Honda EM50is Owner's Manual page 51

5.FUSE REPLACEMENT
If the fuse is blown, the starter motor won't operate.
In the event of fuse failure, locate the cause of failure and repair it
before you continue operation. If the fuse continues to fail, discontinue
generator use and consult an authorized Honda generator dealer.
1.Turn the engine switch to the OFF position and remove the key before
checking or replacing the fuse.
2.Lift the handle upward. The lock levers will lock and secure the 
handle into place.
3.Loosen the cover screw and remove the maintenance cover.
HANDLE
MAINTENANCE COVER
HANDLE LEVER
COVER SCREW
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