Hi all,
I'm back from a too-long hiatus from the bandito!
I've got a really odd question...
My '02 b12s has started sounding like it has tweety birds in the heads!
Seriously, shortly after I switched to full synthetic, I began to notice this strange high-pitched chirpy sound, mostly at mild to moderate throttle, and always a lower speeds, such as when slowing to turn a corner in 2nd or 3rd gear. When I round the corner and come back on the gas a bit, I hear a chirpy sound from the engine until around 3-4k rpms. The sound may be going away or it may just be drowned out by the wind.
The most curious thing about the sound is that I noticed almost the exact same sound from my '92 Nighthawk 750, also after switching to synthetic oil. That squeak was fixed by adding hi-tach oil climbing agent to the synthetic. I'd rather not add anything to mr. bandito if I can help it.
Any ideas?
Thanks to everyone,
Mike Piantanida IV
P.S. - On a possibly related note, I've also noticed a very disturbing *chunk* sound from the engine area during warm-up. The bike idles smoothly, but a little high (of course with the choke on), but then at irregular intervals, I get this horrible-sounding clunk/chunk sound, the tach drops about 50-100 rpms, then the bike resumes idling. It only does it during warm-up for about the first minute or two, and it's much worse at lower choke settings, and the corresponding lower idle speeds. It really sounds like two heavy and important pieces banging together inside a bath of oil, but the bike hasn't exploded yet, so I'm assuming it's something else! Sorry for the novel, but these two problems have kinda got me spooked. :(