bloodintheboat
New member
my brother fouled both spark plugs on my 1980 merc 110 9.8hp this past memorial weekend.
i took the plugs to a marine shop. they looked the spark plugs i brought in and it came out to be ngk b7hs-10.
i came home and looked online and for my year its a ngk b9hs-10.
would it be ok to run the b7hs-10 rather than the b9hs-10?
what is the difference as well because online specs seem to show no difference.
i took the plugs to a marine shop. they looked the spark plugs i brought in and it came out to be ngk b7hs-10.
i came home and looked online and for my year its a ngk b9hs-10.
would it be ok to run the b7hs-10 rather than the b9hs-10?
what is the difference as well because online specs seem to show no difference.