Xr650l stock jet size. Going to finish up this weekend with snorkel removal, daves mods, uni filter, and XR's only exhaust with stock header. Whether you’re rolling with a stock bike or you’ve made some modifications, our Jet Kit will optimize your air/fuel ratio to eliminate Dynajet comes with a needle that is engineered and dyno tested to work best in your stock carb that was incorporated with jet sizes,a needle and slide/spring to meet emissions. I am confused as heck after reviewing numerous topics in this forum. Shop now & Save big! Question, I de-snorkled my airbox and put a supertrapp slip on exhaust on this weekend. (170, 172, 175, 178, 180, etc. Start with the standard Daves mod settings then drop the main down one size. Need an adapter to make the carb work with the stock airbox. Buy some nice precise drill bits to suit your range of diameter (150 jet = 1. 666 – XR650L; 3. i have a k&n filter with all the other uncorked stuff. Dyno Jet told me to get the 175 and 180 main jets (the next 2 bigger sizes that don’t come with the stage 1 Jun 22, 2025 · Can anyone help with the size of the stock jets and the size of jets needed after doing all the mods? Honda XR650L owners discuss jet sizes for modifications at different elevations HONDA XR650L 1992-2025 Instructions for ordering: check jet dimensions. You cant use the stock XR650L throttle cables with the FCR, you can shorten them yourself and make them work or just get the throttle assembly from the CRF. 1- Main Jet Size 158. Bike's brand-new, previous owner didn't change the jetting, everything else is stock. 250 – XR650L; 1. 647 – XR650L; 2. I tuned mine for sea level, now live at 2700 feet, and frequently ride it to 8000 feet and higher. HELP!. I recently purchased a 2012 XR650L that is all stock. Forsale Lander Get this domain Own it today for $9,995, or select Lease to Own. What do you guys recommend? We also include new 3" longer than stock throttle cables, a remote mounted choke knob, complete instructions along with a wide range of main jets and pilot jets for fine tuning or to accommodate bikes with extensive modifications. I removed the airbox snorkel, installed a K&N filter, and put on a Supertrapp IDS2 Quiet with 10 disks. The smog stuff is blocked off. com, world leader in Jet Kits. These Jet Kits take the guesswork out of tuning your bike. The XR650L with the stock carb tolerates a rich condition well and seems to have a more peppy throttle response when a bit rich, but the stock lean condition causes noticeable stumbling and loss of power. I'll take out the snorkel if it's not out already. I am in the Denver area at 5300 ft. Desmogged today and it quieted down the decel popping. Any opinions on THE BEST exhaust option. Products (1) Jet Kit Fits your Honda XR650L 2023 Jet Kit for 1992-2026 Honda XR650L SKU# 1148 $102. Strong top end, good off idle response. 155-. Enjoying the 2013 XR650L put 700 miles on her so far. 99 $114. This is only jetting suggestions for your application. Do not buy it! It will not work. 125 – XR650R III 1. Beats paying dollars for jets AND you can do this: Use a main jet two sizes larger when using a larger diameter aftermarket header & exhaust canister NOTE: When Gary mentions "Go one size larger", remember that Keihin jets run in sizes of 0, 2, 5, and 8. He claims it’s a much bigger jet than a . 1- Pilot Jet Size 52. I'm running lean obviously with stock jetting. Horizons Unlimited - The HUBB > Technical, Bike forums > Honda Tech XR650L Jetting question User Name Honda XR650L Performance Carburetor Jet Kit Custom Designed to your Exact Specifications at time of order. 5mm diaphragm-type CV Keihin carburetor? I found a set of Mains in the TT catalog, but not a specific listing for the pilot (slow) jet for this model, I am carburatorally challanged, so ke i installed a hotcam stage one on my xr650l and the idle is pretty rough. - 2005 XR650L - Snorkel Removed - UNI Filter Installed Honda XR650 I 2. Shop RevZilla for your Dynojet Stage 1 Jet Kit Honda XR650L 1993-2025 today! Free Shipping, Lowest Price Guaranteed & Top of the Line Expert Service. Looks like it has a stock Here is why: The stock main jet is a 152 Keihin, which is a 140 dynojet. 158, but he’s not willing to give specifics since it cost him You can either buy more jets or start drilling a small size. but i get quite a bit of popping on decel. Honda’s XR650L is one of the least expensive big-bore single-cylinder dual sport motorcycles on the market at $6,999. Oh! and 2 stickers LOL. Problem is the 158 pilot 58 main was way too rich, would stumble when you opened it up at anything other then high RPM. These are recommendations only, based upon testing at sea-level atmospheric pressure, I went from a size 165 main jet to a 145 and straight back to hauling ass! Took about four hours tops to remove and disassemble the carb, change the jet and then put it all back together and ride again. But Google " Dave's mods Honda XR650L" for a start, might be all you need for a stock bike? FITS: XR650L (All Yrs) / Keihin Carburetor OEM MODEL: Keihin Carb / Main 99101-393 / Pilot N424-26 Jets are not sold in pairs, but individually Jet / Jets / Jetting May 30, 2025 · Take your performance to new heights with a Jet Kit for your motorcycle. Automatically and instantly get a near perfect result for the correct main and pilot jets based on your bike modifications, aftermarket exhausts, pod filters, altitude, ambient temperature etc. I guess I'll re-summarize. However, there’s a guy on YouTube who has this exact bike (2022 XR650L) with the same exhaust, and he had it Dyno’d and jetted. install a 55 pilot if it hasn`t already got one. I ordered the FMF slip-on with the rest of the upgrades from Baja Designs. 5mm diaphragm-type CV carb. The main jet is 128 and the pilot is still the stock 35 and three turns out on the air/fuel mixture screw. Is there anything more to it other than simply ordering a bigger jet and screwing it in? My bike is running lean overall, and my top end is crap, not going much above 70 with stock gearing even at full throttle twist. 840 – XR650L; 1. I cleaned the carb and she's spotless, and I'm running 158/55 and dave's carb mod which is recommended for stock exhaust. (you do not mention what the pilot size is now). I am running de-smogged, no snorkel, UNI filter, and a FMF Q4 pipe and my jetting has *mostly* stabilized where it will start up and idle nice and smooth with a 160 dynojet main (178 keihin). i can hear it pop a little at idle. I have a 2017 XR650L that I am putting a Full (inclusive of header) Big Gun EVO R system on. (2) With a dyno jet kit installed you need to install a pilot jet as the kit doesn`t come with one,they actually tell you to not change the pilot which is BS. Try here: identify that jet. Drill bits come in point-one increments so you can produce 120, 130, 140, . Sorry for the long answer I would leave your needle in it's stock position replace your main jet down two sizes since that is recommended for altitude adjustment anyways. Right now it has a 135 main jet, and 25 pilot jet, needle clip is in the middle #3 notch. Your baseline jetting will be the final jet sizes you end up with that gives you the very best performance for a given riding environment. Our year, make, and model fitment guides list jets for popular factory and aftermarket carbs, but due to numerous reasons there is not a way to make them 100% accurate The #50 pilot jet is fine especially at higher altitudes. the bike seems to take forever to warm up and it seems if i shut it off even for 10 minutes I taped off 1/3 of my air filter, which is worth 4 to 5 points in jet size for the DJ kit, and vroom up to 7000 and then some. Hey guys, do you have a link to buy a jet kit for a 2017 XRL?, I have seen several on ebay, but most of them say it fits some years and not others, so I'm confused. jet sizes. While the following jetting charts should be fairly accurate, please use them as a starting point to work from to find your specific baseline jetting. Is there a starting setting fo If you are planning on re-jetting your carburetor or doing the Dave's mod on your Honda XR650L, watch this video on my experience doing this as an amateur (noob!) mechanic. I bought an XR650L with what looks like a Baja Designs or Thumper Racing exhaust insert. Daves Mod XR650L Carb Mods by Dave Closs and Brian Jackson, minor revisions by Jets R Us These mods help correct the stock lean condition. It combines the RFVC engine from the proven NX650 Dominator dual sport with the lighter, off-road capable XR600R chassis, the latter of which is not road legal in the US. It looks like a K&N filter (do they come stock with a pleated filter?). Hey guys & gals, what's your opinion? Remember that the stock jets for a XR650L are 50/152. Anyone have a similar setup ? Looking for any jetting info. List of jetting results for streetbikes, dirtbikes atv. Hello All, Question about re-jetting a 2008 Honda xr650L after performing some exhaust modifications. The bike is from the east coast and I am almost positiv For the most part, with the stock Keihin CV carburetor that comes on the XR650L, altitude makes very little difference. I read on one site that there was fit problems with th The needle is what ever comes in them stock with the clip in the middle and I am not sure what the jetting is at this point. If you have a 158 keihin that's a 144 dynojet main. Right now it backfires a little when downshifting. Jeff Allen A carbureted air-cooled New OEM cylinder, 11:1 piston, new OEM head/valves/springs, smog block off, UNI air filter with air box mods and Dave's mod jet kit. Jet kits are easy to install and do not require drilling the needle slides. Honda XR650L The XR650L is a dual-sport motorcycle manufactured by Honda, part of the Honda XR series. If you're running something similar what jets are you running? I tried both the 35 and 38 that came with the bike and it falls flat on it's face on the pilot jet but runs normal once the throttle is open enough to be on the main jet. A great starting point or baseline. Mar 5, 2025 · Hello, I have a 2023 XR650L. 115 – XR650R Main Jet Size: #175 Pilot Jet Size: #65 Pilot Screw Setting: 1. I'm in the process of replacing my stock exhaust with the following aftermarket upgrades: 1. Any clues? Did a search, too much info. I have changed it so many times after each mod trying to get it right. what am I looking/feeling/listening for when I make adjustments to the air mixture screw. Is there a rule of thump for jetting? Like- slip on pipe = go up 1 jetting size Open airbox = go up 1 more jet size ?? this how it works basically? the local shop recomends I go up 2 jet sizes but leave my pil hello just wondering if anyone has any thoughts on what jets to run on my 2008 xr650l? The emmision junk is removed and i have i super trap exhaust and i am running stock jets and it seems a little lean. I know dave's mods suggests the 55/158 jetting but has anyone else fo Motorcycle Carburetor Jet Size Calculator. 5 mm metric drill). The bike is de-smogged as well, I suppose I should have mentioned that. Chris So already I know this thing is going to need more fuel mixed than stock, due to the air flow. My Dyno Jet kit just came in the mail. im running a 55 and 160. Its MSRP hasn’t increased in five years. The stock lean condition is real. Rejetted to 55/158. These filters are washable and reusable, making them cost-effective in the long run. I have done the smog pump delete, K&N air filter, removed the air box snorkel, and installed a FMF Powercore muffler. Add Power and Performance. The following information is specific to the XR650R. Anyone have a good source to pick up a small assortment of Keihin main and pilot jets for a stock XR650L, 42. 083 – XR650R II 1. The mods and exhaust are planned changes, that I'm waiting on until I can get the jetting sorted out in advance. The Dyno kit came with a different size spring a 55 pilot jet ( I believe the stock is 50) and both 160 and 165 main jets, needle,needle clip and clip washer and a certificate for a free dyno-test at a local shop in your area. So I put the 170 jet in there and bike has full rpm range. XR650L Jet Kit BASIC. Only reaches abo So the new to me XRL has a minor jetting issue. Bike runs better, but seems to not be reaching its peak. Adjusting a carb is a lost art and in my experience most pros just focus on the main jet, because dialing in a carb takes many hours. Jetting question: I'm currently running stock exhaust (no plan to change it), desnorkeled, and UNI foam filter. Upgrading to a foam or cotton air filter, such as those offered by Uni Filter and Twin Air, ensures superior filtration while maintaining optimal airflow. 333 – XR650R V 0. 000 – XR650L; 1. The jetting of my bike (55 pilot & 158 main jet) is perfect for the low elevations of Ohio and we'll only be in Colorado high country for 10 days. What I would like to know is. 666 – XR650R IV 1. in altitude and will be doing most of my riding between 5000-7000 ft in elevation. No Tech Support is Included. . My first question is, do you recommend wrapping the header and if so, can you provide some options? second, what jetting should I run? Just bought a 97 XR650L 14k miles,hotcam, LA Sleeve resleeved for 680cc,DG pipe,unifilter, altitude 1000ft. Main Jetting with BigGun Exhaust? I’ve contacted BigGun, and was told . Bike has stock jetting 50/152. 43 In stock The XR650L’s stock air filter may not provide adequate filtration in dusty or dirty riding conditions. Bud just bought an '03 XR650L with a big gun race exhaust, sucker backfires like a pig in heat. when i twist the throttle hard its not much bog. ) A 170 + 2 main jet sizes should equal a 175 if that makes any sense. Starts and idles fine hot and cold. Increase power and improve performance throughout the entire RPM range, while improving throttle response and smoothness. It was released in 1992 as a 1993 model. If the jet in the carb does not dimensionally measure like ours, then it is not correct. Nov 5, 2018 · As for the jetting,all signs point to that it was done professionally so I'll leave it at that for a while. Stock size is for motorcycles with stock engine and with stock air intake and stock exhaust system . Keep your stock baffle/spark arrestor and the 2 screws in your tool bag in case you suddenly need a spark arrestor. Shop online Jet Kit for 1992-1995 Honda XR650L @ Dynojet. It takes about 3 minutes to covert back to stock in a pinch with the bike's tool kit. NOS makes one that you can use. Thanks I'm running stock exhaust, K&N filter, and run a 55 pilot and 158 main (both keihin jets from Baja Designs), and this setup is rich enough to run with the baffle out. 158 main jet is recommended. Power increase and throttle response will be better. Though intended for 1993-2004 Honda XR650L models, these carburetor mods may work on other model bikes that use the Keihin 42. and fmf meg Hey 650L Riders! Am in the process of doing the air-filter, smog-removal, jetting-kit & exhaust upgrade to my 2002 XR650L. So what would be the worst thing (s) that could happen if I leave my XR650L (with mods listed above) and keep the current jetting while riding between 5000' and 12,000' in Colorado?? The carburetor is stock aside from the previous owners re-jetting. So I went down to 155 pilot/55 main and remo This allows you to run the stock XR650L choke lever. 75 turns out Starter Jet Size: #68 Float Height Level: 16mm Carburetor Fuel Level can the main jet be swapped without pulling the tank/fairings/blah blah tear the thing apart? just got a 2007 XR650L has an FMF pipe, and sounds like Did the jets 55/158, drilled slider, shimmed needle, air mixture screw out 2 1/4 turns, uni filter, snorkel yanked, grinded down exhaust welds. The stock carb is incredibly adaptable to elevation, according to several people on here you probably won’t have to change much. 0pon, lbhs0, w07my, mccq, i7zso, vlxuk, o2ehb, lrjhmc, 5gug, gnjib,