Give the seafoam a try first before getting into the jets. Also since the bike has been sitting for a while try a couple of tanks of double dose Seafoam. Extra won't hurt it.
A lot of people are amazed at the results.. it's our wonder drug!
Rule of thumb.. try the easy stuff first then work your way up to the harder jobs such as tackling jets and carb rebuilds. You have to do the easier stuff anyway and if it happens to fix the problems, all the better.
Patriot Guard Rider
2000 VN750 Sere (Serendipity)
1990 GL1500 (Ole Blue)
1986 VN750 EVie (project bike, heavy custom)
VROC # 11628 / 25000-H
ARVROC # 12 Coordinator and Crowd Control
OKVROC # 18 (H)
TNVROC # 45 (H)