Spark plugs

[rigidrdr65]

"help! just got ahold of a 197

"help! just got ahold of a 1975 mercury 500,thunderbolt ing, what kind of plugs other than {L76V} can i run and what gap? thanks!"

 

[outboard_doctor]

They only had l76v plugs for t

They only had l76v plugs for that engine