Big resistor is 330 ohm, 2 watt (5 watt is recommended, they get hot) - this serves as a pre-heater for the #89 bulbs - disconnect if using LEDs. Small one is 1 ohm, 1/2 watt - if open, nothing will flash.
flashlamp circuit.jpg

Look at the switches carefully. The scoring switch must not come in contact with the activation switch.

L Pop Bumper 2.jpg

R. Pop Score has Wht/Org (pairs) to the non-banded side of the diode.
L. Pop Score has Wht/Red
B. Pop Score has Wht/Yel
Green/Org is the common for all 3.
No wires should be connected to the banded side of the diode.