Click below to Select Sportbike Model
Voltage Regulator Rectifier for Motorcycles
High quality oem replacement voltage rectifier regulator keeps its temperature down using quality circuits. These are a plug and play replacement parts. What regulator rectifier does is it produces power to charge a motorcycle battery idle and running speeds. The regulator that is part of the regulator-rectifier is the part that regulates the output constant voltage of 14.5 from the battery. The rectifier part of the system converts AC phase to a single negative and positive 14.5 DC output. Now why a regulator rectifier would go fail is engine heat, or a bad ground causing faulty voltage to short out and run hot.
Battery not keeping a charge
Speedo / Tachometer speeding needle readying flickering or sticks
Does your sport bike sputter at 10k-15rpm
Answer: Your motorcycle rectifier has gone bad.
How to test:
Make sure the battery is in good condition, fully charged. Set the meter on DC volts in the range of 10-20v, start engine and rev to ~4000rpm, volts should be approximately 14+.
If this fails then:
Remove and check the pin connector between the alternator and r/r for any melted/overheated connections, if these are good.
set the meter on AC volts (50-100v), start engine and check volts between 1-2, 1-3,2-3 wires an about 4000 rpm, you should get about 50-60v on all 3 readings.
If any are low the problem is with the stator, if all 3 readings are good the problem is with the rectifier. doing a test on the rectifier is a waste of time.