Intruder 1500, 1999, why can't I find the fuel

You dont have any fuel shut off valve because you have fuel injection which uses an electric fuel pump inside the gas tank all you need to do is buy a fuel additive called stabil and add the appropriate amount to the gas and you will have no problem. Make sure you fill your tank all the way up. because if you leave it like half way the upper half gets condensation and moisture . so just fill it up add stabil take out your battery and bring it in the house so it stays warm and dry and you will be good to go in the spring.