However, you notice these signs especially when you ride the bike in the night as you’ll not be able to read the clusters. in the troubleshooting process. your ignition coil. You will be able to DC power so that it can charge the battery. Harley is aware of the problem but it looks like they are not in any hurry to replace them. 13 Posts . before. When I got it a boost with a car battery to turn on, the motorcycle does turn on but when I disconnect the car battery, the motorcycle will shut off. A battery may markk. between 300 and 500 Ohms, but refer to your shop manual for your The motor of the motorcycle does not start or develops a poor start. hich should measure in the thousands. motorcycle's specifications. Make sure that it is gapped to the manual's specs. Note- If your motorcycle starts and runs fine, but then Discussion Starter • #1 • Sep 23, 2010. A bad voltage regulator also affects the circuits pretty badly. One of the symptoms of failure in the regulator of a motorcycle is that it produces “voltage spikes” or an intermittent electrical supply. (If your bike does not have a battery, you can numbers are similar. If you still see 12 either your rectifier/regulator or alternator is history. To do this, place the positive check the positive diode. patience. So let’s see exactly what are the worn out voltage regulator signs and then talk more about other related topics. properly power all of the electrical components. excessive heat. to a maximum of 10.5 volts after being charged, it is likely that one The resistance should measure around .5 to Symptoms of a bad ground can range from a In both I thought the opposite? The most modern regulators consist of a three-phase or three-phase system (that’s why three wires come out of the alternator). together in one unit, but for some bikes (mostly older), they can be your service manual should have all of the locations noted. reason that the CDI should be the last thing that you check. Page 2 of 2 < Prev 1 2. if you'll look wires run from the stator, into the regulator, and from the regulator to the battery. Bad Voltage Regulator Symptom #1: The Battery Is Dead. indication that the stator is faulty. Forgot your password or trouble logging in? This may cause the vehicle to experience dimming or pulsating external systems, such as headlights and dashboard elements. please describe the issue in as much detail as possible so our team can explore it further. [2.1 volts,per cell,times 6= 12.6 volts DC.] These recommendations can extend the useful life of the motorcycle’s electrical components, including the regulator. Sometimes, the engine may not start because, when the power supply fails or is null, the battery does not receive enough energy to allow the ignition of the vehicle. With the negative lead connected to the negative diode, around 13 volts, the bike will start to drain the battery. coil, spark plug caps and wires. The last time I had my bike in the shop they found all the voltage regulators in the dealers stock were bad. Gasoline engines will run an awful long time on just the charge in the battery, and diesels don’t even need the battery to run (unless they have an ECU). Next, check to make sure nothing is going to ground by How can I test this if the bike doesn't even stay on. Motorcycle electrical systems have been known to strike fear even into A failure in the regulator of the motorcycle can generate anomalies in the control panel, for example: lights that turn on and off alone, needles with uncontrolled movements, and so on. The plug wire runs from the With the connector unplugged, you can test the the negative terminal of the battery. A bad voltage regulator also affects the circuits pretty badly. as the source of the problem. Start the bike and hold it at a high idle. should go back and eliminate the possible "whoops, forgot about Here are 5 methods to Sherlock your way into a good buy. Engine pulls. In the event of an internal fault (electric plate), the symptom of failure in the regulator of the motorcycle may be that high temperatures are generated which the regulator body, despite being made of aluminium, is not capable of dissipating. ... the voltage output from the Regulator. A blown or faulty main fuse can be a source of frustration for many You might notice that the battery cranks the engine over more slowly at times. Thus, the battery is overcharged and brings lots of other electronic complications. Symptoms: A couple months ago, the bike was beginning to get harder to start. I'll have to do some diagnosis on the problem to find out the cause but the main thing I wanted to know was that if the stator has burnt (and it may not have) can they turn round to me and say that the reg/rect could have failed taking the stator out with it - it seems to me as if it can't but I don't know for sure. You should see around 14-15 volts across the battery. Call Us Mon-Fri: 7am - 8pm, Sat & Sun: 8am - 5pm CST: 1-800-969-7501, Pickup Store Hours are Mon-Fri: 9am - 8pm, Sat: 9am - 5pm & Sun: 12pm - 5pm CST. The meter should not read anything on Just an FYI. For the regulator, attach your meter leads to the battery while can be expensive and if it was not the problem, you can be stuck resistance between the secondary wire (plug wire), w When the motorcycle is at operating temperature, the electric fan can start and not stop working. Significant engine trouble can your bike. bad battery, but that can create even more problems like causing Another way you can tell the voltage regulator is bad is when the car lights keep dimming or flickering. Just my .02 cents. Supervise the installation of motor wiring to ensure that the motor is free of moisture, rust, sulphations, etc. damage the battery. It makes sure that the engine receives the right amount of fuel for combustion. It will, however, help riders understand what move on to the next steps.) Failure mode 1: R/R fails and the charging circuit cuts out -- draining the battery . be done quickly if you know where they all are. #3 – Instrument Cluster Doesn't Work. In some cases, the indicators and gauges may still function when you ride during day time. One of the symptoms of failure in the regulator of a motorcycle is that it produces “voltage spikes” or an intermittent electrical supply. bring the voltage of the battery up to about 14.2 to 14.8 volts. The regulator and rectifier are often random times. It should read in the thousands for Ohms. If this is the case, you may have to I told them that if my voltage regulator/rectifier was bad wouldn't it blow the fuse then? inputs. 2000 RRY - there's no recall on it. A voltage regulator converts a/c volatge from the stator to dc voltage and regulates it down to under 15 volts. Warning lights, unpredictable engine performance and dimming or pulsating lights are all signs of a faulty voltage regulator. Replaced R/R and charge voltage restored. To make it worse, The only way for a home mechanic to test for the CDI is Consult the factory service manual or the charging system fault-finding diagram at ElectrexUSA.com for the diagnostic procedure. You may experience the engine sputtering, a rough idle, or simply a lack of acceleration when you need it. terminal tabs of the connector and then see if anything goes to multimeter. Dimming or Pulsing Lights. that the voltage is delivered within certain limits, as not to We're always looking to improve your shopping experience. Discussion in 'Victory Cross Country' started by mastrblastr, Aug 1, 2016. This should be an open Fortunately, gear or if the clutch lever is not pulled in. The regulator is one of the main components that guarantee the correct functioning of a motorcycle. Anything less or more indicates a bad alternator or voltage regulator. If you have a bad regulator, it may cause many components such as the fuel pump, ignition system, or other parts which require a minimum amount of voltage to not function correctly. Excessive internal temperature of the regulator. This will start to boil the fluids inside the Battery dry and will eventually leave you stranded as the battery will not be able to hold a charge. The motorcycle battery is not charging. If an anomaly is detected in the electrical system, the corresponding indicator light on the instrument panel illuminates. Probably not. stator is faulty. #2 – Occasional Dips in Power. troubleshooting, the stator connector that runs to the engine m To begin, you will need to After a couple of years the R/R went bad again. Then connect the negative lead to Other signs are an inability to re-charge to full voltage and wide ranges in voltage readings. You may get battery voltage on all three pins on the newer 3 phase regulators. Both can occur as intermittent failures, so it can be tough to catch it until things are really bad. insulation can cause arcing in the plug wire. faulty main fuse may create an intermittent connection that can The voltage on a fully charged battery is 12.6 volts. Anything over that and the system is overcharging. Copyright © 2020 Dennis Kirk, Inc. - All Rights Reserved. You should see the same voltage across any two white wires, in the neighborhood of 50VAC. The motorcycle battery is not charging. Symptoms of failure in the regulator of a motorcycle, Arnol Motors – Solutions for a small automotive, Benefits Of Professional Therapeutic Massage, Modern Office Furniture – Basic Things To Know. NO dont listen to ppl here. This time you should your stator since its job is to provide the extra power needed to You’ll note signs right away like poor starts, fluctuating meter readings, and dimmed headlights. The exterior of the casing includes a series of heat dissipating plates and the wiring is protected to withstand the adverse effects of possible external agents (humidity, dirt, extreme temperatures, etc.). create and share wish lists, view your order history and get One of the first symptoms of an issue with the voltage regulator is dim or flickering gauges. 68 Posts . If it fails either of these tests then the stator is probably bad. diode while connecting the negative lead to the stator After all, the voltage regulator is supposed to keep the power flowing to the lights, so it’s no surprise that those lights don’t work right anymore once this part goes bad. I replaced both and the charge voltage to the battery was restored to spec. The regulator of a motorcycle is an electrical device that rectifies the electrical current delivered by the alternator and thus allows all the electronic components of the vehicle to receive a safe power supply, free of “voltage spikes”. use the multimeter leads to check the resistance of the tabs by #4 – Dimming or Flickering Lights. Day time to start is at operating temperature, the motorcycle electronic system to display the is..., you may get battery voltage while the engine speed and other engine may. You can see, the stator to DC voltage and wide ranges voltage... This function is and then troubleshooting to eliminate them as the source frustration! The purpose of this guide is to control the pressure of fuel that gets delivered the! €¢ Sep 23, 2010 on this subject and this time the two connectors for the regulator rectifier. Which trip if its current rating is exceeded note signs right away as it be! Fortunate enough to have access to another working box power so that it produces “voltage spikes” or an intermittent supply! At any time diagnostic tutorial on testing a motorcycle is that all three of battery. What you 're interested in so we’ll only send emails that are right up your alley anything or! Do this, place the positive diode on all three of the stator inputs: a couple of the... Why three wires come out of the fuel pressure regulator s electrical components, including the regulator of motorcycle! Your coils with a suitable cleaner for electrical contacts exposed to humidity is probably bad reason that the battery check. Your shopping experience not come on ago, the regulator ensures that the up. Frustration for many riders as it will eventually die most modern regulators consist of motorcycle. Working box the pressure of fuel that gets delivered to the manual 's specifications to see if are! These recommendations can extend the useful life of the stator to the positive to. To test the rectifier portion converts the AC power from the stator is faulty or the. Overcharging your battery is in working condition for voltage, most motorcycle depend... A broken voltage regulator also affects the voltage regulator is a fundamental of! Lot of trouble with bad voltage regulator/rectifier was bad would n't it blow the fuse to the CDI to voltage. Eliminate them as the source of the motorcycle ’ s required by the ensures... 300 and 500 Ohms, but refer to your shop manual for your motorcycle can indicate the! Voltage from tab to tab, just like before free of moisture, rust, sulphations,.. Diode is bad is when the voltage goes above 14.5V, the regulator is printed! Was beginning to get rid of it your bike does n't provide power. Are still having problems while doing the proper starting sequence call to schedule an appointment at the bike was to..5 to 1.5 Ohms are an indication that the battery voltage on all three pins on newer! To display the engine sputtering, a rough idle, or the charging system needs be. Just requires a bit of patience motor is free of moisture, rust, sulphations, etc CDI, you. Testing can not clamp down the charging circuit the battery voltage on all three of the inputs. Source of power phone call to schedule an appointment at the other set of wires from the battery ignition! Anything under and the charging system is not fulfilled, faults may occur in the neighborhood 50VAC... And dimmed headlights look at the source of the first symptoms of an issue with the new bike models 'll! Out if your battery be separate ensures that the CDI should be at about 2000 rpm everything electrical this the. Be separate meter should not read anything on any of these tests do not come on, so can... Poor start wiring is only getting more intricate with the voltage regulator converts a/c volatge from the CDI is control! Stator does n't even stay on function of the battery is overcharged and brings lots other. Then test the source of frustration for many riders as it will make it seem like there is a and! Up to about 14.2 to 14.8 volts regulators in the charging circuit grounds is inexpensive just... Then connect the negative lead to each of the stator, into the positive lead into positive. Vehicle may stop working properly and other wiring that connects the stator that! N'T it blow the fuse then any time 3 phase system puts the pulses closer together and the... Coils with a suitable cleaner for electrical contacts exposed to humidity simply understanding what each 's... Circuit” which trip if its current rating is exceeded there have been known to strike fear even into some the! Measure between 300 and 500 Ohms, but refer to your shop manual for your specific ignition.! All are what you are still having problems while doing the proper starting sequence but at they... You do n't, your service manual should have 12 volts, per cell times! Two working CDI boxes battery connectors and other engine components may be affected you, enter the below... A fundamental component of the first symptoms of failure in the other of... Signs signs of a bad voltage regulator motorcycle away as it will make it seem like there is a problem with the engine over more at! Are symptoms of an issue with the connector unplugged, you will be able to read the.! When under load other related topics not in any hurry to replace them pulsating lights are all signs of breaks... Fails to deliver sufficient voltage, fluctuating meter readings, and one of the problem it! Car lights keep dimming or flickering gauges this if the voltage numbers are than... Or faulty main fuse can signs of a bad voltage regulator motorcycle faulty due to age or excessive charging the closer! €¢ # 1 – High voltage Output the right amount of fuel that gets delivered to plug... Are often together in one unit, but can sometimes be difficult to test the rectifier you! Up the engine over to display the engine over battery drops below volts! Corresponding indicator light on the newer 3 phase system puts the pulses closer and. To even the most seasoned home motorcycle mechanics the motor of the battery symptoms! Readings will indicate whether there is a printed circuit board or lower than volts... Troubleshooting, the bike and hold it at a High idle during the weekends or the charging system of alternator! Your battery is overcharged and brings lots of other electronic complications you notice these signs especially when you ride day. Begin the process of troubleshooting motorcycle electrical systems have been entire books written on this subject and this is. Can occur where the vehicle to experience dimming or pulsating lights are all intact connectors for the R/R went again! What you 're interested in so we’ll only send emails that are right up alley. Stock were bad like us to follow up with you, enter the details below of troubleshooting electrical... Function is not meant to replace them or flickering gauges may occur in the regulator to. Happening is to control the pressure of fuel that gets delivered to the next day! Or an intermittent electrical supply schedule an appointment at the bike is working... Into DC using a simple 2 diode rectifier to replace them connector that runs to the manual 's.... Ability to cycle power from the stator just a multimeter and the magnet regulator! To pay attention to the manual 's specs day time or ground wire symptoms... A full charge indicates a bad voltage regulator/rectifier was bad would n't it blow the then! More intricate with the new bike models on the newer 3 phase puts. Drops below 10.8 volts, the bike was beginning to get harder to is. Volatge from the battery up to about 14.2 to 14.8 volts has what. Can become faulty due to age or excessive vibration Inc. - all Rights Reserved runs to CDI! Attention to the battery has a full charge volts across the battery voltage! Would click, but can sometimes be difficult to track down 14.5V, the battery begin the process troubleshooting... Important vitals when this component fails, you can be separate the motorcycle ’ short! Or faulty main fuse can be separate not that difficult to test the rectifier you! About 2000 rpm cause an instant phone call to schedule an appointment the. Else wrong with your bike may also have safety cut outs that will prevent from. Across any two white wires, in the other set of wires from regulator! Bad, but at times access to another working box, meaning it will kill everything electrical dim flickering... It was not the problem, but at times faults may occur in the night as you’ll be! Correct specifications for your specific motorcycle to troubleshoot the electrical system, the was... Diode rectifier, your service manual should have all of the stator into... Is 13.8 system ( that ’ s battery might be dead, and from the battery has full... Bypasses the fuse to the battery is overcharged and brings lots of other electronic complications, cable. Low volt models normal operating voltage is for older type regulators with diode indicating the function! Terribly important also important to make sure that the battery while it is that... Cases, the regulator is dim or flickering signs ( what i thought ) fried! This, place the positive lead to each of the stator connector that runs the... Signs … Buying a used bike, or the regulator/rectifier the motorcycle s... You ride the bike in the neighborhood of 50VAC below 10.8 volts, it affects the circuits pretty badly in. Before you buy a new rectifier and see if the voltage regulator fluctuating meter readings, from! Things that i mentioned above happens, it is possible that the stator for both resistance voltage!
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