Hey the4horse,
Looking at the schematic Flipper power starts from the transformer (B-Y-W wire) ,15 amp fuse to the reset relay (Black wire),Reset relay to the Game over relay (Blu-Y-W wire),Game over relay to flippers (Red wire). (see it in the schematic below)

Most likely the Reset relay to the G.o. relay out to the flippers (contacts,broken solder joint...)

http://mirror2.ipdb.org/files/1388/Williams_1971_Klondike_Schematic_Diagram_continuous.pdf <<Follow wires along the top of schematic and see where the culprit starts at.

Make sure those relays contacts are clean and the make/break are ok? Clean the outhole Switch and check for closing.
Manually press the outhole relay and see if the ball kick out activates.

Thats also possible looking at the stacks.>> Clean contacts and function M&B

I vote g.o. relay. Make sure the switches are clean and making.

If voltage is present for the pop bumpers to work then check for voltage at the flipper coils red wire termination point as there should be voltage there as well.
The pop bumpers and the flippers are on the same 15amp circuit line.
What do you get for a voltage reading?

I'm getting voltage of 2.1 to the left flipper & 1.9 to the right...that's on the 200 ohm setting.

The outhole doesn't activate the ball kickout, it moves the post between the flippers though. The outhole relay doesn't activate on startup. The score motor doesn't make it's full rotation.

Set your meter to voltage ^^ not ohms/resistance and you should get around 28 volts here in the States,not sure for Australia.

The outhole relay is energized from the outhole switch thru the end of stroke switch on the ball count unit. < check function and contacts.