spark plug question

[luv2fish13]

i replaced my old champion plugs #QL77JC4, with ngk #BZ7HS-10 , i have a 1987 johnson 175hp, when i look up this engine on ngk"s website it calls for part #BUHXW-1, what's the difference, will it make any difference?

 

[Barnacle_Bill]

Re: spark plug question

I get BZ7HS-10 plugs from the NGK website. http://ngksparkplugs.com/part_finder/watercraft/results.asp?id=743&type=reg

 

[JB]

Re: spark plug question

The Champion QL77JC4 is the correct plug for that engine. It was designed to use the Champions. It will probably make a difference but you might not notice.