When your motorcycle is not running at its peak condition and you have exhausted all of the basic requirements, remember that engines require ignition systems that carry higher voltages these days, and these parts can fail. When your motorcycle has many miles and years of use, the systems have to be recognized from an ohmmeter level, not just a visual inspection. I recently had a set of 4 cylinder coils that when the engine came up to operating temperature, the engine would lose power and stall the cylinder. When tested with the multimeter, the coils were out of specification until…