Forums πŸš₯ PIT STOP πŸ”§ Hyosung Technical Help [Tutorial] How to swap Carb Main Jets – Hyosung GV & GT 125/250 Reply To: [Tutorial] How to swap Carb Main Jets – Hyosung GV & GT 125/250

#1887
♠️ MARCEL
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Nov 30, 2017
@mf448kxn6
North UK
GTR
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im guessing doing upjet is if you having a new exhaust upgrade or air filter performance

Stock machine = Upjet it anyway (the rear is a little cooler as fuel has a cooling effect) & should run a little better in 5th.

Modded machine -> K&N Air FilterΒ  orΒ  Stainless Exhaust pipe or End CAN = upjetting mandatory ofcourse.Β  Modded bike ? = Baffle runs better with baffle in than without baffle on any 4T (& quieter anyway! πŸ˜‰ )

Laser or IX plugs help a lot.Β  Β If the plugs are “coffee brown”Β  the bike is happy!

The stock ones are too sooty & a nightmare for UK winters, usually chuck em first thing lol.

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