Honda BF115A, BF130A Outboard Motors Shop Manual., Page 63Get this manual
HONDA BF115A13OA
5SPARK PLUGS
1) Remove the engine cover and spark plug caps
2) Clean any dirt from around the spark plug bases3) Use spark plug wrench to remove the spark plugs
4) Visually inspect the spark plugsDiscard the plugs if the insulators are cracked or chipped5) Remove carbon or other deposits with stiff wire brush
11 SPARK PLUG WRENCH
6) Measure the plug gap with wire-type feeler gauge
Spark plug Qap Recommended spark plug
0.7- 0.8 (0.0280.031 in)
ZFR7F (NGK) KJ22CR-L8 (DENSO)
If necessary, adjust the gap by bending each side electrode7) Make sure each sealing washer is in good conditionWith each spark plug sealing washer attached, thread the spark plugs in by hand to seat the sealing washers and prevent crossthreading