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Tacho Problem

R

RHFG

Donation Time
Have 2 tachos, both work properly on bench test. In the car both read correctly until around 2500rpm and then don't read properly with increased revs. Running Bosch Sports coil with resistor, Mallory twin point with silicon leads and a Bosch Super Inductive branded coil to dizzy lead.

I seem to remember Mallory silcon coil lead would interfere with the tach count. Could my problem be with the Bosch Super Inductive coil lead?

Any thoughts?

cheers Russ
 
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