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North UK

It should show how much psi it is, as Hyosung’s can behave iffy to start if compression is low but it’s good to be extra sure!

Get the airbox off ,  get a can called “Engine Easy Start” spray   (Starting Spray)  , then as the engine cranks , spray starting fluid in the throttle bodies , keep a distance as it might spit some back out , but if it roars for 5 seconds , we might have to look at fueling again.

And although I assume you know how to get error codes from the ECU,  try and trick the ECU to see if it has any new stored codes that are preventing it from starting

// Meditation doesn't mean you have to sit still....