Replacing switch to 2 speed Porter Cable Tiger Saw?

I have an older Model 627 Tiger Saw by Porter Cable. Bought replacement switch for it but the old switch came out in peices and I don't know how to wire it up. Checked the new switch for operation but don't know how to wire to motor. 5 wires to the motor, two go to brushes others don't know. Colors look like red, yellow, yellow, Black, and brown. Then there's the black and white going to the cord. Any help or wiring diagram greatly appreciated!!