cm450 no spark

  1. LongDistanceRider

    Ignition Diagnosis for 1978-86 CB/CM 400/450 Manual Trans

    Ignition Diagnosis for CB/CM 400/450 and CB450SC manual trans 1978-1986 These tests are used to check the CDI system. There are no valid tests for the CDI unit at this time so this is an elimination process. If all these tests are good then the CDI is at fault. Before replacing a CDI all these...
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