Yamaha GRIZZLY 660 YFM66FAV Owner's Manual page 406

WARNING
_
Always use a fuse of the specified rating. Nev-
er use any type of material or object in place of
the proper fuse. An improper fuse can cause
damage to the electrical system which could
lead to a fire.
_
CAUTION:
_
To prevent accidental short-circuiting, turn off
the main switch when checking or replacing a
fuse.
_
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