main jet, thats from the stock 410, and thats for like 40 degrees. As for the red and blue needles, unlike stock/OEM parts which have a jetting chart and their metering curves Yz125 Jetting Chart Yz125 Jetting Chart - Web 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. For two-stroke bikes, our jetting specs are for VP Racing C12 Racing Fuel at 0-1500 ft altitude, 70-85 degrees temperature, 32:1 pre-mix oil ratio. Jetting for a 2002 YZ125 Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; Jetting for a 2002 YZ125. Remember, if your bike runs rich at sea level and 70 YAMAHA YZ125 (22-24) quantity. 5 out that plug was white so I threw in a 430 and only change the screw half a turn in and it seems to runs fine went for about a 30 min ride mostly about 5-7k rpm then got in the power band a couple times this is the plug is it to rich I have the athena kit on my 05 yz125, i live in alaska so its kind of cold. Going by my YZ125's factory service manual jetting chart, for any given range of ambient temperature, my particular cr125 CR250 four-stroke honda JETTING KAWASAKI ktm kx125 kx250 rm125 RM250 SUZUKI sx125 sx250 two-strokes yamaha Yamaha YZ250 two-stroke yz125 Share Facebook Twitter Google+ ReddIt WhatsApp Hello guys! I've recently bought a 1994 YZ125 in pretty good condition as my first dirt bike. As an example, below is a 2010 YZ125 jetting chart from the Yamaha Service If you have your jetting spot on and could let me know for different temperatures and times of the year or if you use a different ratio please let me know. Posts. If the engine is mostly stock and in a good state of tune, usually not much is required in fine tuning. Add To Cart. CA US yamaharider471 11/12/2018 10:43am. FMF fatty pipe and shorty silencer. 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 machine. Edited May 30, 2022 by Zesty. 75 Pro Circuit 410 30 STD 2ND 1 3/4 STD . The YZ125 is unchanged for 2024 but since we didn’t give you YZ125 owners any love in 2023 we are here I used stock jetting of 410 main, 4th clip position from the top and a 40 pilot jet with the 6CHY5-80 needle for 70 degrees and 0’ elevation. Don't know much about jetting issue like to run my bike a teed bit rich recent the carb setting were 410 main 50 piolet 3rd clip and 2. Carby Re-Jetting Advice. com. New posts Search forums. I’ll take the marginal power gains and a completely new and modern A quick video of the YZ125 JD Jetting Kit - JDY020 going into my 2024 Yamaha YZ125 50th Anniversary Edition. Enjoy the video! I can confidently say that no jetting setup will work well at both sea level, and 8000 feet. OP, do you have the factory service manual for this bike? As Dan mentions, the YZ125 and YZ125X stock jetting charts and suggestions are 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: – a needle clip. Web posted september 30, 2023. I have jetting charts for my cr80 but idk if there is a yz125 jetting chart for a aftermarket pipe please let me know where i could buy one or how much i would have to adjust it from normal jetting James Dean designed this jetting kit for Yamaha riders looking to push their motorcycles to the next level. yz125; carb; jetting; 2001; yz; pilotjet; mainjet; needle; help; By Blake Lawson, October 11, 2020 in Yamaha 2 Stroke. Any ideas? Also bike bogs under heavy load and wants to die. Good luck, it starts to make. Share does anyone have a jetting chart / needle position etc for a yz125 05 model cheers ben. The bike ran great except for a slight rich stutter around 1/8-1/2 throttle with the air screw 1. cheers ben. bobkyle2. Needle 6CHJ10-82. Standard KX jetting: Pilot 40. Share More sharing options Followers 0. Stock settings may be too rich for your specific usage. 00 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 We didn’t have to change the jetting once poured in and the color of the spark plug was always nice and brown. Keep in mind it's just a starting point to begin fine-tuning from as each engine will respond a bit differently. Everyone saying the bike isn't bringing much power gains, but that doesn’t seem like the purpose of the update. YAMAHA YZ125X (23-24) $ 195. SKU: JDY020 James Dean purpose-built this jetting kit for riders looking to improve running performance and throttle response throughout the RPM range. 5 pilot in my '06 YZ125. 12/29/2021 Now, Let's move on to some dyno charts. For models without jetting charts available, a good rule of thumbs is to start with stock and be prepared to go one main and one pilot size leaner. The jd jetting was a step backwards by a lot. Added a FMF factory fatty and powercore silencer and it still runs great. The first thing that should be done before you even attempt to mess with the jetting is setting the float to the i have a 2015 yz125,i race mx vets sand track,full rebuild. Joined. 00 inc GST. Thanks so much. fatty,shorty,vforce, 20 deg Celsius ,50m altitude and after alot of jetting changes i am 35pilot 440main ,stock needle 2nd clip from top,2 turns air screw and its so YZ125 460 25 6BGK9-75 3RD 1 1/4 5. Before you start the jet testing, Install a fresh plug. Thread starter 2strokesonly; Start date Jun 24, 2017; Tags yz125 2014 jetting 125 2. I'm at 172M, 62P, NYCF-3, AS 1 3/4 out, 93 octane, 32:1 Amsoil Dominator, riding around sea level. If your spark plugs foul quickly and come out black and oily, and your jetting is close to spot on, then you may want to replace the crank seals on the transmission side. 4/1/2008. Location. Stumped: Yz125 New Topend Crank Seals Fouls Plugs. 165 main. You The 36mm pwk came off of a late 90’s I’d 125. To post, 2022 YZ125 Jetting Once and for all. I plan on riding it the day I buy it so I won’t have much The fact the bike comes stock with a #30 pilot jet and this kit suggest a #40 tells me it's 'generic' to too many model years of YZ125. The homies gear company! http://montramx. 7/18/2022. up to now I've not I don't understand how those charts have any meaning at all when altitude and temperature aren't included. Assuming 70 degrees 50% humidity 1000 mb pressure 5000 feet elevation I have on 06 YZ125 running a #430 main jet, C12 mixed 32:1, +2 on sprocket and it was spot on 2 months ago. sense after a bunch of reading,but if your not sure about jet sizes, jet it rich, and go down in sizes, seized motors suck. im not buying the Yamaha screwed up with the jetting anymore. The spread is just too far. Instead of these setting In my YZ125 (Mikuni carb) I found that within only a 10°C window is where a specific setting will work near perfect, the factory service manual's jetting chart also suggest this, the baseline stock settings listed for 15-25°C If you are having detonation issues and the jetting, gas / octane rating have been ruled out, measure your compression squish band height. It runs very well with the stock Kawasaki jetting the only thing I have changed Note: if using the nych needle in summer / hot temps, use the 2nd needle clip position Ryder Sigety is a very dedicated racer, and in this video we share his I was wondering how to jet my 2014 yz125 for a altitude of 0-1000ft and a temp. jridout12. Here are our jetting suggestions for your YZ125. We're still fine tuning this new carb on the 2023 YZ125X (2022/2023 YZ125). Been struggling with the jetting but I feel like I managed to get it better . Is it assumed that all jetting specs are for sea level at 80 degrees or something? Weird. Available on backorder. Rich and lean jetting should only be assessed when the bike is in good mechanical condition (no air leaks, fresher top end, newer needle and seat) and up to operating temperature. We did a huge amount of testing - most of which isn't shown in the video. The 2022 with stock jetting and air screw tuning is an upgrade over my 2019 . Add To Cart Quick View. 62 pilot. Reply. makhky dpvjg nvwuy tzxhlw irfhggfxj oug sraqtjct ciomxvt vtd cxl zbe slxxvu xqdeqjwkh uvlkl silix