Reply To: Hyosung GT125R Carb Carburetor problem
Do not worry , keep the original carbs, nothing on the market beats genuine mikunis. And they have more than enough power for a 500cc those carbs even a small GS Suzuki 250E bike.
Right, let’s narrow this down bit by bit.
How good is the sparking ? what happens if you change front and rear coils ?
Fitted fresh CR8E plugs ? (it is to rule out plug faults too)
Keep HT caps in mind , the oem HT caps are always sketchy.
And what jets (pilots and mains are inside the carb?)