What is the best spark plug and gap for a 1989 Force 9.9?
D Donna Recruit Thread starter Joined Jul 31, 2002 Messages 2 Aug 1, 2002 #1 What is the best spark plug and gap for a 1989 Force 9.9?
T Trent Captain Joined Nov 17, 2001 Messages 3,333 Aug 1, 2002 #2 Re: What is the best plug for '89 Force 9.9 NGK... BP6HS<br />Gap is .030
