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Which NGK spark plugs and what gap?

belize1334

Well-known member
Joined
Nov 18, 2003
Messages
3,316
Location
Bozeman, MT
For plugs it's either bpr-7es or bpr-6es. Use the 6es if you're in the ~15psi range and the 7es if you're going more like ~20psi as it will dissipate heat better. Most people run their gap on the narrow side of factory spec at about 0.028". You'll give up a tiny bit of fuel economy there but it'll help keep it from blowing out.
 

SmoothCustomer

Well-known member
Joined
Jul 6, 2008
Messages
3,319
Location
Lexington, KY
I searched +"spark plugs" and +"spark plug" and got nothing.
.028 inches seems tiny though according to my feeler gauge /ubbthreads/images/graemlins/dunno.gif I guess it's right though
 
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