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250W DC Upgrade Kit Stator + Series Regulator for Honda XR 600 R 1985-2000 | OEM Repl.# 31120-MN1-681 / 31400-MN1-680
250W DC Upgrade Kit Stator + Series Regulator for Honda XR 600 R 1985-2000 | OEM Repl.# 31120-MN1-681 / 31400-MN1-680
This kit REQUIRES a DC powered CDI box (not included), the original will no longer function with this conversion. We recommend using the Ignitech DCCDIP unit customized for the XR600R. You can source this from Spectrum Moto here:
https://www.spectrummoto.com/product-page/xr600r-cdi-programmable (SELECT DC VERSION)!
Battery condition is extremely important. No stator or voltage regulator can work correctly with a bad or weak battery. Always fully charge your battery before performing any charging system tests or replacing parts. If there is any doubt, have the battery load tested or replaced.

Details
Details
Brand new aftermarket 250W DC upgrade kit stator + series regulator
- Direct replacement to your original unit
- Plug-and-play, direct fit, easy installation
- The quality exceeds the OEM equipment
- Connectors included
- All products shipped are tested
This kit REQUIRES a DC powered CDI box (not included), the original will no longer function with this conversion. We recommend using the Ignitech DCCDIP unit customized for the XR600R. You can source this from Spectrum Moto here:
https://www.spectrummoto.com/product-page/xr600r-cdi-programmable (SELECT DC VERSION)!
Stator:
- Highest grade of lamination materials
- Highest grade of copper winding, resistant to 200 degrees Celsius
- Rubber grommet included
Series Regulator:
WHY USE SERIES ENHANCED TECHNOLOGY?
- Runs much cooler than the Shunt and MOSFET voltage regulator rectifier.
- Power only flows through the electrical components when the battery is charging.
- Allows the stator to have lower current flowing when not used, extending its lifetime.
- The regulator is easier to mount because it’s smaller than the OEM one.
With enhanced technology design
This product is an advanced technology that lowers operating temperatures for extended longevity and better performance than the OEM part.
THE SERIES VOLTAGE REGULATION TECHNOLOGY
RMSTATOR’s new SERIES voltage regulator brings better reliability and charging system performance. A SERIES regulator is a significant upgrade over typical shunt type voltage regulators. A shunt regulator controls battery voltage by grounding the stator coils to dissipate current as heat, rather than sending it on to the battery. SERIES regulators control battery voltage by intermittently disconnecting stator coils from the regulator electronics, limiting current flow through the unit and on to the battery completely. This results in lower regulator and stator temperatures, more accurate voltage regulation, and increased reliability of your charging system components.
Brand new series voltage regulator rectifier
THE ULTIMATE SOLUTION TO YOUR REGULATOR RECTIFIER PROBLEMS!
It is time to update or replace your voltage regulator with the advanced series type. It runs cooler than all OEM, Shunt or MOSFET, diode style regulators. In addition, this rectifier has overheat protection, rather than burn up it will simply turn off for a while and cool off.
- Higher grade of electric components
We even include the opposite connector (main harness side) as we know these are often melted / corroded / defective and a major cause for repetitive electrical issues.
All item pictures are accurate, if in doubt, do not hesitate and compare our item to your original part.
Specifications
Specifications
Stator:
Dimensions:
Interior diameter: 54 mm
Exterior diameter: 115 mm
Thickness: 15 mm
Length of wires stator to grommet: 140 mm
Length of wires grommet to plug: 900 mm
Other specifications:
Number of wires: 3
Number of plugs: 1
Number of pins: 3
Number of poles: 18
Wire to wire resistance:
Alternator: Yellow to Yellow = 0.5 ohms +/-20%
Alternator: Yellow to ground = O.L
Series Regulator:
Dimensions:
Width: 84 mm
Length: 90 mm
Height: 32 mm
Fixation holes center to center: 69 mm
Other specifications:
Number of plugs: 2
Number of pins: 5
Minimum Charging Voltage: 14.5 V +- 0.5 V
Maximum Charging Current: 50 A / 500 W
Open Circuit Voltage: < 15 V
Operation Temperature: -20° to 85°
Interchange Part Nº
Interchange Part Nº
- 108893-R00
- 31120-MN1-671
- 31120-MK2-005
- 31120-MN1-681
- 31400-KA2-641
- 31400-MK2-681
- 31400-MN1-670
- 31400-MN1-640
- 31400-MN1-680
Installation
Installation
Before installing your new stator + series regulator 250W DC upgrade kit
- Check the AC output of the stator
- Replace any burned or corroded connectors on stator and regulator rectifier
- Check and repair any melted wiring
- Use hi-temp dielectric grease on all connectors
Download our complete installation instruction (PDF)
Our stator might have a different wire color code than your original part.
All the wires are installed in the correct order; please do not change any of the wiring configurations.
This stator is designed as a direct plug-in replacement and should be used as such.
When bolting stator in, always use locking compound.
If our stator includes a pickup coil, always make sure the air gap is correct upon installation; we suggest as close as possible but no less than 0.010".
Warning:
Risk of electric shock. Disconnect the battery before servicing.
Ensure proper installation by a qualified technician to avoid malfunction.
Vehicle Fitments
Vehicle Fitments
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