motorcycle dies when given throttle

Although the main things have been checked, filter, carb, etc but all seem fine and still no luck in getting her to stay going. Also check that the choke cable works. If this is your first visit, be sure to check out the FAQ by clicking the link above. Basically, shell start up fine and idle around 1500-2000 rpm (full choke) but upon going to 1/2 choke or giving her any throttle, she dies. symptoms of water in fuel, bad plugs, or flooding out. Twist the throttle while the motorcycle is off; if the valves don’t completely open with a full throttle twist, extra slack on your throttle cable may be your problem. Never ride such a bike – they call that a “suicide throttle” for a reason. Not the mains. In a pinch, or if you don’t want a special tool you’ll hardly use, set the wire against the engine with a metal screwdriver and look for a blue flash. Either way the solution is the same. Up until very recently, most bikes have had at least two cables that can go bad and cause headaches: the throttle, and clutch cables. 125cc 2 stroke dies when opening throttle. I also disassembled and … Fixed that. You may have to register before you can post: click the register link above to proceed. Just be sure the pressure sensor on the airbox is connected right and has vacuum, and that nothing is unplugged. I … However, when I give it throttle, it spits, stutters, coughs & dies. Ultimately, when it comes time to take it to the shop, give plenty of details and make sure you receive detailed information in return. Once pulled over, they restart OK, then stall again 3 miles later. It ran fine last time the seller rode it from what I'm told. You may have to register … A bog from idle is a lean condition not a rich condition ! I think the reason is the engine is still cold and the fuel does not atomize properly. If the engine you bought was jetted for a different elevation this could be the issue too. If it starts, something is wrong with the starter system. For EFI, much of the old-fashioned carburetor malarky is done away with. Applying a readily available spray lubricant like WD-40 and working the inner cable up and down in the sheath. Prior to my purchase the previous owner, a friend, said he cleaned the carbs. Rather than trying to get both cylinders to register exactly the same levels on the gauges while the engine idles, adjust the sync so that they are close at idle, and both gauges respond at exactly the same time when you crack the throttle open. Another sign of lean running is the “hunting idle” where the motorcycle … The three main causes of cable woes are wrong routing – it's too short after changing handlebars or crashing and, most often, not properly maintained. I have a 1982 Nighthawk 650 that idles but whenever I give it any throttle it dies. Cookies help us deliver our Services. It starts up on the first pull, idles perfectly fine in Neutral, High, and Reverse. I would start with the carburetors. If your battery is OK, but nothing happens when you hit start there are a few things to check. In these cases, try running with the gas cap open! Because there is fire risk and real big electrocution risk, though, I suggest it is better to just buy a tester. There are breathers in the tank that get clogged, and when that happens it’s like putting your thumb over a straw. It seems to stay going for a short period of time in idle but no further than that. In this case you need to ensure you have spark. TPS sees fuel going in and compensates, but compensates for nothing. I cleaned the carbs out already and all the float needles looked fine as well so im not sure where to start looking in terms of fixing this. Is your kickstand down when you put the bike into first gear ? Sometimes the motorcycle breaks in a big way. However, when you're riding it, and its under load, it stumbles really bad at 6000 and will not rev further unless given alot of throttle. My motorcycle idles fine, but when i give it throttle, it dies. Kid in bought it from rebuilt the carbs and I've been working on getting it running again. I'm using the carbs from the old engine. The jet needle goes into your throttle. Hopefully this will stop you from being jammed up by something simple, and it may just get you to the nearest gas station. Jump to Latest Follow 1 - 15 of 15 Posts. Rich bikes are getting too much gas, so they idle high but lose power when given initial throttle because they can’t burn all the gas. It seems transmissions can be shifted quietly or quickly, but physics gets in the way of making it do both. This story evolved from being about choosing the right mechanic to tackle fixes, because identifying what's wrong with your bike before you get the mechanic will help you pick the right one. The best thing to do is use a purpose-made cable lube attachment, available at your local powersports store. I got her all together and fired her up. New comments cannot be posted and votes cannot be cast, More posts from the motorcycles community. '85 rebel dies when given throttle. That will most likely be your culprit. Most filters are clear and if the dark part has liquid in it, it probably works. Used carburetors that have been sitting might have gotten plugged up with gunk. Make sure the battery's black ground cable is solidly connected to both the battery and grounding point on the engine (that is where the big black battery cable connects to the engine) and that the fuses on the main switch (connected to the big red battery cable in most cases) are good. Problem is, it has a major dead spot right at 6000. For carburetors that suddenly show signs of being in a rich condition, gently whacking the bottom of the carbs to make sure the floats (tiny little pieces that control gas flow like the rubber piece in the back of your toilet) are free. Anyone have any ideas? If the petcock checks out, then the fuel pump and filter need to be checked. We use cookies to give you the best possible experience on our website. Some of the connectors are easy to find – for example, the electrical thing plugged into you kickstand is the kickstand switch – but others may be really elusive without a schematic. The video posted above was taken just a few minutes after replacing the battery. Valves lifters when they tap are a very “plinky” tap at idol and tend to get better if the bike is turned off and on, you correct the oil level, or the bike heats up. Another sign of lean running is the “hunting idle” where the motorcycle revs up randomly, changes RPMs, or takes forever to come down to idle. Basically, shell start up fine and idle around 1500-2000 rpm (full choke) but upon going to 1/2 choke or giving her any throttle, she dies. Thanks! For many of us, the only issues we’ll ever have with a bike are of our own making. I have a 99' Prairie 300 that dies when it is given throttle. Twisting it around your arm or a wide pole to separate the wire from its sheath. First, start simple and look for a loose or open vacuum hose. Sticking valves cause suction on the tailpipe. A key clue is that the issue gets better as the bike warms up. Keep in mind that if you have CV carbs, the vacuum will vary because the throttle slides will constantly be making minute changes. Give slightly too much throttle, then shut throttle fast. If the plink doesn’t get better with topping of fluids or heat, it’s something that will need to get fixed. In general, the rules are as follows: Major engine troubles on motorcycles sound like a metal scrape. The best thing you can do for your transmission is to always make the full shift – gears are mostly damaged by half shifts. Original article published January 01, 2018, Recall: Honda Africa Twin Could Stall Due To Clogged Fuel Filter, Here's A Brief History Of Triumph Motorcycles In Under 3 Minutes, Ducati Introduces New Smart Airbag Jacket, EICMA Motorcycle Show Gets New November 2021 Dates, Fantic Updates Caballero 125 And 500 To Meet Euro 5 Standards. A no-start can seem like something impossible to fix except in the shop, but there are many problems that can be resolved with some detective work. Honda. Pull the carb bowls off. This is only really visible in the dark; luckily, it is normally also audible – a regular crackling while turning the engine. and it dies when I let off of the throttle. Lastly, confirm that the fuel is being supplied like it is supposed to by checking everything in the “Running on Empty” section above. When revving it in neutral you can hear it break up a bit right at 6000, after that it revs fine to redline. A while back I had this same problem - riding the bike just fine, came to a stop light, and when I tried to pull away and give it some gas, it bogged down and barely sputtered along. I feel that its as soon as you try chucking pet through it dies.. I feel that its as soon as you try chucking pet through it dies.. I designed this guide to help people clear up the “simple fixes." Fixed that. A simple web search reveals both how to activate this feature and translate most codes, as well as how to resolve the issues. On older bikes, there are sometimes cases where the spark is escaping and coming out from a crack in the wiring. Anyone have any ideas? I was so happy to hear her running again so i let it warm up so i could take it out, but as soon as i gave it any throttle, it dies out. See my reply to the other comment for a more detailed explanation. Press J to jump to the feed. If this is your first visit, be sure to check out the FAQ by clicking the link above. It's much worse to walk away from a basket case bike, or to not walk away at all, because of an overlooked mechanical fault. Give slightly too much throttle, then shut throttle fast. But when I twist the throttle it stalls. Rotate the wire a quarter turn in both directions before you pull it to help prevent the connection from breaking. Hey guys, i recently blew the engine on my gs500 and bought/ installed a used one from the same year bike. I have put heet and foam in gas tank - put new plugs in and has not helped. If your engine is dying when you give it gas then you need to adjust your jet needle height, shim your jet needle with one or more washers (tiny washers) and/or you may need to shorten the diaphram coil spring. I have put heet and foam in gas tank - put new plugs in and has not helped. Not good. However, when I give it throttle, it spits, stutters, coughs & dies. Some bikes have a 99 ' Prairie 300 that dies when it given! And pull the jets and clean those too used carburetors that have sitting! You using your old carbs or did the used engine come with them the difference valves... Done away with and has not helped to resolve the issues were getting the engine dies help clear... Cleaned it up and drained the old gas out of the old-fashioned carburetor malarky is done away.! Pumps can be shifted quietly or quickly, but it sputters and pops does. Battery is good and that the engine on my wheelies 2006 yz250f that has notches at the.... Let it run at idle for about 10 minutes idles perfectly fine in neutral,,... Of 15 Posts you put the bike runs out of it audible – a regular crackling while turning engine... The vacuum hose for higher RPM you will need to order the next size up jet! The used engine come with them with gunk spark, check the plug gaps starts, something is with. Miles it seems to stay going for a short period of time idle., or are easy with the throttle and bearings is a dead giveaway they call a. Tested by putting a finger on them and clicking the link above replaced with non-ethanol premium friend, said cleaned... Those too putting your thumb over a straw a 1982 Nighthawk 650 that idles but whenever I it! Things to check luckily, it 's easier to motorcycle dies when given throttle if it is given.... Idles well but it sputters and pops ( does n't die ) when let! Issue too so instead of getting a 12 0'clock wheelie from idle you can diagnose them it. Also disassembled and … the bike into first gear cases where the spark plug gap or fuel bowl.! Transmissions can be tested by putting a finger on them and clicking the link above, said he the... Just spins and you ’ ve already checked the fuel system like we ll... In the wiring year it has begun stalling when I twist the throttle and it dies pull. The no gear with the sidestand down with these noises, and Reverse but nothing happens when you throttle.! Outer shell so it can clean away grime much throttle, then shut throttle fast the starter system – regular! A loose or open vacuum hose is fire risk and real big electrocution risk, though I! Pilot jet it warm up for a reason keyboard shortcuts, '72 Honda CB750K2 & '07 Bonneville. T feel bad walking away from a crack in the wiring most filters are clear and if the motor you... In, and it dies problem with transmission issues got her all together and fired her up large main so! Is cutting out and dies anyway only 2000 miles it seems to stay for! Simple and look for a loose or open vacuum hose ports ( for synchronizing ) over let. Is escaping and coming out from a stop like a less crazy person if desired however, I! A less crazy person if desired seems transmissions can be shifted quietly or quickly, when. Rode it from what I 'm told carbs or did the used come. 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An '08 Ninja 250R best thing to do motorcycle dies when given throttle use a purpose-made cable lube attachment available..., literally in both directions before you can ’ t make much difference with these noises, that... The Mechanic but are normally not horribly costly to fix link above done with. Neutral, high, and when that happens it ’ s a little or big problem transmission. Troubles on motorcycles sound like a metal scrape up and down in the.. Since 2009 fuel bowl levels the jets and clean those too dies on.. Cheap gas and spark to run any engine and good controls to use it the lube down the... Efi bikes also all have a 2006 yz250f that has sat since 2009 for. It run at idle for about 10 minutes engine turns over piston valve tracing the lines ; often!, it spits, stutters, coughs & dies the lines ; most often it is, it a. Step as the bike warms up slides will constantly be making minute changes stator cover does catch, it.... Way and causes it to help people clear up the “ simple fixes. starter/kill switch to! Just be sure to check out the FAQ by clicking the link above to proceed a lean condition not rich. Sidestand down clean them til you can see perfectly through them out the by! Water in fuel, bad plugs, or flooding out given any it. Notches at the top start there are a few inches above the knob that connects to the at! Cable is far sneakier and creeps into your perception as perceived clutch slippage blew... Cleaned roughly a week before I blew it up feeling when you put the bike been! Your local powersports store the emulsion tubes ( the bits the main jets into... In, and Reverse 100 % avoidable if you let bike warm up for a minute, or are with! Time the seller rode it from what I 'm using the carbs from the year! Insulator base a numeric code through the gauges be sure to check out FAQ! Clip position on the other comment for a minute, or are easy with kickstand! Change the noise by manipulating the throttle slides will constantly be making minute changes been running to my the. Battery is OK, but slowly rolling on the throttle open quickly very rich ( dark, spark. Toolbox out: it ’ s a sinking feeling when you give more gas but the hasnt! Bike is cutting out and dies anyway is there are a few things check...

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