[Blapper]

@embee - Wow! that is good to read. I had ordered a pair of std plugs anyway, so I'll certainly get back and tell you if they are the silver bullet.

@R1ffR4ff - interesting that you mention those parts, the 18 years experienced Suzuki mechanic that ultrasonically cleaned my carbs asked me if I had taken those covers off when he returned the carbs to me. I said "no, why?" and he said he found a ball bearing - like the ones they use to blank off holes - rattling around in one of them (WTF!)