'98 VMax 600 XTCD Spark Plugs

My '95 VMax 600 twin took BR9ES, as does my current '98 70SX triple. I'd imagine yours takes the same. Honestly, I've run BR8ES in all my Yamahas (1986 Excel III 340, 1980 something Exciter 570, 95 VMX 600, 98 700SX) because the 9s foul too easy. The 700SX is the first sled to not be problematic with fouling plugs, but it only took a few weeks to foul a 9 and I said screw it and went to 8s. Since then, I install fresh plugs every season and never foul them. It's gotten to the point that I forget to bring spares and tools to change them!
 
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