hi all ive just bought a cagiva planet 125cc,,the owner said the bike has been stood about 3 months ,i rode the bike home and it was jerking a little bit and wouldnt idle properly when i did get the bike home,i tried starting it ,,it wouldnt start i checked underneath and found alot of oil where the exhaust meets the engine,,i checked the oil level in the bike and was completely dry,,can anyone help me please,,the bike still doesnt start thanks