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Manuals
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Mercury Manuals
Outboard Motor
300R HD CMS Mechanical
Operation and maintenance manual
Mercury 300R HD CMS Mechanical Operation And Maintenance Manual page 52
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Troubleshooting
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2. Check the engine oil level. Refer to Fuel and Oil ‑ Checking and Adding
Engine Oil.
a
a -
Service access door
b -
Oil fill cap
c -
Dipstick
3. Ensure that the cooling water intake is submerged.
OPERATION
b
c
42
63305
66310
eng
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Table of Contents
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