shifting drum replacement

[new75]

Hello all.  On our 1992 Nighthawk 750, I would like to know if there are any short cuts to replacing the shift drum with out having to pull the engine.  Is there a way to get the forks out of the way to slide the drum out?  Or do we have to pull the engine and open the lower end?  The manuel shows it with the engine pulled.
Thanks for the help.
New75

[Re-run]

Unfortunately,  we are still short on people with the later cb bikes.
If you know any, let them know about this site.
The best I can offer is this.
Take a look at the manual and look at  the parts removed. now look carefully at the engine in your frame, can you remove those parts without anything getting in the way? If so, I would suspect you can do it with engine in.