Protecting Internal Engine Components; Gearcase; Positioning Outboard For Storage; Battery Storage - Mercury 8 Bigfoot 4-Stroke User Manual

Protecting Internal Engine Components

• Remove the spark plugs and inject a small amount of engine oil inside of each cylinder.
• Rotate the flywheel manually several times to distribute the oil in the cylinders. Reinstall spark plugs.
• Change the engine oil.

Gearcase

• Drain and refill the gearcase lubricant (refer to Maintenance ‑ Gearcase Lubrication).

Positioning Outboard For Storage

If outboard is stored tilted up in freezing temperature, trapped cooling water or rain water that may have entered
the propeller exhaust outlet in the gearcase could freeze and cause damage to the outboard.
• To prevent problems which can be caused by oil entering the cylinders from the sump, store the outboard
only in one of the four positions shown.
a - Upright position
b - Tiller handle down
• Never carry, store or transport the outboard in the position shown. Engine damage could result from oil
draining out of the crankcase.

Battery Storage

• Follow the battery manufacturer's instructions for storage and recharging.
• Remove the battery from the boat and check water level. Recharge if necessary.
• Store the battery in a cool, dry place.
STORAGE
CAUTION
!
a
c
b
d
c - Front side up
d - Front side down
10378
69
10375