Reply To: Carburetor issues? Need help – Hyosung GV250

[♠️ M77]

Hmm,
– This appears to be carb related or the bike is being “choked on a leash” for some reason.

Can we confirm what size jets are on your bike both Pilots and Mains ?

And turn your mixtures downwards (clockwise until they stop) – — COUNT the number of full turns.  It’s important,  then go back to how it was.

Ie. Front is 3.5 full turns OUT   and   Rear is  3.75 (3 and 3/4) turns OUT , so we can assess the mixtures.

Confirm:
– Are pod filters being used?
– Cracks on the rubber pipes holding carbs to engine heads
– new air filter?
– CR8E new plugs   (if  CR7 or CR9 = bin them)  (If  “IX” branded plugs = bin them , use stock CR8E  or CR8E LASER) and beware of fake NGK’s .

Electrical = Do these tests below and report back to this topic with your figures:

Rectifier – How to Test Stator , Battery , Regulator – GT125R Carby

If we get more indepth , we can find out what the bottle neck was.

Engine  (last war)
– Compression test
– Leak test (little o-rings inside the rubber pipes can cause all kinds of issues , so advised to get fresh ones)
– Slipping clutch?
– Valve Clearances   (too tight = lower speeds) or too loose (lower power)