<VV> ngk spark plugs/compression ratio / Recommendations?
Matt Nall
patiomatt at aol.com
Thu Mar 3 20:17:10 EST 2016
-----Original Message-----
From: Marc Marcoulides
Would changing the compression ratio change the heat range of the correct plug? What would be recommended for a 140 engine with a CR of 9.25:1?
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Everything can change the need for different heat ranges!! You have to read the plugs after 100 miles...
I recommend;
NGK #BR7HS ITEM # NGK1099, a cooler plug than recommended for 95/110 hp engines...
NGK 1098 BR7HS-10 Standard Plug
SKU: #BR7HS-10
ITEM : # NGK1098
Matt Nall
Charleston, Oregon
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