Its hard to tell with your descriptions but my engine only engine noise ive ever experienced was because of a worn out cam chain tensioner. wasnt keeping the chain tight enough so there was a noise that incresased with rpm speed. it was more of a tick and the motor ran rough also. i had 38,000 miles on my cbr600rr so i thought that io needed to re size my shims so i took the cylinder head off and everything else on top of it just to measure all valve clearences within spec...point being eliminate simpler and easier things to verify before tearing it apart completly. hope this helps....
SOURCE: honda vt 750 backfires
First check all spark plugs(NGK are a good brand) / HT leads / plug caps. Secondly, Check that the valves are properly gapped - if they are tight they will leak the cylinder gases past the valve(s) and this will cause a misfire. A losse or leaking manifold will also. if you have aftermarket pipes then it may need to be rejetted to suit. If you got them at a dealer they will know the right jets. I couldnt find an english manual but here is a german on that may help with diagrams etc... Good luck. Rate if good.
Thanks
http://www.carlsalter.com/download.asp?fileid=072111110100097095086084055053048095067045067050086095039057055095040103101114109097110041046112100102
SOURCE: sounds like timing chain, higher pitch gear noise.
common on high mileage bikes, chain tend to stretch over years and get very sloppy. you might also want to check the gear making sure is not worn, worn gear will chew your new chain up quickly. check your timing belt also, it good idea to also replace.
SOURCE: while driving I shift gears to come to a stop and
Gold Wings do not have a timing chain they have timing belts and they are at the front of the engine and run from the crank shaft to the heads for the cams. If there is a sound coming from the shifter area I would say it's coming from the drive shaft. You need to check the shaft lube level and trans fluid level. It aslo cound leed to damage if the lube levels or low.
SOURCE: I have a 1980 Honda cx 500.
Perhaps you got one of the new Honda 1980 Tech where they are using a Turbo to gain HP(Kw). It is a white elephant but a technology experiment. Bike too heavy for turbo, not very agile. Google CX500 and read it's review in NZ Bikers magazine 2010 March edition.
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