2. The whole unit must be replaced as one. resistance or continuity through the stator’s windings. This post helped a lot of people out maybe have a look? The three types of batteries commonly used in motorcycles are Lead Acid Batteries, Dry Cell Batteries and Gel Motorcycle Batteries. This changes the AC wave to a direct (more controlled) voltage signal. Black meter lead to the green(-) wire while placing your red test lead to the yellow wires one at a time. A car's alternator is made up of three parts; stator, rotor and voltage regulator, all combined in a single component. It’s never a good sign when your motorcycle is struggling to stay running while you’re out for a ride. If it exceeds these points, the battery will either be over charged or will drain as the motorbike runs. *Results: You should see a standard resistance reading (depending on the specifications noted in manual) between .001 Ω up to .9 Ω. test your battery in the bike with it running with your meter, should be between 13.2 and 14.5 volts. You’ll likely see a small dip in voltage running across the battery when the motorcycle is on it not running. Connect the positive (red) cable to the positive terminal on the motorcycle battery and connect the negative (black) cable to the metal frame of the bike. Also looks like johnny just became our 'go to guy' for all things electric. so you need to warranty the new battery, and say it was not charged or wasnt charging. It may drain the battery on the motorcycle. Or you may find it's not the battery at all and a charging system problem instead. Avoid leaving the battery inside the bike while charging it, as this could damage to other components. All I remember was the car was running when it happened. We know that current is produced from the spinning motion of the alternator, as RPM’s increase so does the AC voltage output. I want this post to shed light on the fundamentals of how to troubleshoot the most popular and common charging system style that Honda uses on their motorcycles. I've been troubleshooting my 1975 Suzuki TS185 charging system for a while now and am a bit of a dead end. If you get a resistance reading through both ways on the diode. The motorcycle battery charging system has multiple components. Battery takes a charge from battery charger and holds the charge. You’ll also notice any lights become more dim in this scenario. Battery 101: Charging Your Motorcycle Battery. ↓↓↓. This indicates that your stator’s coil winding insulation has burnt up and/or deteriorated and will need to be replaced. Be in the know on whether you actually need a new motorcycle battery or not. The reason why it is called a three phase (three wire) output system is simply because it consists of three coils connected to each other, producing three single phase alternating currents. The average motorcycle battery will die after 2 – 4 months without running. Red or red/white wire: Battery voltage (may have two wires). We do this by verifying that there is continuity through the diode(s) in only one direction. Your battery is most likely dead (zero charge left). If it's not, then there is probably insufficient power to charge the battery and run the car. The terminals on a battery are the two small metal rods that stick out on either side on the top. If they haven’t, then on each reading you should get NO numeric resistance readings on your meter what so ever. Charging a motorcycle battery is not hard, but there are some things you can do to make sure you are successful. • Now rev the motorcycle’s rpms up to around 3,000rpms and hold. Most automotive chargers pump out 13 amps, 30 amps or even 50 amps. The style of rectifier that is most commonly used for the 3-phase voltage output type system, can either be the “triple phase full-wave” type or the “triple phase full-wave with field coils”. First, you need a battery that is fresh and holds a charge. Q. I have all sorts of electrical problems with my bike. In general, the idea is that the more current you are putting into your battery, the more likely it is you should take it out first. If your bike produces less than that because of a tired charging system, the lithium battery will not charge, and it … (This check isn’t necessarily as important as the other tests and is not shown in the video version). Yes. Note the reading. These batteries are considered maintenance free and do not need to be "topped off." 1.Green wire: Grounds the system to the frame (may have two wires). Newer batteries can last longer with an average of 3 – 5 months until dying whereas older batteries will not last as long giving it an average of 1 – 3 months until the battery dies while the motorcycle is sitting. This needs to be 12.5volts or above for accurate testing results I tested the voltage at the battery when the bike is not running and got somewhere around 12-13 volts. No need to go running to a dealership to spend money. With the bike running at operating temperature. 4. If the voltage stays above 12 volts check the charging system on the bike. If your battery is charging perfectly but your motorcycle still seems to keep killing the battery. Motorcycles have had some form of battery since the idea of motorcycles came about. When a motorcycle has a bad terminal connection, that means the battery cable either has a poor connection or isn’t connected at all. I use one like this that gives you a Digital voltage read out. When either of these two systems are in motion, waves of alternating current (AC) are generated. Jump-Starting the Battery Get jumper cables. If the windings have developed a short to ground, you will see some type of resistance number. Take a look at the expiration date of your battery; if it’s close, it may be time to get a new one. Please forgive me for this awful video quality, I wanted to have something solid that you could watch. Remove the battery. You’ll need to proceed with caution if you get a jump start from a car since there’s a risk of ruining the motorcycle battery. Your motorcycle’s charging system check is complete! A motorcycle battery isn't too different from a car battery. This is more likely to happen if the battery is old or expired. This battery is getting weak. Once you have located the rectifiers harness side connector (same connector as the regulator on single sealed units), you want to test for both continuity and voltage drop on both the red or red/white wires (battery positive) to each of the three yellow wires. When the regulator/rectifier isn’t doing it’s job, that could mean it’s not converting the power into voltage the motorcycle can store which leads to the battery not really getting any power at all. → → →, Pre 1980, some bikes used these two systems as separated units. It just destroys them. *Results: What you are looking for is a consistent AC voltage output reading from each leg of the stator. While you are ridding your motorcycle, the charging system provides electrical power to run electrical components and accessories. Batteries aren’t able to store AC current so the regulator/rectifier converts power into a type of current the battery can store. If the voltage shown on the multimeter is less than 11 volts, your battery should be charged (13 to 13.6 volts is ideal). Leave the cell caps off during charging. In order to test all of them, you need a small multimeter, you can get on for ten bucks. No change when revving the bike up. Blog about Car and Automotive. To little charge will gradually kill your battery. Being a motorcycle owner, you should understand these types so that you’ll be able to maintain the battery in accordance with the manufacturer’s instr… A low or failing battery can cause crazy readings during your testing. IGNITION OFF. Be in the know on whether you actually need a new motorcycle battery or not. Does your battery seem to be going bad? ↑ Most common stator and flywheel combination ↑. I use these almost everyday I’m on the job. *Results: What you are looking for here is to see if any of the stator’s windings have grounded themselves to the case. Thought stator was bad. If the battery voltage increased to above 14.8 Volts, the charging circuit is likely overcharging the battery. Charging Motorcycle Batteries A fully-charged 12-volt motorcycle battery should measure about 12.6 - 13.5 volts between terminals depending upon its chemistry. The rectifier is bad and will need to be replaced. Lastly, you can attempt to do a push start your motorcycle since you may not have the battery power to get it started. *Results: Since this wire needs a external signal. While technically you could use the automotive charger, if you don’t keep an eye on it or leave it unattended … Some bike's charging systems don't actually 'charge' the battery until a certain rpm limit is hit. Battery – Stores regulated DC current. Then, release the battery from anything connecting it to the motorcycle body and lift it out of the bike. There is a very effective way to see if your battery has any excessive draw on it while the key is off. In which case the stator has begun to break down or is bad. Anon A. link to Can You Ride A Motorcycle With A Blown Head Gasket. you are looking for is continuity (a path) that continues through all three leads. My motorcycle is not charging the battery. Battery charging problems sometimes arise. Battery not charging while running. If you find yourself dealing with a battery dying while your out for a ride, especially if you’re far from home, there are a few things you can do. A draining/drained battery will also manifest itself through clicking noises when you try to start the bike again. Note the reading at 1500rpm. Once this happens, all voltage that is produced, never reaches the battery causing either a low charging output at the battery or no charge at all. This NEEDS to be correctly charged and tested before you start and troubleshooting. Same goes for if you get an open (no numeric reading) through both ends of the diode. What is the problem with my new battery of 350cc bike which is not charging while running and often being dead? Record your readings. Check the harness for breaks, rusty corroded frame ground, or loose connections (battery terminals included) This can result in a high charging output to the battery and in some cases a no charge scenario. The mechanism of a motorcycle does charge it’s own battery while the motorcycle is running. The bike dies while running. Most automotive types of battery chargers are not suitable due to higher current output. Step 10: You're All Done! Oct 30, 2020 #1. Your battery may even be holding a charge, but it's the cold cranking amps that may determine if your battery needs replacement. If it drops below 12.4 volts DC or so, it’s shot. (The bike does not need to be running to do this test). Related troubleshooting techniques and potential causes are discussed on this page and are applicable to all GL and CX models. Checked ac output from stator. You must ride it to produce a load on the electrical system, or at least run the engine at a cruising RPM, for quite some time to produce the 13.5-14.5 volts required to charge the battery back up. Batteries can not store AC voltage. Finally, to the question of how long will a motorcycle battery last without charging, the main factor is to keep the battery in use and never let it run low. Once this signal is read, the regulators job is to either send the excessive voltage straight back to where is came from, short it to ground, or send a signal telling the field coil to stop its output. You also have the option of getting a jump start either from another motorcycle or from a car. Bajaj Motorcycle; Motorcycles; All Recent ; Join; Sign In; Ask a Question × Home; Forum; Motorcycles; Bajaj; Discover; 2007 Bajaj Discover; My battery not... Share on Facebook; Share on Twitter; Share on Google+; Share on Pinterest; Share by Email × Question about 2007 Bajaj Discover. 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