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Old 03-23-2004, 09:21 AM
Arthur Dalton Arthur Dalton is offline
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Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
104 ignition system has the resistors built into the plug connector/boot, so... adding a resistor plug only taxes the coil.
The coils on these sytems fire 2 plugs , in series. [waste spark system]. Adding resistor plugs can be a burden on the coil as now the system has to travel through 4 resistors . [ 2 connectors/2 resistor plugs.]
The wasted spark has little draw off the system b/c the piston is not on the compression stroke, but the resistance of the plug does , regardless of which stroke you are on .
This is also something to consider when using larger plug gap than spec .. [ the 2 plug/per coil series circuit means the spark has to jump the total gap of BOTH it is double the distance/gap..]

F8DC4 Bosch Super is the called for non-resistor replacement .

Last edited by Arthur Dalton; 03-23-2004 at 09:33 AM.
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