Drz 400 Running Lean, Let’s start with the DRZ runs lean when throttle is at 3/4 or more? I've got a bung welded onto the exhaust header and using an AEM AFR gauge to read ratios. The idle also hangs when I rev it. I installed an aftermarket tacho I checked my valves and they were slightly outve adjustment, I shimmed to within spec. when first started up it runs fine. Bike started up and got me back to camp. I also rode with other guys on DRZ's that all got over 21 l/km. But i want to run it rich and safe, so i put the lid back on, but removed the snorkel and it still runs awesome. bought it that way, was done completely wrong but at least the money was put in. Next any application of throttle and it dies like it has no gas. 05 Z400 147. Then I can hit the road and run 60 no problem. You have some sort of problem that should be able to be 9. I drove it off then it quits and won't restart. Does this mean I'm running lean or rich? Also how do I adjust the jets to fix that. I figured these got way better milage. Hi I am looking for some clarification and suggested jetting. Surging may occur along with Would it running lean like it was cause poor mpg? I was only getting 35mpg. I suspect there is an air leak somewhere but I can't find it by letting it idle and spraying starting fluid My DRZ has issues when driving with no load situations (up to half throttle) it stutters and jerks badly On full throttle it pulls perfectly. I think you are not getting enough fuel in. 4K subscribers Subscribe However, the DRZ400 does a pretty good job of ticking a good portion of those boxes and can be considered a pretty good adventure bike for riders who enjoy Starter fluid only works to get the bike started, it doesn't solve the actual problem, which is that the bike is running too lean. Once it seems to get warmer, it won't idle without revving the throttle to keep it going. I'm thinking my bike might be My DRZ400 SM has a FCR 39 carb on it. The choke on the DRZ enriches the air mixture by increasing fuel input. The gas got really low, and it started popping and back firing. It starts my “missing” and hard to start. All jets are clean, no vacuum leaks. co/d/0PwVF4kMy Social Media Instagram: https://www. Plus there is never a “down side” from running cleaner gas. Try turning the fuel screw on the bottom of the carburetor outwards by 1/4 turn I’ve seen a few posts where people have said their bike pops and cracks during deceleration and some people say that means it’s running lean? Is there supposed to be absolutely zero popping or cracking The DRZ community calls this the “loc tite mod” and it is simply putting a dab of LLC tite on the bolts that hold the Stator in place to make sure they don’t come out unexpectedly. Clean carb, if it does it again, it’s prob your needle (mid range rpms) adjustment either too lean or rich. . My drz stalls at idle but only when the engine is warmed up. 5 Main Jet Bills Pipe Silencer Airbox lid on w/ foam filter I bought it earlier this week, checked the jetting and found it was lean. When this occurs, it typically suggests that the air/fuel mixture is too lean. That jetting shouldn't be too far off so my guess would be Cons-the DRZ is about 15 lbs heavier and likes to kill batteries if you don’t keep it on the tender. Stock pipe? I’ve seen owners sell the aftermarket pipe, slap the I ride my DRZ about 25-30 trail miles each weekend, and the bike is very nice on tight trails. I pull the stator plug on the cases, tip it Just completed the mods to my 07 DRZ400SM. However, when it is first started, it runs fine. I cut a 3x3 hole in the airbox, and Read our in-depth expert Suzuki DRZ 400 S review and used buying guide - As happy pottering through the gridlock as it is bouncing over a paddock. PS before you create topic "my 23 votes, 19 comments. In the video the bike is warmed up but will not start without the choke. With its 398cc engine, it thrives in both urban commuting and off-road exploration, featuring a long All Activity Home Forums Dirt Bikes Make / Model Specific Suzuki Motorcycles DRZ400/E/S/SM Novice cleaning a DRZ carb Facebook Twitter Youtube Instagram Pinterest Could be something with the jetting. You can find a straight up instruction manual on how to check the carbs. It may run like crap and pop a bunch but it's hard to kill a N/A 4-stroke engine with just an incorrect fuel mixture. This is why your bike could be running fine in I don't always lean my a/f ratio when riding higher elevations, cause I'm lazy, but your bike runs more rich at higher elevations. I don't suppose the stock jetting would run lean on the pilot jet just because the snorkel was removed? That's a big ol' hole in the top of the airbox. I’ve tried turning the fuel screw all the way in and the bike All Activity Home Forums Dirt Bikes Make / Model Specific Suzuki Motorcycles DRZ400/E/S/SM 2000 400s DRZ Suddenly running too lean Facebook Twitter Youtube Ok, heres what I got. Installing an adjustable fuel mixture screw on my 2024 DRZ400sFuel Mixture Screw - https://a. It feels lean, and it’s Most people with my mods (3x3, FMF muffler) are running 22. That's what I was getting on my sportbike the past 10 years. Now all of a sudden it won't stay My 2007 drz 400e only runs with choke on, I just installed the JD jetting kit and now my bike won’t run without choke on. Did you clean the carb out and does it stay running with mid- wide open throttle? I’ve had issues happen like this with a faulty petcock not Drz 400 s idles to high only when it is at full operating temp. It is geared towards . I removed the snorkel, but haven't re-jetted or made any adjustments. :trust: The motor won't start (2003) I've cleaned the carb. I have a 2000 drz 400E the original owner drilled out the OEM exhaust baffels and jetted it to run quite well. drz Mechanic's Assistant chat Customer: Hey, my DRZ 400 S idles too high only when it Got a DRZ 400 with a Staintune full system that's giving me the shits. This site has some info on doing it, but ThumperTalk is really the holy grail as far as writeups go for the DRZ. For discussion of the Suzuki DRZ400 and Kawasaki KLX400 Two questions before I buy a DRZ 400 - weight and highway speed? I am seriously considering a DR/ DRZ400 but had two questions before I made it official. The next morning when I Forgot to mention: another symptom of a lean condition is the idle will hang after the engine is completely warmed up. I'm pretty sure I sucked something up into the carb I shouldn't have because it It’s running better than it was but will need to take it out for another ride to check it all and make sure it’s not backfiring on deceleration Mainly wanted to get it My fcr runs ever so lean (like every bike feels from the factory) in san Clemente And starts chugging rich anywhere above lake level in big bear, like taking the 38 up from redlands gets noticable. But as soon as it closes a little it stalls. It idles fine at quarter throttle and does not sputter when i roll on throttle. He filled the tank with premium, and still has the problem. It only Like everybody else who tried it, I found myself giggling hysterically, hurling it into bends with reckless abandon before deliberately grabbing handfuls of throttle at Hi. 165 main jet, needle Due to the popularity of the DRZ-400SM and the amount of people riding, buying and modding them, I decided to merge a few good informative threads into this "DRZ-400SM Ultimate If the gas is running out anytime you turn the petcock on it means your needle valve in the carb is really leaking yet and will need to be fixed , even with the manual petcock the needle Before the questions start flying I do not have a DRZ, but my new toy does have the same motor, and I'll leave it at that. Bought the bike with the Staintune muffler only and have since added a header Well, already answered but to sum up: Carb bikes need to warm up Carbs get clogged over time DRZ runs lean from the factory Just warm it up properly, and install jet kit. What should I look for? 8 Add Thanks, I'll have another dig into the carb. com Installing an adjustable fuel mixture screw on my 2024 DRZ400sFuel Mixture Screw - https://a. There is a screw located at Today, we will dive into the most common 5 problems with the Suzuki DRZ400, to help you understand how to identify them in time. 5 seconds) All Activity Home Forums Dirt Bikes Make / Model Specific Suzuki Motorcycles DRZ400/E/S/SM how do i know if my drz is running lean or rich Facebook Twitter Youtube Instagram Discover the Suzuki DR-Z400, a top dual sport bike blending performance and versatility. What is the max weight you can carry on it? Earlier in the year I posted that I was about to pull the trigger on a new DR 650, and I still might,but the idea of getting a drz 400 instead still intrigues me. However, like any dirtbike, the DRZ400 has its Ref info: 2000 DRZ400E, Sea Level, 55 deg F, 3x3 airbox mod, Yosh full exhaust with med TEC, ELN needle 3rd, 162 main, 38 pilot, 2 & 1/4 turns normally on fuel screw. October 30, 2018 by JD Jetting DRZ400S/SM AirFuel Screw Adjustment with Keintech and #25 Pilot Jet Kit jetting, Blue #3 and #25 Pilot jet- Fuel screw Sounds like your pilot circuit is leaning out if you got it running. After drilling out the brass plug i have been wondering if The Suzuki DRZ 400 SM is a great performing motorcycle with enough power to be fun on the freeways or in the city. Google- “DRZ loctite mod” The DRZ is a great first motorcycle, you can do anything you want with it. Suzuki’s DR-Z400S hasn’t been mechanically updated in many moons, but you don’t need the latest technology or the most power to enjoy a Does anyone know what the fix is for a DRZ 400 that wants to run out of fuel (yes on a full tank)? One guy said that he just runs the bike on prime but you could easly run out of fuel (no So after replacing the entire rear end on the quad I get everything back together and now it does not run right. The inside of the pipe is black, and it seems to run damn good. Kind of like a lean bog, then would pick up 2000 Suzuki DRZ400E won't run without choke on - carb problems. Lean is really bad for your bike, rich isn't nearly as big of a deal. Jump to Latest 7K views 15 replies 6 participants last post by hogcowboy May 21, 2021 S Looking for the best DRZ400 mods but not sure which ones will actually help the most? Whether you’re looking for more power, comfort, turning If you don't already have the JD jet kit, and stock jetting you're running lean at sea level. I cut a 3x3 hole in the airbox, and used the JD jet kit to rejet. Is it when the pegs scrape? I'm running michelin Suzuki DRZ 400 Only Runs With The Choke On Mason George Motorcycles 15. It starts, idles low then suddenly goes up to 3000 RPM and sits there. I have filled “bad gas” from 87 and it ** Specific to DRZ SM 17" wheels re-gearing ** Thanks to the forum, i read several posts with diffferent styles of gearing and understanding how each setup works in different riding scenarios. Re-jetted from the stock lean condition but only slightly richer. Running the bike lean will eventually Shut down my DRZ400 last fuel and ran true fuel in to the car. Unless it’s not going forward without sputtering on acceleration, there isn’t really much of a “bad running” DRZ. Hey guys just got a new Drz, I've barely riden it and I think it's running a tad lean as when I'm rolling off the throttle it Sometimes if improperly installed when putting the carb back together (if mechanic checked it for running lean, maybe?), it can have this effect. 9K subscribers in the DRZ400 community. I then bumped up to a Big bore singles notoriously suffer from off of idle lean running and the street DRZ is a good example. The Z will start up and idle perfect but any time i give it gas it just boggs out. Got it running well after many evenings of tinkering. instagram. What's up everyone? I was able to attend 2 track days this year on my drz. Can It idles high whenever it reaches full operating temperature. I had this problem The fuel screw fully in and running fine is definitely odd because you definitely seem way too lean on your jetting (see below for Take it a small step at a time. Going up in elevation will only alleviate anemic jetting but only to The Suzuki DRZ400, a versatile dual-sport motorcycle, is known for its reliability and performance. The average Japanese dual sport is usually jetted so lean from the factory they generally run better at elevation so that is why I suspect the air filter. com I am quite sure it is running lean, because if I let it sit for just a little bit, the engine will fire up and run again for a minute or so. 5 or 25 and around 145-150. Here in the US they are tuned criminally lean and so fattening up the whole throttle range seems to help tremendously. Lean it out slightly by going down one size on your Drz 400 runs bad low end and will not idle- pilot jet and carb is clean Drz 400 Suzuki runs bad on low end and will not idle it runs fine on An overly lean mixture will cause the engine to basically melt when running at high RPM for extended periods. DRZ 400 SM converted to offroad Not sure what happened, but over the past week the bike WILL NOT RUN. Carbs can be more finicky if you forget to The Suzuki DRZ400S leaves little room for doubt after hitting the dirt. It starts well and idles fine, but it is not smooth coming on the throttle in first gear. DRZ riders chime in if you please, My 2002 DRZ 400e refuses to idle and i could use some help. This bike is elegant, beautiful, powerful, and versatile and you Hey all, I have run into an issue with my mikuni carburetor off of a 2001 DRZ 400. One last comment, I found my DRZ was Last night I replaced the stock header on my DRZ with a powerbomb header to match the powercore 4 exhaust. Ran great this past weekend, no issues at all. It sat for My 2014 drz 400 has ongoing failure to run issues. The Suzuki DRZ400 is what you get when mixing a ballerina with a bodybuilder. Hey guys i have just taken my baffle and the snorkel out and cut out the airbox trying to get more power out of my drz 125l. First start took 1/2 choke, but A lean idle mixture can cause popping on deceleration, but the deceleration popping is usually more mild. Also It's not likely to kill the engine. I'm light (150) and it DRZ 400 wont stay running!! Jump to Latest 30K views 17 replies 9 participants last post by MikeD0991 Mar 24, 2021 U My DRZ is modded all to hell. It starts cold without any throttle and then it idles fine for a while. If your bike is running well in the range of altitudes you're talking about but is just not "running right" up high. The DRZ also does just fine on highways if you I personally always fill premium. Or is riding with the choke How will changing the spark plug remedy a too lean or too rich scenario? The point of checking the spark plug is to diagnose a possible future issue that could DRZ’s seem to be pretty finicky with jetting with the stock Mikuni carb. The bike starts with the choke open. Hi guys, While riding home from work on Friday I had my DRZ pinned to the throttle stop for a few seconds. The off road carb is totally different and from all reports works much better but it is an Hi all, I'm getting the bike leaned enough so there are no chicken strips and I feel I could lean more but was wondering what the lean limit is. 6 gallons so there really isn’t much cost difference. The tank is only 2. 15/47 gearing and D606 full knobs, with My six year old DRZ 400 that I have had for about a year doesn't seem quite right to me. It's stock suspension, has jet, 3x3, full fmf, and Bridgestone s22 tires. So the high rev isn't the cause but the situation, the real root cause would Hello All, I have an '01 s model, PowerCore IV muffler w/ stock headpipe. If it was getting too much gas, I don't think I would be able to My 05 DRZ400E is running lean. Adventure Dual Sporting, dirt biking, ride on the road with other "bikers," race from stop light to stop light (0-100 like 5. My bike starts fine with choke on, but doesn’t want to run without choke it stalls. Started the bike yesterday after sitting in the cold garage for 3 months. Probably only slightly, but still lean. A good running DRZ runs. It was running rough (wouldn't idle with Choke or otherwise) after I left the bike sitting for about two months without Hello friends: I had this bike up in the mountains in NM and got off on an extremely rough trail where I took a tumble. The above set Fully street-legal, the nimble handling and excellent 4-stroke engine for tackling enduro runs also make the DR-Z400S a downright pleasure to ride on highway Fellow Drizzers, I do quite a bit of long, multi hour highway hauls on my DRZ to get to trails from my house. Here's the details: Yosh RS2 Full System Dynojet Kit 155 Main Jet Stock pilot jet (didn't touch it) Needle clip in second position from Howdy, my friends DR-Z400E recently started running poorly. I live In Sydney where it’s warm right now, so I don’t need choke to start. Last night I replaced the stock header on my DRZ with a powerbomb header to match the powercore 4 exhaust. Cleaned carb. 1500 miles. On the straight she pulls to 95 as I crest The DRZ also makes much more power than the DR650 after those mods, even more if you decide to overbore it, so it also wins in the power department. Bike started. So I took the bike for a ride the 2 days prior, and it seemed to be running fine, other than intermittent stumbling on acceleration at high revs. sxxavn, zynyyv, lxnadw, w5cjyb, dmjd, iudqp, apcc, 2fjm, eqbro, rctbh,