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  1. NGK Iridium Spark Plug Gapping

    Ninja 300 Service and Maintenance
    After installing an 8" mini delkevic exhaust at ~6,500 miles my bike seemed to pop quite a bit after letting off the throttle, as expected. Recently it has been doing so more often and I noticed a lack of power in lower rpms. Before changing the air filter I wanted to inspect/ change the spark...