I compressed-air-removed the left grip from my 1800's original
bars and lubed it up with rubbing alcohol to push it
onto the new bars. Did the same kind of thing when I
removed the chrome grips from my 1500 and installed
OEM grips. They don't seem loose.
Maybe a different removal process would stretch the grips?
Maybe there was still "Honda glue" down in there that
took over after the alcohol evaporated?
-Mike "only twist the right side

"