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2009 Suzuki Boulevard M109R LE - VZR1800Z Manage Saved BikesCruiser
Cruiser Suzuki2009Boulevard M109R LE - VZR1800Z
It's always ideal to gap it before you install it. Even if it's just to verify that it's gapped properly by the manufacturer, you have to imagine that there are a lot of different types of engines that use this sparkplug, and it's unlikely that they're all gapped the same.