Hi everyone , im from Brazil , sorry for my english. Later i lift the tank for swap air filter. My fuel gauge only mark full tank to half tank. When goes under half tank , the fuel gauge goes to 0 gas and the reserve light comes on. When i fill up the tank , the fuel gauge show full gas , and work until under half tank. Original levers , clutch swtich working ok , the bike doesnt start without pushing the clutch lever. Some ideas ? Thanks u all.