I'm tired of NGK plugs failing. NGK's used to be what I considered a good plug. In the past three years, I've had 4 of them fail. Twice on my motorcycle and twice on the boat.<br />I think the quality department at NGK went down hill the prices are still at a premium however.<br />Does anyone have across for NGK # B8HS-10? This is for a Yamaha 175.