3x NGK DPR8EA-9 4929 Standard Spark Plugs For TRIUMPH T509 Speed Triple 96>10/98

Users should always wind down their torque-wrench to the minimum scalesetting and never all the way down after each use. The result can be an inaccurate torque reading. Over tightening can also compromise the plug’s internal gas seal or even cause a hairline fracture to the insulator.

eBay