[Rudipides250]

Since the fuel tank holds 3.4 gals of fuel, you could always let it run out of gas and then try putting in a measured 3.4 gals and see if the fuel level is up to the rim of the gas cap like I would expect. If the gas isn't leaking somewhere then I would think this would let you know nothing is wrong and gas is simply filling in hoses or areas of the tank slower than you are putting in the fuel.

Just a non-motorcycle expert's though.

Thanks
Rudipides250