Join Date: Aug 2009
Location: Silver Spring, Maryland, USA
Make: BSA Royal Star
Just a Tip - Ref: GL1500s
The GL1500's are becoming aged and there will probably be more "starting" and "ignition" circuit issues in the future. There has already been quite a few...!
The voltage path from the battery to the ignition/cruise relay is completely different on the 1988 - 1992 compared to the 1993 - 2000 year bikes.
The voltage path (and ground path) from the starter relay A through the starter relay B to the starter motor is also completely different on the above years.
It is very important to use the appropriate Honda Service Manual "electrical schematics" when diagnosing problems (if you want good results).