It can burn the wiring harness (especially the wiring that goes from the rectifier to the charging system), harm/destroy the battery and the charging system. One of the simplest ways to notice a bad Harley voltage regulator is when the cluster cannot power. If the rectifier/stator is shot the bike wont run once the battery gets flat because its not being charged by the engine running. The first deals with diode burnout, resulting in battery drain. BTW on my bike when it was getting hard to start when it was cold, but started and ran fine when warmed up, my valves were getting out of spec. With the history of failures and symptoms, they just replaced it, no questions asked. Generally, readings above 17 volts mean the regulator rectifier is not converting excess power. My question,,,,is it normal for a bad rectifier to allow the sea-doo to run for 20 mins fine, then start bogging? it can also overcharge.voltage will keep going up untill something overheats and shots down or burns up.battery and cdi box are first thing that will burn. Here I am only testing the regulator portion of a common Regulator/Rectifier. T. The Triumph used a Zener Diode for voltage regulation. It is highly important to check the condition of all parts in the electrical circuitry since problems in these parts can contribute to regulator rectifier failure. High Voltage Output. It will ensure your safety as well. All it has to do is … If any of the above symptoms are evident, toss it: EVEN IF THE ELECTRICAL VALUES ARE CORRECT, it's toast. The rectifier portion converts the AC power from the alternator into DC power so that it can charge the battery. You won’t have any trouble diagnosing the faulty regulator rectifier if the battery is the cause. ). Then you could almost bet that it is bad. It's more difficult to diagnose a bad r/r when the failure is only intermittent. Even so, there are some single-phase systems available as these are cheaper to manufacture, but the system uses two wires instead of three. So the Rectifier takes the AC energy created by your … Consult the factory service manual or the charging system fault-finding diagram at ElectrexUSA.com for the diagnostic procedure. Depending on the location of the regulator rectifier, the part can easily overheat. One of the symptoms of failure in the regulator of a motorcycle is that it produces “voltage spikes” or an intermittent electrical supply. First, if a diode burns out, it will cause the battery to drain. The regulator rectifier first converts the AC power into a surge of DC power, then normalizes the DC power, ensuring that the power does not exceed approximately 14.5 volts. Signs of a bad voltage regulator in a vehicle include dimming or pulsing lights or a dead battery. Doing some on line research I found that these were symptoms of a bad voltage regulator. If the battery leads to a … Bad grounding, corroded battery connection and poor or loose battery connections will cause faulty voltage. In general, there are two primary ways that the regulator rectifier can fail. Bad Harley Voltage Regulator Symptoms 01. Similarly, it is asked, what can cause a regulator rectifier to go bad? I am strongly leaning towards the rectifier/voltage regulator, because of the battery looks like it got overcharged and bad regulator could do such a thing, but may just be in denial that I have a bad stator or some other issue. Rainville, Orygun, where moss is a road hazard. This results in a backup of voltage and overheating at the stator which in turn results (in time) a melt down of the stator. As a first step, visually inspect it. All of this excess voltage may cause the headlights to become extremely bright and then blow. Check for bad connections and corrosion; these also can cause voltage issues. Power Failure. http://www.triumphrat.net/speed-tri...iagnostics-rectifier-regulator-upgrade-2.html, (You must log in or sign up to reply here. General Causes for Failure There are different reasons why the regulator rectifier fails. It is easy to assume that the issue is a bad battery because of symptoms such as dimming headlights, irregular meter readings and poor starts. Depending on the location of the regulator rectifier, the part can easily overheat. You may need to clean the connectors. I am not getting any fire from my spark plugs. Another issue with older Triumphs we’ve encountered is reports of … Since the max output is going to be needed in cold weather using warming clothing, there shouldn't be a problem getting 27A at 14V = 378W. WANT MORE? It is easy to assume that the issue is a bad battery because of symptoms such as dimming headlights, irregular meter readings and poor starts. A 3 phase system puts the pulses closer together and raises the average at lower speeds. So, how can you tell if the regulator rectifier is bad before testing it? the regulator can fail to keep the battery topped up get the upgrade and throw the old one in a bin for a spare mine failed slowly the symptoms were the same as yours new battery couldn't keep a charge required a battery tender when parked for the evening The problem may not be from overheating, but from a manufacturing defect. Do rectifiers give any advanced - Yamaha 2003 V Star Classic question. Dimming or Pulsing Lights A damaged or failed voltage regulator can rapidly diminish the alternator's ability to cycle power from the battery. Make sure voltage regulator is 'GROUNDED' and functioning properly, watch the video below on how to. I tested the stator and get 40VAC at 3500 rpms so that is working. This can cause the battery to overheat or even explode. Would this be the cause? There are different reasons why the regulator rectifier fails. when this happens bike will stop running.if you lucky you can plug another one and go,if not you end up replacing cdi,regulator and battery. So frequently testing a voltage regulator on a lawn mower is a must. All info is helpfull, Thanks . The first deals with diode burnout, resulting in battery drain. This means if the voltage regulator is broken, the components in your electrical system might only work erratically or not at all. Testing the rectifier with the diode check function of a meter will tell you if it's damaged. As soon as you notice the symptoms, take the vehicle for an in-depth inspection before the problem leaves you on the side of the road. I told them my regulator would show good when they got it in the shop. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, Texas VFR Garage; VFR Regulator/Rectifier Failure; Marc Brinker; 2005, InfoFAQ: Understanding Motorcycle Electrical Parts Q&A with ElectroSport Industries. She has written short stories, news pieces, promotional material, public-relations material, individual highlights and editorial content for a variety of print and online media. Again, a voltmeter will be useful for diagnosis. Also, I replaced the impeller and reinstalled the lower unit. If the voltage drops below approximately 13 volts, the motorcycle will begin to drain the battery and eventually the engine will stop. Some motorcycles are known to have the part located near the radiator or other locations that are either close to heat producers or restrict air flow. There are generally two ways for the regulator rectifier to fail. 0.3V or less between any two terminals, with any polarity, means it's bad. Gauge Flickering. The voltage regulator on a Kohler engine is responsible for providing a smooth electrical charge back to the battery from the stator. You can know you have a bad stator by looking at it. Confirming that it is indeed the regulator rectifier that requires observing and checking certain symptoms. Discussion in 'Dakar champion (950/990)' started by NeptuneTriton, Oct 19, 2015. Ground connections are important for good voltage, and if there is faulty voltage, the regulator rectifier can run hot. A failed r/r can be diagnosed by measuring voltage across the battery with the engine running (you'll obviously need a voltmeter). The voltage regulator in your vehicle is in charge of keeping the right amount of electrical power flowing consistently to certain parts of your car. Not now, but bad things happen because of a faulty rectifier. Loose or dirty connectors: Check the battery connectors and other wiring that connects the stator to the voltage regulator rectifier unit. YMMV. adjusted the valves and it fires up immediately hot or cold. 02. Bad Voltage Regulator Symptoms. One of the first symptoms of an issue with the voltage regulator is dim or flickering gauges. Triumph Stator Failure Problems. I would mostly be concerned that when you got sparks it was from shorting the battery through the rectifier- that could ruin it. One motorcycle part, the regulator rectifier, generally gives some additional signals that it is not operating correctly. If a freshly charged battery isnt the problem, you have a wiring problem, either a dirty loose connection or possibly a short.