Yamaha F150A - Ignition Coil Failure

[Andyxben]

Hi All

I was unfortunate enough to have one of the ignition coils fail (Yamaha 150 4 stroke) whilst I was out at the weekend.
Fortunately enough we managed to limp the 7miles back to the slip on two cylinders - granted the engine sounded like a bag of spanners, but at least we got there.

Anyway, the coils are easy enough to source and replace (if not the cheapest things in the world), but what I was wondering was:

(1) Has anybody had the same problem with the above engine, ie is this a common fault or was I just unlucky.

(2) Does anybody know when encountering such a failure, whether it is generally part of a cascade failure - ie another electrical sensor / system fails on the engine which then causes the coil to fail (or vise versa)

Many thanks in advance

Andy