Mercury 8/9.9 BigFoot, Manual, Page: 117 / 153

MAINTENANCE
eng
105
The electric starting circuit is protected from overload by a 20
amp fuse. If the fuse is blown, try to locate and correct the cause
of the overload. If the cause is not found, the fuse may blow
again.
a - Spare fuse
b - Circuit protecting fuse
Open the fuse holder and look at the silver colored band inside
the fuse. If band is broken, replace the fuse. Replace fuse with a
new fuse with the same rating.
Identifying a blown
fuse
a - Good fuse
b - Blown fuse
Spark Plug Inspection and Replacement
!
WARNING
Damaged spark plug boots may emit sparks which can ignite
fuel vapors under the engine cowl, resulting in serious injury or
death from a fire or explosion. To avoid damaging the spark
plug boots, do not use any sharp object or metal tool to remove
the spark plug boots.
a
b
28618
a
b
28619