AC Compressor cycles

[Delorean17@xxxx]

Hi,
Before I go to Memphis I want to make sure I am not going to fry my AC 
compressor on the way. I had the system vacuumed out and charged with R12 
last summer and it has been blowing cold air ever since but I think it may be 
cycling a bit much.
I have a light hooked up that shows when the AC compressor comes on. 
When driving 45+MPH the AC compressor comes on for 2 seconds, then shuts off 
for 3-4 seconds then comes on for 2 seconds again, and over and over. 
Doesn't that seems a little excessive? How can it be fixed? Can this be 
adjusted?

Thank you

David
6286