The Air Injection System on bikes is only for emissions control. Most people want to remove it to either stop the deceleration exhaust popping or simply clean up the engine bay. On my bike it was the latter. For the FJR1300 you can buy expensive blockoff plates or do it this way for under $10 using heater bypass caps available at most auto stores. You need (4) 1/2″ and (1) 5/8 caps.
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