1989 Honda FL400R Pilot Service Manual, Page 84Get this manual
RECOIL STARTERALTERNATORBALANCER Install the balancer drive gear on the crankshaft aligning its inner punch mark with the key-way on the crankshaft and outer punch mark with the punch mark on the driven gear
Install the washer
Hold the balancer drive and driven gears with the gear holder
TOOL: Gear holder
07724-0010100 (Not available in USA)
Tighten the balancer drive gear nut (left hand thread) to the specified torque
TORQUE: 120 N'm (12.0 kgm, 87 ftlbl TOOL: Lock nut wrench, 30 64 mm