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Upgrade Regulator Rectifier [Big Heatsink] – Hyosung GT/GV 125 250 Carb Models
๐ก๏ธ THE RELIABLE CARBY CHARGING UPGRADE
Don’t gamble with unverified clones. Hyosung’s original “tiny silver” regulators are prone to overheating. Our uprated unit features a larger heatsink and verified internal polarity to ensure your battery stays charged and your stator stays protected for longer.
- โ Thermal Management: Significantly larger heatsink for superior cooling over OEM.
- โก Stable Voltage: Reduces excessive flickering and prevents battery “cooking.”
- ๐ Plug & Play: Correct OEM-style connector for all “Carby” 125/250 models.
- ๐ธ Visual Guides: Includes real customer photos showing correct mounting and orientation.
GT125, GT125R, GT250, GV125 (up to 2018), and GV250 Carb.
โ Not for EFi models.
Description
A healthy charging system is essential for the longevity of your classic Hyosung. The original, undersized silver regulators were notoriously fragile, often running too hot and failing during long rides. This Uprated Regulator Rectifier is a direct-fit performance replacement designed to address the thermal flaws of the original outsourced units.
๐ง Why Our Uprated Unit Beats the “Cheap Clones”
While similar-looking units exist on generic marketplaces, they often arrive with incorrect pin-outs (polarity) that can instantly short your harness. Every unit supplied by HyoRiders is verified for Hyosung-specific wiring and polarity.
- โ Advanced Cooling: Increased surface area prevents the thermal runaway common in the original silver units.
- โ Electronic Protection: Delivers steadier power both at idle and high revs, helping older bikes warm up faster.
- โ Real-World Proof: Check our product gallery to see real-world mounting examples and orientation tips from the HyoRiders community.
โ ๏ธ MOUNTING INSTRUCTIONS: Stop the Water Ingress
Because this unit is physically larger than stock, mounting orientation is key to protecting it from the UK weather. Check the customer pictures gallery above ^ ๐ธ for successful mounting photos.
HOW TO INSTALL FOR LONGEVITY:
- โ Connector Faces DOWN/REAR: Always point the plug towards the ground or the rear wheel. This prevents rainwater from entering the plug.
- โ Do NOT face Upward: Never point the connector at the sky; standing water will cause early failure.
- โ Do NOT face Forward: Ensure the connector isn’t blasted by spray and salt from the front tyre.
๐ Installation & Testing Procedure
- Test Before Finalising: After fitting, check DC voltage across the battery. You should see 13.5Vโ14.5V at 5,000 revs (๐โกThis is from the Hyosung service manual). If readings are unstable, disconnect immediately and check wiring.
- Secure Fitting: Use rubber-lined clamps or a cushioned bracket to avoid vibration fatigue on the casing.
- Inspect after 50 Miles: Re-check all mountings and connectors for movement or wear.
๐ Model Fitment:
Fits GT125, GT125R, GT250, GT250R (All Carb years), GV125 (Up to 2018), and GV250 (Carb models).
Got questions about this product? Use our [Contact Page]
Additional information
| Weight | 1.1 kg |
|---|---|
| Dimensions | 20 × 20 × 5 cm |
14 reviews for Upgrade Regulator Rectifier [Big Heatsink] – Hyosung GT/GV 125 250 Carb Models
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GARAGE PICKS // ADD TO BUILD
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£9.99 -
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2003-2009 Models – Rear Brake Stop Light Switch – Hyosung GT & GTR Models Only
£9.99 -
Aftermarket Rear Brake Stop Light Switch – Hyosung GT & GTR Models Only
£9.99
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Independent Shop supplying ride enhancements and quality spares with fast dispatch. Need assistance? Access our workshop guides, manuals, tutorials or drop by the forums for troubleshooting help.
Peter –
On this regulator bike working much better , no problem with idle.
Thanks Marcel !!!
shane –
Only brought this since I’ve heard the stock ones on the bike aren’t that reliable
Tom –
This part is a must i have the coils the caps and irridium plugs and will be getting the stator and the bike is totally diffrent it start straight up from cold And it really seems to have a kick up its arse now and for the price it really is worth the money
anthony harris –
Iv only ordered this as the old ones are rubbish
Martynas –
Works perfectly
Barry white –
Got my Regulator rectifier as promised on time today very fast and reliable service will be ordering again and a big shout out to Marcel who has helped talk me through it all will post pics on hyosung website thanks
Karl –
Very good piece of kit. Had to replace my whole electrics so this made sense to go with new stator that my old electrics fried.
Very quick delivery and superb service. Will definitely purchase more items from here. Much better stuff than stock
Jed –
Erratic idle fixed works great cheers!
Torbjorn Wold-Hansen –
This is an absolute must have for your Hyosung! Had it for around one year now, and it works great.
micky m –
received my upgraded regulator from marcel today for my gt250r fantastic quality ,great service highly recommended micky m blackheath
Martin –
Erratic idling completely sorted now I have replaced this. Excellent advice from Marcel as always, would recommend this to any GV125 riders
eman ellul –
Just upgraded to the uprated coils, the uprated regulator, the uprated stator and ngk caps with iridium spark plugs. I have to say it made an amazing difference, the bike almost no longer needs choke (less than a minute and only on first start in the morning), acceleration has improved significantly and my bike is now charging (which was my original problem :p). Very happy with all items ๐
Bike is a 2003 gv250 carby model
Chad –
Arrived super fast. Plugged in my 125p started the engine, took it out for a ride, amazing indeed, instant noticeable improvement to start up, idle, throttle response ๐ค perfect.
Thanks.
Reiss –
Installed to my Hyosung GT125R, immediately noticed the dashboard lights are much brighter, the head lamp is brighter, it starts quicker and generally feels a lot smoother to ride. Cannot recommend it enough.
Thank you. ๐