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hotrodcbx · 12-03-2015, 03:15 PM

I didn't want to admit it, but after seeing Tubmans response to using Mercury surface gap plugs, I too have to admit doing the same thing. The plugs were spares out of a 2000 Mercury 90HP two stroke. The engine is 286", B&M supercharger with MSD ignition. It ran great on these plugs but I got concerned about long term effects and removed them for Autolite 216s.

12-03-2015, 03:15 PM	#12
hotrodcbx Senior Member Join Date: Jul 2010 Posts: 136	Re: Spark plugs I didn't want to admit it, but after seeing Tubmans response to using Mercury surface gap plugs, I too have to admit doing the same thing. The plugs were spares out of a 2000 Mercury 90HP two stroke. The engine is 286", B&M supercharger with MSD ignition. It ran great on these plugs but I got concerned about long term effects and removed them for Autolite 216s.