Join Date: Feb 2009
Location: Glendale, Arizona, USA
Model: 1987 GL1200 Interstate 290,000 miles
87 octane is not contributing to the problem.
If you have a carburetor issue it is surely related to the rebuild kit you used. Do yourself a favor and start over. Run everything past us before you do/use it.
Did you pull the rack apart and soak, or do a sonic clean, on the individual carbs?
Why ain't we ridin'?