Spark plug options hyosung gtr 125 (2016)
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Hey,
In honesty Laser Plugs or CR8E are the best ones for the RC bikes (newer shape models)
The old gen 125R are a little less common now (it’s the ones with grey engines and old shape panels) = They don’t mind using Laser, IX, CR8E.
Dare I say with my years of experience servicing hyosungs here in Yorkshire, i can flatout tell you the new gen 125RC are the hardest things to start if the following applies
- Clearances out of adjustment (any engine that hasn’t had it done in last 4,000 miles has to have it done)
- Compression low
- Carbs fouling
- Clutch switch bad (don’t bypass it)
- Bad coils, bad caps (very common, yes both the coil and cap take each other down)
- rusty electrics.
As you have a 2016 RC , i would honestly say Laser or CR8E is the best way to go. They don’t like “IX” (blue box) ones because they are either good for 5k miles (peak) then they wane fast , or if they foul or get annoyed, they don’t perform well in the RC engine and henceforward starting nightmares. I’ve not seen an RC have a good day with bad plugs but i have had more faith in the old grey engines to keep on going even if it felt like it has 1 cylinder left lol.
I have digressed a little bit as purely my opinion , i’d say stock CR8E or Laser grade. Though, the stock ones would do just fine, just make sure the coils and caps are in good spec and the battery is 14v idling , 14v at 5k revs and ofcourse a happy carb 😉
Though , i’m thinking of trying VPOWER NGK plugs , on a spare engine head just for fun and see what the A/F ratio is and what temps the exhaust pipes make from ice cold vs stock plugs just to see if i can move up from laser ones.
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- Many thanks for the detailed response Marcel. Overall, she’s as clean as can be expected for a bike just registered around 3 months back, and approaching 1k miles. Just trying to upgrade a few stock items. New regulator from the shop and just done oil, silkolene pro, and filters etc, however haven’t had the clearences completed or checked. I’ll order the laser plugs from the shop tonight. Out of interest, anywhere locally that would check the clearences, and what cost is involved? Location. Darlington, Co Durham.
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Hello all newbie to the group here and wanted some advice on upgrades so basically I have a 2008 gt125r completely standard and have been looking through the online shop but unsure what parts will fit my bike km wanting to upgrade whatever parts I am able to replace e to and in overall performance can anyone advice in what parts are usable on my model before I go buy stuff that I’m not gunne end up fitting as there not compatible appreciate any help or advice given thanx
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Hello all newbie to the group here and wanted some advice on upgrades so basically I have a 2008 gt125r completely standard and have been looking through the online shop but unsure what parts will fit my bike km wanting to upgrade whatever parts I am able to replace e to and in overall performance can anyone advice in what parts are usable on my model before I go buy stuff that I’m not gunne end up fitting as there not compatible appreciate any help or advice given thanx
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The parts on the site mainly have a “swap and go policy” , so if i mention your bike and its year , it is guaranteed.
Ie. Air Filter from K&N with Jets to fit GT Carb 125 – That would mean every GT125 up to 2019 as they all have the same airbox and same carbs.
But i totally understand because i sell two types of stator kits , 1 stator kit is for old gen bikes and it will not work on RC 125 bikes because Korea “on the sly” changed the flywheel. It took us 6 months of testing our bikes and research to know the best flywheels and stator kits are compatible with the RC 2015
RC = Any GT 125 that has an LED rear and slim panels at the back (from 2010 to 2019)
GTP = “P” denotes the naked version of the RCOld Gen = old grey engines from 2003 to 2007 and old body plastics at the back and a massive curvy back light.
Send me an email , if you want sales advise for anything on this store.
For general help on fitting parts and troubleshooting, just make a new topic anytime on this forum , myself and others will chime in 🙂 – Some answers help other new riders who may fall on your topics too.
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