spark plugs 6 hp evinrude 1990

[Marvxyz2]

spark plug Does any one know if B7H10 is good to use on my 1990 6 hp evinrude 1990? I went to the auto parts store and these are the ones they gave me.

 

[Vic.S]

Re: spark plugs 6 hp evinrude 1990

Champion QL77JC4 are the recommended plugs

The NGK equivalent is BZ7HS-10

The Q in the Champion number and the Z in the NGK number denote inductively suppressed plugs. They are what you should be using.

B7HS-10, which I guess is what you meant, is not inductivly suppressed but they are what I have in my 6hp. I notice no difference between those and the original Champion plugs.

 

[Marvxyz2]

Re: spark plugs 6 hp evinrude 1990

Thanks thats a relief, I was concerned that the plugs I have might damage the motor!!