Need to know proper spark gap for plugs NGK BP8H-N-10. Thank you in advance for any help.
H Helly Cadet Joined Feb 4, 2008 Messages 10 Oct 5, 2008 #1 Need to know proper spark gap for plugs NGK BP8H-N-10. Thank you in advance for any help.
Barnacle_Bill Admiral Joined Feb 8, 2004 Messages 6,469 Oct 5, 2008 #2 Re: Plug gap for Mercury 20HP OG683980 .040
H Helly Cadet Joined Feb 4, 2008 Messages 10 Oct 5, 2008 #3 Re: Plug gap for Mercury 20HP OG683980 Thanks for the info. BTW this is not my motor. Just trying to help a friend get back out on the water where we all should be instead of typing in a forum. Anyway thanks again.
Re: Plug gap for Mercury 20HP OG683980 Thanks for the info. BTW this is not my motor. Just trying to help a friend get back out on the water where we all should be instead of typing in a forum. Anyway thanks again.
achris More fish than mountain goat Joined May 19, 2004 Messages 27,468 Oct 5, 2008 #4 Re: Plug gap for Mercury 20HP OG683980 The gap is in the plug number BP8H-N-10 The '10' is the gap in 1/10th of a millimetre... so a -10 is 1.0mm, a -15 is 1.5mm. 1 millimetre is 39.4 thou.
Re: Plug gap for Mercury 20HP OG683980 The gap is in the plug number BP8H-N-10 The '10' is the gap in 1/10th of a millimetre... so a -10 is 1.0mm, a -15 is 1.5mm. 1 millimetre is 39.4 thou.
