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Thank you Simon. Are the Hot Cams or Pro X shim kits any good?
For some reason the bottom of picture wouldn’t load up.
Mills River, North Carolina.
Out and about on my Aprilia 250 last night.Maybe a little quicker warm up and low speed torque. Nothing more.
BoosterPlug if you are interested. Hi Jim,
Thanks for the positive feedback – much appreciated.
I’m sorry, but have never developed the BoosterPlug for any of the Hyosung models, and they are unfortunately not on the list of future developments.
Have a nice day 🏍
—–Oprindelig meddelelse—–
Fra: info@boosterplug.com
Sendt: 17. juli 2022 20:00
Til: BoosterPlug Support
Emne: BoosterPlug question from websiteName : Jim xxxxxxx
Mail : jimxxxxxxxx
Comment : I used one of your Boosterplugs on a KTM Duke 390 and was really impressed by it. Can you make one for a 2015 Hyosung GT250 (v-twin) EFI? I believe it is a Delphi system.I did the 1” up, and 1” back without any wiring/cable/ hose issues.https://roxspeedfx.com/collections/adv-dual-sport-dirt-bike-handlebar-risers/products/1-1-4-block-offset-risers-for-7-8-or-1-1-8-handlebar I paid a lot less for mine though.
Jul 25, 2022 at 7:02 PM in reply to: Hyosung Owners Picture Gallery: Show Off Your Bike Photos & Mods 📸 #8098
I cleaned up the gas evap canister and associated plumbing, removed a plethora of stickers off of the frame, replaced the perfectly fine stock air filter with a fresh K & N that I found on super deal, I put the almost brand new carbon fiber muffler from my 390 Duke onto the stock headpipes. I then went for a nice evening ride.
No bike action today, but we did pick peaches.Pull the carbs, remove every jet, blow carb cleaner through all the ports. Pilot jets are probably cheesed up as they have the smallest orifices.
With the giant gas tank it is a bit of a stretch to the bars. I wanted to bring the bars back and up about 1”, 1 1/4”. Rox Risers fit perfect and has the right feel now.

I am not overly keen on the stock headlight shroud and it makes the headlight look even larger. I unscrewed the 4 screws holding it on and toned the headlight profile down a bit with a carbon wrap. 
Well done!!👏👏
I weighed my GT250 this morning. 163 kg (360#) with half tank of fuel.
Nice pictures, I can’t believe you, me & you could be brothers in a former life, I got a ktm 390 as well, what are the odds on that?
Huh! Well my Dad did travel around the world a lot when he was in the Army!😉 The Dukes are awesome.




400ml + – 2.5ml standard weight is 5w.
Thank you Simon!👏👏
Well there it was in plain sight! Thanks Marcel. The search seems to work fine.
Jul 10, 2022 at 9:41 PM in reply to: Hyosung Owners Picture Gallery: Show Off Your Bike Photos & Mods 📸 #8059Thanks Marcel. I have only seen pictures of these, never saw one in person. I had every intention of putting a 7” round headlight on it, but now I don’t mind these headlights at all after seeing it in person. Plus following my wife home, she said it was very bright, so I will leave that alone.
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