1989 4.3 175hp Thunderbolt Ignition Wiring Help

[bodditrodded]

Greetings,
I hope there isn't a simple link that I'm overlooking to help solve my problem. I have a 1989 18' Sea Ray with a Mercruiser 175hp 4.3L engine and Alpha drive. I removed the engine last month to replace the transom, stringers, foam, and floor (hence the name bodditroddit...that story is for another day) anyway, when I pulled the motor the plug for the ignition module got hung up on a chain and it pulled the wires from the plug. I need to repair the plug but have noticed that there are 7 pins on the module and only 5 wires to plug in. I have looked at manual and online and can not for the life of me figure out which pins are left empty. I would be sooo greatful for some help on repairing the plug. I'm afraid to screw up a $400 module. Thanks!! Also, this is my first post so take it easy on me...
P.S. This is a 7 pin plug mounted to the exhaust riser.

 

[squeak911]

Re: 1989 4.3 175hp Thunderbolt Ignition Wiring Help

What Thunderbolt Ignition do you have? I have a Thunderbolt IV (2f25A v6-14) and While looking at the Module I have 6 pins and 5 Wires. I don't see a label for which one is Pin one, but Looking at the module rotated Where it reads Thunderbolt IV going left to right The wire colors are 1=Grey, 2=White with Green Stripe, 3=Blank (unused), 4=Purple, 5=White with Red Stripe, 6=Black (Ground)

 

[bodditrodded]

Re: 1989 4.3 175hp Thunderbolt Ignition Wiring Help

thanks so much for your help, it could very well be 6 pins on the module. I'm at work right now but I'll be looking at it the second I get home at 3AM.