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10. MAINTENANCE<br />
7. Thread the plugs in by hand to pre-<br />
vent cross threading.<br />
8. After the spark plugs are seated,<br />
tighten with a spark plug wrench to<br />
compress the washers.<br />
If installing new spark plugs, tighten i/2<br />
turn after the spark plugs seat to com-<br />
press the washers. If reinstalling used<br />
spark plugs, tighten l/8- l/4 turn after<br />
the spark plugs seat to compress the<br />
washers.<br />
m The spark plugs must be<br />
securely tightened. Aloose spark<br />
plug can become very hot and may<br />
cause engine damage.<br />
Overtightening the spark plugs can<br />
damage the threads.<br />
Battery (not included)<br />
Minimum requirements<br />
12V-70AH marine cranking battery.<br />
Maintenance interval<br />
Refer to the maintenance schedule<br />
page 78 and your battery manufac-<br />
turer’s instructions for servicing or<br />
recharging information.<br />
Check the battery cables to be sure<br />
they are securely connected to the bat-<br />
tery terminals. lighten if necessary.<br />
If the battery terminals are corroded or<br />
if recharging is necessary, remove the<br />
battery from the boat to clean or<br />
recharge.