Welcome to the Vulcan madness Dr. Pete. I`ll take your question here, although it could go to the carbs and fuel forum too.
It is unclear in your post if you bought the bike in 2003 when you moved to MD, or if you just bought it with a cold starting issue recently. I will assume the latter.
Hard starting, cold or hot, has been a common problem with the vn750. It likes a fully charged battery. If you still have a conventional wet cell battery with caps on top to add distilled water, change it out for a Maintenance Free- AGM battery (MF-AGM
). These are sometimes mistakenly called "sealed", but they are really Valve Regulated Lead Acid (VRLA) technology.
Here is a link to a good one.
Combined with changing out your current spark plugs for a set of NGK Iridium DPR9EIX-7 plugs
will probably cure the cold starting problem. If not try using 1/2 choke. We had a thread during the past month or so addressing your cold starting problem and several members mentioned finessing the choke to get the engine started in cold temps.
If that doesn`t cure your problem get back to us and answer the following questions.
Has the bike been sitting for an extended time without being ridden? How long?
How many miles on the bike?
Has anything been modified to your knowledge?
How many previous owners?
How does it run once you get it started? Smooth? Rough? Flooding/rich with black exhaust? Lean with backfiring?
You will probably get a few more answers here, even during this slow holiday season. Hope you enjoy getting back on two wheels. If you haven`t ridden for 35-40 years you may want to consider taking the MSF BRC just to get reaquainted with a bike and the differences from your old BSA.