Honda BF200A Owner's Manual page 71

9. Install the spark plugs carefully, by
hand, to avoid cross-threading.
10. After each spark plug seats,
tighten with the spark plug
wrench supplied in the tool kit to
compress the sealing washer.
If reinstalling used spark plugs,
tighten 1/8 – 1/4 turn after the
spark plugs seat.
If installing new spark plugs,
tighten 1/2 turn after the spark
plugs seat.
Loose spark plugs can overheat
and damage the engine.
Overtightening the spark plugs
can damage the threads in the
cylinder head.
11. Install the ignition coil. Reinstall
the bolt.
12. Push the wire connector onto the
ignition coil. Make sure it locks in
place.
13. Repeat this procedure for the
other five spark plugs.
14. Reinstall the covers. When 
reinstalling the covers, make sure
not to jam the wire harnesses
between the covers and engine
case.
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SERVICING YOUR OUTBOARD MOTOR
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