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Mercury 25 4-Stroke - Fuse Replacement - Electric Start Models

Mercury 25 4-Stroke
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MAINTENANCE
56
ob00375
2. Remove the spark plugs to inspect. Replace spark plug if electrode is worn or the insulator is rough, cracked,
broken, blistered or fouled.
ob00423
3. Set the spark plug gap to specifications.
ob00680
Spark Plug Gap
Spark plug 0.90 mm (0.035 in.)
4. Before installing spark plugs, clean off any dirt on the spark plug seats. Install plugs finger tight, and then
tighten to the specified value.
Description Nm lb. in. lb. ft.
Spark plug 27 20
Fuse Replacement - Electric Start Models
IMPORTANT: Always carry spare SFE 20 AMP fuses.
The electric starting circuit is protected from overload by an SFE 20 AMP fuse. If the fuse is blown, the electric
starter motor will not operate. Try to locate and correct the cause of the overload. If the cause is not found, the
fuse may blow again.
1. 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.

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