Look at the photos of the breaker cam/advancer assembly and accompanying observations in post#11 at this topic: massive loss of powerviewtopic.php?f=1&t=42949
keep your eyes and ears open and you'll learn something new, everyday.
RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi
'75 GL1000, triking in process: viewtopic.php?f=30&t=39996
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 still committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.