1989 Honda FL400R Pilot Service Manual, Page 67Get this manual
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7CYLINDER HEADCYLINDERPISTON SERVICE INFORMATION TROUBLESHOOTING CYLINDER HEAD REMOVAL
BO.000-80.006 (3.14961-3.14984) 80.007 -80.012 (3.14988-3.15008) 80.013-80.018 (3.15012-3.15031)