You won't get very far along the patio with your engine trying to run without one of these fitted.If you don't know what it is for, or where it should be fitted, take up kite flying - it is a lot simpler.If on the other hand you like burning your fingers, getting moaned at by the wife, ("put that smelly thing away!") then you will know that when this bracket is rusted through and the crank hole is elongated then it is time to flash the cash and get a new one.P.S. They only last for 30 years.
