Yamaha 6H4-84301-00-00 PILOT LIGHT ASY 1 is used on these models and components and possibly many more 

 

1984 40ELN OIL PUMP

1984 40ESN OIL PUMP

1984 40LN OIL PUMP

1984 40SN OIL PUMP

1984 50ETLN OIL PUMP (50ETSN 50ETLN)

1984 50ETSN OIL PUMP (50ETSN 50ETLN)

1985 40ELK OIL PUMP

1985 40ESK OIL PUMP

1985 40ETLK OIL PUMP

1985 40LK OIL PUMP

1985 40SK OIL PUMP