sooooo many times i see where the high speed needle inlet gets a small particle stuck in there and it will wreak havoc on fuel supply

take out hsn , flush system and reset needle to 4 turns out from all the way in , if that doesnt help then yes i would guess either a) front bearing or b) tank/lines (fuel supply)


tip: before you ever hook up your lines , flush out complete fuel system from blowing on the pressure line and having the line that connects to the carb inlet either off to the side or even easier laying in a rag so it doesnt spill everywhere


novarossi carbs have a very fine passage way for fuel to enter through the hsn housing