The CDI or HKZ as it is known in Germany, is the high-voltage condenser ignition control unit. Aging CDI / HKZ units lead to deterioration of performance with time. A failing unit's symptoms incl...
Distributor caps are often overlooked as the source of ignition issues. If yours is failing or cracked, you can experience shaking at idle, poor starting in the cold, stalling and backfiring. Be ...