xr650l carburetor adjustment
Stage 1 tuning is just rightand plenty! The top dog of Hondas old XR off-road lineup for 93, the XR650L combined the tried and true mechanicals of the XR600R with a more powerful 644 cc engine from the NX650 Dominator. Web9K views 3 years ago Cheap remote Honda XR650L Air/Mixture screw mod! Tried to start it again, but it was flooded. I changed jets about 50 times (realistically20) and never got it to run as good as the CV does at road speeds. "Others" cannot read 'smaps_rollup' file with -r--r--r-- permission under /proc/PID/. The "story" does not end here. We take care of everything. 2.float height options (I have no idea)? I've not installed a header, though your Big Gun would be my choice. Stock is #152 and you may need #150. The idle may beunstable with the engine cold and choke off. An honest and forthrightprevious owner could not start the engine,andgiven the mileage, we agreed that the problem was stalewinter (ethanol)fuelwhich had eaten up the plastic tank screen! "will save you a fortune!" What plug have you seen work best in this bike over the years? The downside of running too rich is that the excess fuel will wash lubricant from the cylinder wall and cause premature pistonring and cylinder wall wear. From a 175 to a 190 main jet on the XR650R Keihin OE carburetor would not makea lot ofdifference until the throttle is rolled open. Stock is #152 and you may need #150. Hop on the classifieds anywhere, and youre sure to find several XRs for $4,000 or less, ready for a new set of rubber, and a new lease on life. Submit your amazing photos of your trip and win fabulous prizes! : If you ever want to plan a ride out in the desert, I'd be happy to coordinate. As long as the plug burns clean and I'm not coking up the piston or fuel-washing the cylinder, the fuel mix is okay with me. Theengineis lean, and I can feel it wanting slightly more fuel, which I provide with throttle instead of the choke. Both ends feature preload and compression adjustment, and are good for 11 inches of travel (thats 2 inches more than the Africa Twin and just an inch shy of the 450RL). I compensate for the slightly richer looking spark plug and tailpipe readingswith a Pulstar spark plug, not a hotter range but a zappier spark with longer duration. Sorry for the long answer This section is about staying healthy, happy and secure on your motorcycle adventure. Iupgraded my press with a 20-tonair-over-hydraulic jack (https://www.harborfreight.com/20-ton-air-hydraulic-bottle-jack-69593.html)that offers relatively slow and controlled application of force. WebThis is a basic tutorial on how to remove the carb whether it be for cleaning or doing a rejet / Dave's Mod. If this is the O-ring you describe, it comes in the $20 carburetor rebuilding kit from Honda. Hello all, I have just broken the 8000km mark, on my hopefully RTW trip aboard my Honda XR650L. Shock. Remove the stock muffler tip and replace it with part number 18317-mbn-640. A 170 or 172 will likely work well at your elevation. Mine doesn't have it, the previous owner cut off the tab on the needle instead of the float bowl like you're supposed to. I probably rolled downhill a quarter of a mile before I could finally bump start the thing. Honda ATV, Scooter & Motorcycle Repair Manuals. Hi, PhilFloat level is always important. Checking the spark plug after running the engine at various (sustained) throttle settings is helpful. All three had their gas turned to tar. I'm using the following service manual link. My idle through roll-on suggests that the 3rd clip position. Pleased to assist, Arnaldo. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Unlikemany owners who want to "load up" the engine with fuel, I'm conservative in both my choking and priming chores. WebXR650L | Finally Fixing my Carburetor - YouTube 0:00 / 14:37 XR650L | Finally Fixing my Carburetor 41,336 views Aug 13, 2017 350 Dislike Friday'sThe Bomb 11.3K subscribers Rolling past 1/4 throttleinvolves the needle height setting and gradually becomes a main jet sizeconcern as the throttle gets wider and the slide with needle rises. Our youngest son bought the bike over the phone from a San Diego County owner several years ago. Worth noting, I stayed with the stock air filter box, air filter and flame trap. Here, for those interested, is what the 3rd clip position looks like courtesy of U.K. XR650R enthusiasts: http://www.xr650r.co.uk/service/carb/17.jpg. I wanted to ask Moses about how the Stage 1 cam preforms, but I don't know if he is familiar with a bike that has not been modified to compare. Check the XR650R models covered. It will even return 40 to 50 mpg if treated right. The magazine recently purchased a 2000 Honda XR650R motorcycle with less than 1000 original miles on the bike. Note: If you use the longer style pilot/slow jet, you will need to clearance the baffle to accommodate it. Hi, ArnaldoNot sure whether your local fuel contains ethanol. First or second kick as usual. Some of theseitems carry over to the "A" models as well. If I pay attention, it sounds like farm equipment, and makes me wonder. You need to be a member in order to leave a comment. Take the rubber boot off the airbox. I made the comment above before seeing your answer. I ordered the needles and brushes, so I will disarm and clean the carb. Objectively, a vintage XR200R, XR250R or XR350R makes a bit better tight and twisty bike for single track trailing. Exhaust modifications help further, the stockOE muffler's exit flow and end capare ridiculously small for a 650 thumper! After my rebuild, the bike started right away and idled just fine, but the next day when I took it out for a shake-down run, it started to run poorly and refused to idle - almost as if it was running out of gas. Iknew the Johnny Rivers version from my high school days,the soundtrack in the moviewas Al Wilson'stake.). Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. Ive searched the Internet far and wide for answers, and it seems like youre very knowledgeable on this bike. Because the air pressure being comparatively low at high altitudes, it might cause the above mentioned problems. Theres a 155 main 50 pilot and the needle is on the second clip. The video shares my riding venues and why I selected this spark plug. That is not me. Critics gripe about the Kehin carb and five-speed transmission, but updating these features would probably spell the end of the engines EPA and CARB compliance, and the model all together. You can access and remove the main jet by simply unscrewing the drain plug at the bottom of the float bowl and accessing the jet with an appropriate 1/4" drive metric socket. I am having trouble finding a good guide on the topic so far. 
Being colder, I would not use the"8E" while you're experimenting with fuel mixtures. Cam chain and sprocketswereworn for typical wear and tear.. needle = 53E on the second to the bottom position. We understand this from having pushrod Beezers. The end result is not super beautiful and I'm tempted to take a grinder to some of the rough spots, but it's good enough. Which direction increases air in the mixture and which direction increases fuel? Which deserts do you ride? In a nutshell, I am thrilled with my engine's performance, very stable idle and immediate, massive torque from throttle tip-in to redline. High altitude adjusment for carb 4stroke. Use the factory parts schematic to identify your carburetor parts. I live in Puerto Rico, and use my bike everyday commuting to my job. The bike is unique and has its own story Get your Horizons Unlimited business card! When I get home, I let it idle for a minute or so, and turn it off. He adjusts for both altitude and ambient temperature. "Great minds?" The Pulstar spark plughelps offset short-term altitude changes without the need to alter jetting For your testing, since you're at sea level and we want a consistent baseline, I suggest the NGK BKR7E-11. The EPA regulated(non-California)cycle already had the open, round intake manifold. (Schematic can be found in a service/shop manual or online from a Honda parts sources.) This applies in particular to pullers and press tools. Then when you're ready to start the hot bike, turn the fuel back on as you're hitting the starter button. As far as jetting is concerned, I may have mentioned that I ordered a Moose Racing repair kit off a French website, hoping it would have the correct jets in it. I actually like this Al Wilson cut better, theres also a Comment below by someone who heard this song in Blood Ties and got a rekindle like I did: https://www.youtube.com/watch?v=hi02YH039tg. Touch-and-go here! MCN UK. If for nothing else than piece of mind. The steelin the muffler should be easy to gas weld if you do not have a MIG or stick welder. These mods help correct the stock lean condition.Power increase and throttle response will be better. Two things affect idle speed: 1) available air, which is normally available only via the slide bore and 2) available fuel. You will love the performance and the instructions are easy and only 58 at Revzilla. 
the instructions show it simply hooked direct to the batteries, but i am concerned parasitic draw may pull down those batteries. plus other racing nuances. WebXR650L Carburetor Upgrade Kit- Complete Keihin FCR MX 41mm Assembly 1996-2023 Does this product fit your bike? This all sounds complicated, but it takes about 3 hours to change main jet at this bike for an unexperienced mechanic. An air leak will destabilize theair mixture and cause irregular idle and poor starting. We can talk about this when you get the bike on the road. I believe this is way too much fuel flow. Honda XR650 customs | Images courtesy of Honda. I'm 99% sure that it's the tack welds of an internal pipe that have failed. The Moose kit has raised my brow as to the 145RD jet in mine. Compression ratio will remain the stock 10:1 with the new upgrade piston, enough squeeze for higheraltitudes andthe limit forkick starting and long pistonring life! I have very little experience working on bikes but I think I have narrowed it down to a few things. Visit this link for instructions how to enable JavaScript in your web browser. It's super clean; I just figured the rolling noise was inherent (the piston is like a Folgers can for God's sake). And crossing borders, war zones or oceans! DavidI like your can rattle metaphor! "This site is the BIBLE for international bike travelers." Heres a year later (1968) and Al Wilson pressing the same song on a 45-rpm disk at the UK. (A North America OEM corked XR650R engine, and especially a California "AC" type,would be a whole different tune.) There is also commentary about the standard pilot jets versus the"S" pilot jets. (I'm not clear about the elevation where you run the bike.) 
it REALLY makes you sound just ignorant to talk about "alloy" as always ALUMINUMTHINK man! 175 main, 68s slow and the 3E needle. They are Japanese Phillips head and vulnerable to rounding if not careful, but most of us who have owned Japanese motorcycles have been there and own a hand impact driver for that purpose. The muffler canister is stock. Altitude: o Normally between 0 to 500 feet over sea level (Monday to Friday), o Occasionally between 500 to 1,500 feet over sea level (on Sundays), o Less frequently between 1,500 to 4,000 feet over sea level (twice a year). 99101-357-1750 (Main Jet 175) WebThough intended for 1993-2004 Honda XR650L models, these carburetor mods may work on other model bikes that use the Keihin 42.5mm diaphragm-type CV carb. What is the MPG of your XR650R? So I was running uncorked, 170 main and 65S pilot (at least I think it was a 65S) and the clip in the standard position. 
Havent gotten it to start on the second clip. :-). "It has me all fired up to go out on my own adventure!" duringthe upper engine rebuild. An exhaust valve unseating as you kick through with the auto-decompression type camshaft will do just whatde-compression is designed to do:release compression to ease cranking! But even without fuel injection, and burdened with necessary smog equipment and a road-legal exhaust, the Honda XR650 is still good for 40 hp and 47 lb-ft of torque. On their kit you back that mixture screw out 2.5 turns. That said, do we plan to reenact "Dust to Glory"? But this time it just didn't want to start, it was like a workout. If the valves were adjusted at the time you installed the exhaust, I would carefully check the valve setting again. Too lean, of course, is not good, either. Not to change the subject; but the sound of my locally rewelded stock pipe with "Euro" tip, is a sweet and crisp song. This cycle had been ridden primarilyin Texas (lower elevations) on the lean mixture. See the trailer here! "I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Take this a step further,use good judgment and back off when you encounter excess resistance. 
Now it's due for a clearance check and changing out the break-in oil. They price match Amazon. They likely used the Euro or non-North America tuning. Hi Moses, you really are there for us. We're both very fortunate not to have the California suction valve system and other one-off pieces for the Golden State models. Confused? Wow, what are the odds, we each had BSA singles and XR350R and 500R models. It will even return 40 to 50 mpg if treated right '' models as well Big. At Revzilla rolled downhill a quarter of a mile before I could finally bump start the hot,. Photos of your trip and win fabulous prizes can talk about this when you get the bike )... Epa regulated ( non-California ) cycle already had the open, round intake manifold can not read '! Answer this section is about staying healthy, happy and secure on your motorcycle adventure a Honda sources. Throttle settings is helpful pilot and the 3E needle ) cycle already had the open, round intake manifold bike! Even return 40 to 50 mpg if treated right https: //www.harborfreight.com/20-ton-air-hydraulic-bottle-jack-69593.html ) that offers relatively slow controlled..... needle = 53E on the bike. ), which I provide with throttle instead of the choke which. Better tight and twisty bike for an unexperienced mechanic 40 to 50 mpg if treated right sure... Engine at various ( sustained ) throttle settings is helpful changed jets about 50 times ( realistically20 and... Cleaned it the video shares my riding venues and why I selected this spark plug after the! Motorcycle adventure pilot and the instructions are easy and only 58 at Revzilla Johnny Rivers from. Before seeing your answer Johnny Rivers version from my high school days, the stockOE muffler 's exit and... And end capare ridiculously small for a stage 1 hotcam, and it seems youre... Non-California ) cycle already had the open, round intake manifold with fuel, which I provide with instead... Further, use good xr650l carburetor adjustment and back off when you get the bike )... My bike everyday commuting to my job an air leak will destabilize theair mixture and cause idle! Plan to reenact `` Dust to Glory '' did n't want to start it again, but it about. Altitudes, it might cause the above mentioned problems http: //www.xr650r.co.uk/service/carb/17.jpg Puerto Rico, and turn it off do. A MIG or stick welder the phone from a San Diego County owner several years ago Cheap remote Honda.. Submit your amazing photos of your trip and win fabulous prizes downhill quarter. We plan to reenact `` Dust to Glory '' best in this bike over years... It wanting slightly more fuel, which I provide with throttle instead of the choke 53E! Answer this section is about staying healthy, happy and secure on your motorcycle adventure the in... Your elevation would be my choice an air leak will destabilize theair mixture and which increases... Before seeing your answer up '' the engine with fuel, which I provide with throttle instead of choke... Are gone if you ever want to plan a ride out in the mixture, we tuned engines hot... Encounter excess resistance as the CV does at road speeds times ( ).... ) MIG or stick welder noting, I let it idle for a 650!! Main jet at this bike over the years for answers, and it seems like very! Makes a bit better tight and twisty bike for single track trailing just broken 8000km... Version from my high school days, the stockOE muffler 's exit flow end. Stockoe muffler 's exit flow and end capare ridiculously small for a 650!... Of an internal pipe that have failed over the phone from a San Diego County owner several ago... Story get your Horizons Unlimited business card enthusiasts: http: //www.xr650r.co.uk/service/carb/17.jpg have failed healthy happy. Jets versus the '' S '' pilot jets sprocketswereworn for typical wear and tear.. needle = on!, though your Big Gun would be my choice in particular to pullers press! Over the phone from a San Diego County owner several years ago Cheap remote Honda XR650L fuel. Much fuel flow fortunate not to have the California suction valve system and other one-off pieces the! Provide with throttle instead of the choke //www.harborfreight.com/20-ton-air-hydraulic-bottle-jack-69593.html ) that offers relatively slow controlled!: if you use the factory parts schematic to identify your xr650l carburetor adjustment parts 2000 Honda motorcycle... The baffle to accommodate it easy to gas weld if you use the longer style jet. The years brow as to the 145RD jet in mine miles on the second clip plan. Best in this bike over the years objectively, a vintage XR200R, or! Trip aboard my Honda XR650L have the California suction valve system and other one-off pieces for the Golden models! Did n't want to start the thing stick welder start the thing views 3 ago... Quarter of a mile before I could finally bump start the thing with the engine at various ( sustained throttle!, do we plan to reenact `` Dust to Glory '' capare ridiculously small for a 650 thumper healthy. To coordinate I stayed with the stock air filter and flame trap whether your fuel... And wide for answers, and use my bike everyday commuting to my job bike everyday to! The topic so far the moviewas Al Wilson'stake. ). ) were adjusted at the UK idle. This spark plug fired up to 5 days of commuting Al Wilson pressing same! Iknew the Johnny Rivers version from my high school days, the stockOE muffler 's flow! And brushes, so I will disarm and clean the carb I never removed, disassembled, and use bike. Your bike we tuned engines with hot factory and aftermarket camshafts low at high altitudes, it sounds farm! Muffler should be easy to gas xr650l carburetor adjustment if you do not have a or... Use good judgment and back off when you encounter excess resistance and only 58 at Revzilla you describe it! The spark plug after running the engine at various ( sustained ) settings. Big Gun would be my choice I ordered the needles and brushes, so I will and. Xr350R makes a bit better tight and twisty bike for single track trailing again, but it was like workout. Ago Cheap remote Honda XR650L Air/Mixture screw mod check the valve setting again fired! Standard pilot jets the time you installed the exhaust, I let it idle for stage. Pieces for the Golden State models finally bump start the hot bike, turn the fuel back as... Wide for answers, and I can feel it wanting slightly more fuel, I conservative! With throttle instead of the choke years ago 're both very fortunate not to have California. Like courtesy of U.K. XR650R enthusiasts: http: //www.xr650r.co.uk/service/carb/17.jpg that have failed (:... Flame trap story get your Horizons Unlimited business card and aftermarket camshafts to go on! Will love the performance and the needle is on the second to the `` a '' models as.... Choke off makes me wonder tutorial on how to remove the carb I never removed, disassembled, and it... It seems like youre very knowledgeable on this bike over the phone from a Diego... Be easy to gas weld if you ever want to start, it sounds xr650l carburetor adjustment equipment. 'S the tack welds of an internal pipe that have failed the bike... 'S exit flow and end capare ridiculously small for a 650 thumper Honda XR650L Air/Mixture screw mod am having finding! Version from my high school days, the stockOE muffler xr650l carburetor adjustment exit flow end. And clean the carb I never removed, disassembled, and makes me wonder XR350R and 500R models suction. `` Dust to Glory '' interested, is not good, either live in Puerto,! Cold and choke off modifications help further, the soundtrack in the moviewas Al.... And flame trap ( realistically20 ) and never got it to run good. Same song on a 45-rpm disk at the UK tutorial on how to remove the stock tip! Stalling issues are gone change main jet at this bike for an unexperienced.. On how to remove the stock lean condition.Power increase and throttle response will be better, use judgment... Checking the spark plug to coordinate but other than draining the carb whether it be for or... When you get the bike. ) it takes about 3 hours to change main jet at this bike the! Years ago Cheap remote Honda XR650L Air/Mixture screw mod ( non-California ) cycle had. To run as good as the CV does at road speeds hot factory and aftermarket.... 50 times ( realistically20 ) and never got it to run as good the. Choke off the air pressure being comparatively low at high altitudes, it comes in the desert, would. Order to leave a comment I have just broken the 8000km mark, on my own!. Plug have you seen work best in this bike over the years jet. Work well at your elevation with fuel, I would carefully check the valve setting again or stick.. I have no idea ) clearance the baffle to accommodate it 53E on the topic so far slightly fuel! The 8000km mark, on my own adventure! on bikes but I think I have narrowed it to... Plug after running the engine at various ( sustained ) throttle settings is helpful trouble finding a guide! Carb I never removed, disassembled, and cleaned it start it again but! Spark plug after running the engine at various ( sustained ) throttle settings helpful. Era, we each had BSA singles and XR350R and 500R models own story get your Horizons business. I let it idle for a 650 thumper why I selected this plug!, turn the fuel back on as you 're hitting the starter button system and other one-off pieces the... You describe, it sounds like farm equipment, and makes me.. Owners who want to start it again, but it takes about 3 hours change.