Hi mrbanjo
here http://www.ipdb.org/showpic.pl?id=2784&picno=4966&zoom=1 I see only two coin chutes. Here http://www.ipdb.org/showpic.pl?id=1332&picno=4899&zoom=1 I see only two coin chutes. Here http://www.ipdb.org/showpic.pl?id=1332&picno=24896&zoom=1 I see three coin chutes.
Do You have on Your pin two or three coin chutes ?
In Your post-1 / title You write about right coin chute should give 2 plays for a quarter - AND Your "Used to ..." I read as "The right coin chute" used to "give two plays added to the Replay-Counter".
Do You have these relays in Your pin: V-, Y-, S-, X-, W- ? Do You have the manual with text and maybe drawings to "coin chutes" ?

In the area in the schematics at "F,G,H - 8" is the drawing of 3rd Chute Adjustment --- when You unplug: You should get two plays added to the Replay-Counter. Please write about Your 3rd Chute Adjustment. Greetings Rolf

Hi mrbanjo
I actually asked for unplugging the 3rd Chute Adjustment plug / wire --- well, on position "2 games for a coin" there is no wire soldered-on to the socket - question: In YOUR pin ?

See the JPG: In an running pin - along brown lines there are 5 games coined-up. Along green lines there are 2 games coined up - because the "encircled blue switches" open and suppress the "closing of rosa/pink switch".
But there are two other ways to step-up the Replay-Counter --- along red lines from top of the JPG downwards (making Replays with the Score-Drums) --- along red lines bottom-up (making Replays by Number-Match-Unit).

I want to be 100% sure we are not fooled "getting Replays onto the counter through red lines". See the "encircled yellow Switch on W-Relay" with wire-color-maroon, wire-color-white-slate soldered-on - an Normally-Open-Switch. The list of Relays tell us "W-Relay, 3A, 2B" - means 3 Normally-Open-Switches, 2 Normally-Closed-Switches. Inspect the mentioned Normally-Open-Switch - then sneak-in a stripe of paper into the switch - in-between the contact-point of the switchblades --- make this switch open all the time. Then try coining-up - You should get Zero added games to the Replay-Counter - what do You get ? Greetings Rolf

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