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View Full Version : Mercury Tech Sparkplugs for 300x



off da hook
06-11-2010, 06:07 PM
I have 300x and are running normal plugs for the motor. I have a problem with them going bad every 20-30 hours because of where I run my boat. There are a number of no wake zones and idle areas. What plugs other than champion can I use and what gapping should they be run at.

Thanks
Off Da Hook

Danno
06-14-2010, 02:50 PM
I just got this from NGK...
"Thank you for your interest and long time support of NGK. The NGK equivalent to the Champion spark plug is the BR8HIX stock# 7001 Hope this helps, thank you."

Dan

off da hook
06-14-2010, 08:27 PM
Thanks For the info. Do you know what htey are gapping them at. I was told if you gap them around 3.2-3.3 that will help also. Been talking it over with a number of techs around my area. Order a set of NGK off of sparkplug.com

Danno
06-15-2010, 09:43 AM
No I don't, but I will check with NGK.