Hi Joe,
The motor is the Quantum, no horsepower listed anywhere though. It is good to know that the coils are a known weakness on these motors. I tried a new spark plug after checking all of the contacts but no luck. It looks like the coil is the most likely culprit.
I have ordered a new coil via the online store here, so I should be good to go.
Just for the record I found the B&S parts list for this motor and found that I had the serial number wrong. It's actually:
12V802-1091-E1
Thanks for the feedback Joe, much appreciated.
Langdon