Re: Strange popping sound at speed
Put it up on the center stand and grab the rear wheel at 9 and 3 and also at 12 and 6 and give it a good shake to see if there is any detectable play. It might be the final drive crown bearing coming apart. Play detected there can also be the pivot bearings being worn but those don't normally cause a popping noise.
If you detect any play, pull the FD drain plug and look for any larger flakes or chunks of metal on the magnet.
If you see these signs, contact Dave Selvig aka Saddleman as he is the forum premiere rebuilder of final drives assuming you are in the states. You profile does not indicate a location.
Sugar Hill, GA
2001 K1200LTI – Champagne (current ride) Lazy Susan
1998 R1100RT – Never should have sold it
1974 Yamaha TX 750 Twin. Omni Phase Balanced
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