CDI mods-GPZ600R CDI fits the GT550.

Digging through the garage today and found a couple of old CDIs lying around that I had forgotten about- GPZ600R and GPZ400R. Thought to myself 'they look just like the GT550 CDI' and sure enough both plug in and run.
I have had an intermittent miss in the GT that I have been struggling to find. Suspecting the CDI I have swapped it with the GPZ600R one. Seems to run harder. I'm guessing the rev limit would be much higher too- revved the GT well into redline without cutting out. I haven't ridden the GT enough to see if it is the CDI yet. A fuel line split while I was out today- maybe it was that too. Lucky I carry some fuel line in the panniers.
What concerns me is that the GPZ CDI would have a different advance curve to the GT one, and the rev limiter would be much higher too. Anyone got any ideas on this one, or opinions? TIA!
I have had an intermittent miss in the GT that I have been struggling to find. Suspecting the CDI I have swapped it with the GPZ600R one. Seems to run harder. I'm guessing the rev limit would be much higher too- revved the GT well into redline without cutting out. I haven't ridden the GT enough to see if it is the CDI yet. A fuel line split while I was out today- maybe it was that too. Lucky I carry some fuel line in the panniers.

What concerns me is that the GPZ CDI would have a different advance curve to the GT one, and the rev limiter would be much higher too. Anyone got any ideas on this one, or opinions? TIA!
