Two underresistance and one overcurrent stages of definite time protection are. The simplistic understanding of what's happening here is that the stator produces the max power is can at a given revs, the load from the bike will hold the voltage level down, at some point the stator will start to output more than is used and the voltage peaks will start to get too high. 3 ohms from any of the three pins to ground and no bad smell from the engine oil. The red should test battery voltage. Adjust the DC output voltage with caution! (Trail Tech is not liable for any damage caused by adjustments made to the DC output voltage!) 3. Troubleshooting a brushless generator requires a magnet and a voltage meter. On the stock stator, voltage was quite a bit lower at idle, like around 10. The rectifier also includes a regulator component as well, to offer outputs of both regulated DC and AC. CHECK AC OUTPUT: • Locate the stator’s wire harness connector and make it easily accessible. You check the stator by hookng your multimeter up to your battery. the output voltage of the two machines should be the same, the phase rotation of the machines must be the same, output voltages of the two machines must be in phase. If it is lower than 60 volts, then you need to replace the rotor. Whole multi step section in the service manual on stator/charge circuitry analysis/troubleshooting. The averaging method used is called root mean square or RMS. 50 VDC at the battery with it running, if it tests OK. • Equal voltage across all stator windings in phase with each other For instance, in a 4-pole generator, the four poles of the rotor are evenly spaced around the frame of the stator. Diagnosing low charging voltage. The stator A. At idle, most charging systems produce 13. Learn how to give them new life with our step by step battery reconditioning guide. Designed for D. When I got it home I cut some heavy grass with it for about 45 minutes. 99 1987-1995 Yamaha YFM 350 Warrior Stator Pickup Coil $34. Most stators have a 3 phase AC output. Making more Watts = making more heat. Regarding the R/R connections - the third wire on the output is one of two functions (unfortunately without benefit of a schematic I cannot definitively conclude for you): either a 'voltage sense' wire, or in some Kawasakis they feed one phase of the stator output back out again for use in the starter cut/latch circuit. Now before when it did fire I had the stator red/blk wire going into the Voltage regulator on the red wire pin ( normally the red pin is the battery input to the voltage regulator) So I had a Y connection on the red/blk stator wire one to the CDI and the other to the Voltage Regulator but it would spark and run. But you can’t say it’s exactly 12V. QAZAKY Magneto Stator AC Ignition Coil 8 Pole 5-wire Replacement for GY6 125cc 150cc ATV Scooter Moped Go Kart Buggy Quad 4-stroke Pit Dirt Bike QMI152 QMI157 QMJ152 QMJ157 TaoTao Roketa Buyang Sunl 4. An PANCAKE generator is simple to trouble shoot with 6 main components: the exciter stator and exciter rotor winding, a voltage regulator, a s rectifier assembly, and the main stator and main. Until recently the easiest way to tell the systems apart is by looking at the plugs that connect the stator to the regulator. B43G Stator Voltage = 28-31 VAC Stator voltage should be checked with the leads disconnected from the regulator. As with any electrical circuit, the stator in an ATV can be tested for continuity with a standard multimeter. It is a $800. Diagnosing Alternator Charging System Problems Over the years Harley Davidson has used many different alternator systems. 139QMB High Performance Upgrades for GY6 50 50cc scooters from Schwinn, Q Link, Avanti,Geely/Jalon Tank, Verucci, Roketa, Meitian and many other chinese clones. not to sound condescending , have you had any luck with continuity tests I explained what and how , also what they should be ? if your not getting any voltage from the stator then the stator is no good or the magneto has lost its magnetism ,if it did loose it magnetism then you would not be able to generate ignition voltage. Our 2-coil magneto stator plate is a top-quality replacement part for most 70cc, 90cc, 110cc, and 125cc dirt bikes. 50v-100v _____. voltage: 6 volt max stator output: 6v - 35w max speed: 53 mph click for the VBA1T electrical page. It was a bad pulsar coil. The yellow wire(s) go the rectifier/regulator which is usually behind the headlights. Probably closer to 40 at. The DC output voltage, for a resistive load, is comprised of the tips of the six line to line voltages. Stator Current & RPM - Motorcycles. Perreault Vahe Caliskan Massachusetts Institute of Technology ABSTRACT This paper introduces a new design for alternator systems that provides dramatic increases in peak and average power output from a conventional Lundell alternator, along with substantial improvements in efficiency. High output stator. High Output Alternators built right in the USA. Rectifiers in scooters do the same thing - they take AC input from the stator, and output a DC voltage to charge the battery when the engine is running and operate the rest of your DC accessories. Ignition Stator Magneto AC 6 Pole Coil For GY6 125cc 150cc Scooter Moped ATV Dune Buggy Go Kart TaoTao scooter. The difference between the two lies in how they are wired and in the output they provide. Rules, New Member Introductions, and Forum Information. The Stator electric scooter is stylish, functional and innovative. They can fix it by putting in an oil line that gets more oil to the Stator. Test 1 - Stator Voltage. The output stator voltage space-vector is transformed back from the d,q-coordinate system into the two-phase system fixed with the stator by inverse Park transformation 7. A voltage regulator is a device with a simple feed- forward design and it uses negative feedback control loops. During an alternator output test, you find that the output is zero amps and the voltage is 12 volts. The pick up is also of extremely high quality and always delivers an exact ignition signal to the CDI through a carbon barrier layer. In a generator, the stator output. GY6 149cc Scooterer Stator Testing : Voltage Output + Sub-Wiring Noneshere. Baja Designs offers high performance LED lights and light bars for off road trucks, UTVs, and ATVs. The procedure for performing an accurate diagnosis on your stator will depend on what model engine you have. Just need to know where to look for output and what I should expect to see. With the help of a DVA Peak Volt Adaptor, you can get a more accurate reading of your stator's voltage and improve the likelihood of a correct diagnosis. When my buddy wanted to add some to his, we checked to see what his stator output was. Please be aware, this is a used part. Technician a says that a wye- wound stator produces more maximum output then the same alternator equipped with the Delta wound stator. One thing to add: it matters what coil goes on which side. The field excitation power needed for these huge machines can be as much as 2. It rotates via an external force, whether that’s water in a hydro turbine, steam in a power plant, wind in a wind turbine, etc. The regulator controls the DC voltage output of the rectifier so that it will charge, but not overcharge, the battery. It is untested but appears in good order. The simplistic understanding of what's happening here is that the stator produces the max power is can at a given revs, the load from the bike will hold the voltage level down, at some point the stator will start to output more than is used and the voltage peaks will start to get too high. Kit High Output Stator 140 W / Voltage Regulator Rectifier Yamaha YFZ 450 2004-2013 RM22430 Kit High Output Stator 140 W + Voltage Regulator Rectifier for Yamaha YFZ 450 2004-2009 RM22430. There are many types of generators, beginning with a dynamo (ac output from stator winding with voltage proportional to RPM), a generator (DC output from rotor coil via a commutator), a regulated dc generator (dc output from rotor coil with voltage feedback to stator), alternator (usually 3-phase output from stator winding with dc excitation on rotor coil via slip rings. When you check the voltage output from the stator, a good clean ENGINE ground for the test lead is best. above say 12. Specifications: Alternator 70 amps and no lower than 14. ( not good). We also could supply you with controller. An option may be to get a battery with a higher output of amps providing it fits in the tray as well as a trickle charger in case 55 watt bulbs take away from the stator to charge up the battery The E-charm also has a DC type CDI and most scooters with this type of CDI have no kick starter. 60 watts seems like quite a bit. There are test specs in the manuals (see sig) and you can check AC voltage out of the stator. I found [a problem] between the stator and the rectifier and [voltage regulator]. Bottom line--If you really want to get a feel for what the charging system does—there are some "seat of the pants" ways. Learn how to give them new life with our step by step battery reconditioning guide. Checking the stator is just a matter of checking amperage output when running and ohms between he phases - a service manual will serve you well. The generated stator flux interacts with the rotor flux, which is generated by a rotor magnet, defines the torque and thus speeds of the motor. High Output Charging System is rated 4. Many VFR R/R failures have occurred around 20,000 to 25,000 miles. In a Wound Rotor Induction Motor, does any voltage appear between the output terminals (3) of the rotor conductors? with each of the three phases of the stator, then we have a transformer. power pack, stator, trigger, switch box, regulator, rectifier, outboard motor parts, marine ignition parts, boat parts. Replaces the under performing Bosch charging system on BMW R Airhead's from 1970-1977. Get the best deals on Motorcycle Stators, Magnetos & Parts when you shop the largest online selection at eBay New Stator+Voltage Regulator Rectifier for 1999-2012. Voltage Regulator - 6 Pin for GY6 150cc Scooter - Version 11 - is currently on backorder. The output of the AVR drives a dc current If through the pole windings of the exciter, which are mounted in a stator frame. The Stator AC output does rise and lower with engine RPM. The rectifier also includes a regulator component as well, to offer outputs of both regulated DC and AC. The voltage regulator senses both the output voltage and the output current (from the stator winding). Our 2-coil magneto stator plate is a top-quality replacement part for most 70cc, 90cc, 110cc, and 125cc dirt bikes. There is no voltage regulation. All of the coil functions in the stator have one lead connected to the engine case to serve as a ground. Just make sure to profile your bike in our site before ordering to ensure that the stator is an exact fit as they are a non-returnable item. 50-70 volts AC measured between T1 and T 4 or 25-35 volts AC measured between T1-T2 and T3 and T 4. These generators are pretty sensitive. the speed of the cutting action (speed of rotation). 7 volts fully charged. So how do I check the output voltage? Im guessing you probe two connections (for each of the three coils) on ACV in the six. 3 FIGURE 31. 6 volts at 100% charge. 1 computes for a pulse-width-modulated (PWM) three-phase rectifier the dependency of the input voltage V AN max at a constant output voltage V DC load and constant output current I DC load provided the duty cycle δ is variable. or low AC output when the engine is hot. Diagnosing Alternator Charging System Problems Over the years Harley Davidson has used many different alternator systems. Turn the high beam of the bike on and run the scooter up to 3-4000 rpms. A category for Eletric powered planes. The regulator charges your battery at 13. Stator, rotor or input voltage unbalance causes unbalanced magnetic flux, which induces shaft current, and potential voltage between bearing and ground. Call us at 603-329-9901 to inquire about a custom rebuild on your old stator. All three yellow wires exactly the same. Will be trying a headlight as a parallel resistance test on Monday. 4 volts on a 150 scooter just like mine and of course the voltage output is regulated by the regulator/rectifier. Ideally I'd like to see a whole ring of them, as when parallelled up they produce more current. The stator A. Easy 50cc Scooter Stator Charging / Lighting Check : 139QMB. I drove it to my garage and turned it off. the extension is used to add more "wire loops" to the poles to increase the output amps. voltage: 6 volt max stator output: 6v - 32w wheels: 8" tires: 3. It converts the AC voltage from the stator to a DC voltage, and it regulates the resulting voltage down to approximately 14. Intermediate designs (c. Most of the 8 coil stators are rated at 20 to 22 amp and around 300 to 320 watt! Now on the charging systems on scooters the max voltage output is around 14. Ignition Coil -- The function of the ignition coil is to step up the voltage of the discharged current from the CDI, and send it to the spark plug. However the coils also reach magnetic saturation, and this limits the output somewhat. With the bike running and and the stator disconnected, I have measured the AC voltage coming from the stator from all three pins. Most of the time it adjusts the rotor field current to hold the voltage constant. Replace any burned or corroded connectors on stator and regulator/rectifier Check and repair any melted wiring. This allows you to run all types of lighting or other accessories that require DC power. Get the best deals on Motorcycle Stators, Magnetos & Parts when you shop the largest online selection at eBay New Stator+Voltage Regulator Rectifier for 1999-2012. Now this time your meter needs to be in VAC notice that is Volts AC for this test. If the stator coil fails any of these tests, replace the coil with a new one. You may still purchase now though and we'll ship as soon as more become available. More copper wire in the stator. Pull the fuse. Voltage (400HZ) RAP Input Current (amps) RAP Input Power (Watts) RAP Output Voltage Rap Sensitivity (MV/deg) RAP Phase Shift Degree SAP Input Voltage (400Hz) SAP Input Current (amps) SAP Input Power (Watts) SAP Output Voltage SAP Sensitivity (MV/deg) SAP Phase Shift Degree Rotor DC Resistance (ohms) Stator DC Resistance (ohms). One thing to add: it matters what coil goes on which side. Buy Drag 54A High Output Charging System Kit w/ Voltage Regulator Rotor Stator 11-16 | 2112-1205 Eastern Performance Aftermarket Parts Superstore. NOTICE: Before installing your new voltage regulator rectifier; Check the AC output of the stator. Now this time your meter needs to be in VAC notice that is Volts AC for this test. This should give you a power rating of just over 100 millijoules. If the stator checks out, you may have a problem with the voltage regulator/rectifier. Exclusions The 30-day warranty does not apply if the part is not verified by our technicians to fit your vehicle. The soul purpose of this device is to limit the overvoltages from a high revving engine. All electronic devices obey ohms law. The voltage regulator then maintains the voltage to the battery and provides power for additional electrical loads, such as the lights and ignition system, at a constant voltage regardless of variations in engine speed. 100% scheme: This scheme provides complete protection of the stator winding by injecting the signal between the stator winding and monitors it for change. Note that the rectifier bridge has a grounded heat sink and an insulted heat sink connected to the alternator output terminal. Next, test current output of each leg of the 3 phase alternator. The only problem is im not sure how to use it. Baja Designs offers high performance LED lights and light bars for off road trucks, UTVs, and ATVs. The generator, rectifier and regulator all have a bearing on each other and failure of one of these will almost certainly cause problems with the others. Diagnostic tool. The stator then is the stationary part of the AC motor. If your scooter doesn't appear to be providing charging voltage check the stator's output. With an 80 Watt Voltage Regulator to complete the set up, all PX models can be powered up to date. above say 12. This procedure is similar for all 50, 125, 150 cc GY6 Chinese scooters. Jesse, the stator in the picture is from a K5 CT90, so it is wound a little different than your CT110 stator. By Mikey61 I just wanted to make sure that the stator was putting out the correct voltage and to see if it had any signs of life in it. Test 1 - Stator Voltage. One thing to add: it matters what coil goes on which side. I explain how to test and replace the stator, fuse. Located within the primary chaincase on the left side of the engine, the alternator is difficult to visually inspect. General Scooter Chat. Also, check the trigger coil too. Stator part number is 5CH814100000. You can start the bike and put a voltmeter between the leads to at least see if you're getting anything. It looks that I have an electric problem which makes my rectifier regulator very hot which leads to stopping the bike engine and then it won't start until it becomes cold. The rectifier also includes a regulator component as well, to offer outputs of both regulated DC and AC. The generated stator flux interacts with the rotor flux, which is generated by a rotor magnet, defines the torque and thus speeds of the motor. Your equipment needs for this are very simple. Learn how to give them new life with our step by step battery reconditioning guide. The voltage regulator then maintains the voltage to the battery and provides power for additional electrical loads, such as the lights and ignition system, at a constant voltage regardless of variations in engine speed. Troubleshooting Battery Charging Issues Regardless if the charging issue is overcharging or not charging at all, the #1 cause of all charging issues is the battery often due to improper style and/or charging neglect. Designed for D. The Stator electric scooter is stylish, functional and innovative. Until recently the easiest way to tell the systems apart is by looking at the plugs that connect the stator to the regulator. However, they are more onerous than dc tests. You shouldn't rev the motor over 2000 RPM in neutral (unless you want to buy a new powerhead. This indicates that a fault is preventing the energizing of the stationary exciter field and that only the per. Anthony’s preferred solution however, is to repair old stators by replacing the LT coils and pick-ups. 3 FIGURE 31. 1x Voltage Regulator Rectifier. Heavy duty voltage regulator rectifier. Could someone please give me the correct stator output for a 150cc 4t scooter. 5 volts while trying to start, which is not enough to fire the CDI. The spark come from the CDI. This particular avr uses the input of 120vac from the stator and apparently rectifies it for use as an output to the brushes to control rotor field current and therefore voltage output. Honda Goldwing GL1200, GL1100 and GL1000 Stator Quick Output Check. Connect a voltmeter between battery terminals. Normal output voltage is either 240Vac or 120Vac. The diagram above illustrates a three-phase generator. Simple Analysis for Brushless DC Motors Case Study: Razor Scooter Wheel Motor At first glance, a brushless direct-current (BLDC) motor might seem more complicated than a permanent magnet brushed DC motor, but the purpose of the following is to emphasize the simple analytical techniques that can be used to understand the operation of a BLDC. The voltage output is governed by the amount of current in the field circuit, and is controlled by the Voltage Regulator. By Mikey61 I just wanted to make sure that the stator was putting out the correct voltage and to see if it had any signs of life in it. 58 Volts AC RMS Voltage, running 1,100 RPM. for a batteryless system. 150cc gy6 too high current from stator. I found a Dodge "78" regulator and connector for it on Amazon. Checking alternator output using an ammeter in series with the charging system should be done only by an auto-electrician. On most GY6 stators, the CDI-power wire is the Black/Red wire coming from the stator – with a “bullet” style connector. A rectifier bridge connected to the stator windings contains six diodes, and electrically changes the stator A. but this work has all been done! A stator is made by component manufacturers like Denso, and they are just like electronics components. Learn how to give them new life with our step by step battery reconditioning guide. I have skinned the insulation back enough to connect a couple of meter probes. Battery manufacturers disagree on exactly what this voltage should be, but as long as it's above around 13. If I read the stator voltage from the white wire while disconnected from the rectifier it reads 26v ac. i was wondering is that good. 4 volts at 75% charge is necessary to properly test the system. 8 when in new condition have you tried checking the battery after the battery has been charge 24 hour if the reading is the same reading. The stator puts the voltage out as AC volts and the voltage regulator/rectifier converts that over to DC. or low AC output when the engine is hot. Stop the engine. 08 KLX 450r stator output. The test I ran a few years ago demonstrated that the 3-phase voltage from the alternator continued to rise with RPM but the peak DC output from the R/R module hit a maximum output of 14. Rated 3 out of 5 by Boomer1143 from Not as good as I had hoped for. Most of the time it adjusts the rotor field current to hold the voltage constant. The regulator controls the DC voltage output of the rectifier so that it will charge, but not overcharge, the battery. 50 x 8 max speed: 52 mph click for the VB1T electrical page : Thanks to Daniele Campanella for the. , check at stator wires 3 and 4. The voltage regulator then maintains the voltage to the battery and provides power for additional electrical loads, such as the lights and ignition system, at a constant voltage regardless of variations in engine speed. Faulty voltage regulators (where applicable) causing alternator output to increase with increasing engine speed. Take Off pan cover and visually inspect for metal shavings and melted insulation on wires or melted zip ties, 2. Electrical current from the magneto stator goes to the rectifier and a set of diodes that convert the AC current to direct current (DC). It converts the AC voltage from the stator to a DC voltage, and it regulates the resulting voltage down to approximately 14. One coil is the trigger coil. Shop our complete selection of parts and accessories including the Moose High Output Stator - 2112-0522. Your outboard stator is the "powerhouse" of your outboards ignition system. It concerns me that the stator output is out of spec, and I cannot isolate the problem to either the stator or the flywheel. If voltage is less than 28 volts, stator is probably faulty and should be replaced. 4 volts/22 amps somewhere around 2200 RPM regardless of load applied. Honda Goldwing GL1200, GL1100 and GL1000 Stator Quick Output Check. It concerns me that the stator output is out of spec, and I cannot isolate the problem to either the stator or the flywheel. 5 Amps, 3-stud compatible, and comes with 3 wire leads. I think that to voltage output of the Stator is limited by design so as to not over charge the battery, that is to not exceed 14. Stator output is more of a square wave and is intended for Ford electric chokes and I have ued it for my Holleys and Carters with absolutely no troubles and I am up in the cold land. The charging coil is one coil on the stator that produces the 6 volts needed by the condensor, C1, inside the CDI box. But you can’t say it’s exactly 12V. 4 volts/22 amps somewhere around 2200 RPM regardless of load applied. 125cc 6 Coils Scooter Parts Cg125 Magneto Stator Coil Price For Honda , Find Complete Details about 125cc 6 Coils Scooter Parts Cg125 Magneto Stator Coil Price For Honda,Magneto Stator Coil,Stator Coil,Magneto Coil from Other Motorcycle Electrical Systems Supplier or Manufacturer-Chongqing Xiongbang Automotive Accessories Co. It was a bad pulsar coil. If the battery voltage reads 10 volts, the charge current will read approximately 10 amps. Now the heat sink is much larger and can handle more than the stator puts out. The stator windings are assembled on the inside of a laminated core that forms part of the alternator frame. The faster the engine, the higher the voltage. Positive voltage flows from the stator through the the yellow and white wires. 1x Voltage Regulator Rectifier. However, they are more onerous than dc tests. High Output Stator + Hp Cdi + Ignition Coil For Yamaha Raptor 660 2001 Yfm660r High Output - $99. Thank you for watching. Baja Designs offers high performance LED lights and light bars for off road trucks, UTVs, and ATVs. Alternator Rectifier Unit. charge voltage and a charge voltage regulator. XR 650R High Output Double Wound Stator. DO NOT let the engine run any longer than necessary to detect charging. In use, 1 millivolt equals 1 amp. Since the prototype went viral in late 2018, engineers have been working to bring the product to production. Engine fails to run and has no spark. Each output is a single-phase voltage, just as if the other did not exist. Once this threshold is reached, a higher rated alternator will do nothing unless you are also running 70 amps of driving lights. At this time, with 12 volts on both sides, the lamp is out. VFR Regulator/Rectifier Failure. This is his take on it and it makes sense. After this, the alternator’s stator voltage is solely used to charge the battery and power other electrical equipment. Use a #1 Phillips, adjust “Voltage” dial clockwise to increase the charging voltage. In a generator, the stator output. When I tried to restart, it was dead. In a single-phase generator, the stator has a number of windings connected in series to form a single circuit across which the output voltage is generated. Perform the cranking voltage output test!! Resistance readings are still useful for some work, so here they are for 61X and 62T: 61X: charge coil, brown / white trace to ground / black: 365 +- 10%. Output voltage from the stator which goes from the stator to the cdi then to the battery should be approx. Other RC Parts & Accs-20 Variac Autotransformer Voltage Regulator Powerstat 0-130V Output USA 110V Amp qqlqzx7852-save 35% - 70% off - www. Thank you for watching. technician B says that an alternator equipped with a delta wound stator produces more maximum output in a wye-wound stator. The number that it is hard to nail down as rewind guys in the minimum ohms you should see even when the coil is cold. One opinion says that if the engine is starting and running fine (without the voltage regulator attached) then the problem is not due to a bad stator. The original part is WAY too expensive here (more than 600$), so I HAD to invent ways to solve t. Charging System/Battery Charging Status Inspection NOTE Warm up the engine, and install a fully charged battery. The yellow wire(s) go the rectifier/regulator which is usually behind the headlights. I found a Dodge "78" regulator and connector for it on Amazon. You should also check the continuity to ground for each stator lead with the key off and the leads disconnected. There is no 12 volt *ANYTHING* in your ignition system. Now the heat sink is much larger and can handle more than the stator puts out. The charging system on a Harley-Davidson motorcycle consists of the battery, the voltage regulator and the alternator. The boost time is selectable to either 1. Voltage reading should be minimum 26 VAC/3 000 rpm. They are all good alternators except the last one, which has a known defect. While you are ridding your motorcycle, the charging system provides electrical power to run electrical components and accessories. That kind of overvoltage can take out an expensive headlight, so as a safeguard, the power from the stator is routed into the voltage regulator. 00 fix, so try these ideas and see if it works. SUZUKI GS500E CHARGING CIRCUIT TEST J. Voltage Output Test. Consider a three phase squirrel cage induction motor whose stator has three windings displaced in space by 120. The output current of an alternator will depend on the resistance of the windings, the excitation current, the rotation speed, the output voltage, the load resistance, the magnetic saturation of the cores, the battery voltage if the load is a battery There are a lot of variables to take in. The alternator, in turn, is made up of the rotor and the stator. 99 1987-1988 Yamaha YFP350 Terrapro Pickup Coil $34. You need to check ac output from the stator at the. Voltage Regulator for 6 Poles Stator 150cc. Troubleshooting: Primary Coil: Check for 0. • Place your meter’s black (-) lead to a solid ground. Gy6 Ac Cdi Wiring Diagram >>>CLICK HERE<<< here is a cdi diagram its ac but will work for dc to help you understand what wire For the gy6 and my gk-28 ( roketa) I try to send some pics later if It would help. If three equal readings, all higher than 75 Volts AC, the stator is good, go to 14. A regulator ensures that the output voltage is properly matched to the battery voltage as engine speed varies. Faulty voltage regulators (where applicable) causing alternator output to increase with increasing engine speed. The motor does not seem to charge much, though I have checked out the stator and replaced the rectifier. The 75 VAC from the stator is not reaching. It's called the double yellow because there are two yellow wires at the junction box and voltage regulator. Even with the stator AC voltage in range, you can still have low output on the regulator with the regulator being O. The stator puts the voltage out as AC volts and the voltage regulator/rectifier converts that over to DC. get the battery tested it will tell you the condition on a load test. They are thick wire small number of turn windings for lower voltage and bigger current (up to 50W say). It might be also valid for other brands. All tests need to be done by back stabbing the connector terminals, do not start or disconnect the rectifier while the bike is running or you can damage the charging system. Has no spark, I have replaced ignition coil twice, tested all connectors and even disconnected kill switch to make sure that was possible problem. Anthony’s preferred solution however, is to repair old stators by replacing the LT coils and pick-ups. 5%) of excitation power. Most SI series AC generators use a 14-pole rotor. If the power is used for loads other than the ignition system, such as charging a battery, there will be a rectifier to change the AC to DC and a voltage regulator to make the voltage constant. The electrical output from the generator is therefore an alternating current (like the mains electricity). You should also check the continuity to ground for each stator lead with the key off and the leads disconnected. 8V for a split second. check the voltage when running at the battery, should be around 13 volts. The peak AC voltage has to be higher than that by two times the value of the diode forward voltage at the output curr. found on Bajadesigns website: Motorcycle Stator Chart HONDA Stock Output Rewound Output Part #: Notes: XR/CRF 50/70 0 100W 30-0110 Replacement stator XR/CRF 80/100 0 110W 30-0112 Replacement stator 2003-05 CRF150R Kickstart 0 110W 12-5999 Stator rewind 2006-ON CRF150F Electric Start 65W 110W 12-6. QAZAKY Magneto Stator AC Ignition Coil 8 Pole 5-wire Replacement for GY6 125cc 150cc ATV Scooter Moped Go Kart Buggy Quad 4-stroke Pit Dirt Bike QMI152 QMI157 QMJ152 QMJ157 TaoTao Roketa Buyang Sunl 4. If voltage is 28 volts or more, stator is OK. You should get a "float" voltage reading of somewhere between 13. Magneto Coil - X-PRO ® 8 Coil Magneto Stator for GY6 50cc Scooters Moped. The rectifier actually converts the current from AC to DC, while the regulator keeps the power level (voltage) from going above the 13. They can fix it by putting in an oil line that gets more oil to the Stator. • By an auxiliary winding in the stator. Mike demonstrates a full charging system test including ohms resistance between fields, ground continuity, AC voltage output, and of course DC voltage to the battery. Price Low and Options of Cheapest 11 Poles Coils Ignition Stator Magneto GY6 125cc 150cc Engine Moped Scooter ATV Online from variety stores in usa. If the resolver input voltage is not high enough, the output voltage will be low.