if statement and operator

if statement and operator

Good day,
any idea what I am doing wrong with this bit of script?
want to look if line one is true then if it is I want the field Adjusted Input to equal the field Install Torque Value by 6.1 and add that value to the Adjusted Input field. 

  1. if ( Installation_Type == "TMRS" ) 
    {
    input.Adjusted_Input == input.Install_Torque_Value * 6.1;
    }