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745 no start, with no spark at the plugs 700

posted by  rona on  Tue May 5 12:11 CST 2020
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1990 745 Rex Regina system.
Symptom: i was stopped at the light and the engine stopped running. will not restart.
things i checked:
no spark at plugs
fuel pump humms for a second or two when key put into on position.
brand new RSR
the tach ticks while cranking the engine (this means a good CPS ?)
put a new set of plug wires on.
cap and rotor are less than a year old.
connected a test light on wire coming from the coil - while cranking the engine the light will flash intermittently.

i am stumped as to why there is no spark at the plugs.
what can i check/replace next?

thanks for any advice.






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