View Single Post
  #3  
Old 04-19-2018, 09:13 PM
Arthur Dalton Arthur Dalton is offline
Registered User
 
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
Simply ohm the tip to electrode to make sure it is not a R plug.

Best F8DC4 replacement for 104 Waste Spark Ign [ DIS] systems is NGK BCP6ES.

Copper core/non resistor.

https://www.summitracing.com/parts/ngk-4930

90% of fouled plugs/skips/misfires on 104 waste spark systems is caused by the Resistor boots on top of the plug, not the plug . Good idea to change these 3 boots whenever changing the plugs on 104's ................
__________________
A Dalton

Last edited by Arthur Dalton; 04-19-2018 at 09:40 PM.
Reply With Quote