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1989 mer v6 150 hp question ?

WKEGGENHOFF

New member
Where does the tach signal come from ? Stator or switch boxes /

reason I ask had issue with no spark # 5 cylinder.

1st switched stator didnt fix spark issue

replaced both switch boxes with aftermarket ones from ebay

My tach reads like 7000 rpm now where before with dead cylinder was running 6200

thanks
 
That does make sense that the motor will now run at higher RPM with 6 cylinders contributing.-----The tachometer works off the stator pulses I believe.----Need to go to higher pitch prop to bring revs down.------What boat and what pitch is the prop.
 
Sorry my bad. When engine was running on all 6 cylinders it was at 6200 trimmed out, 21" laser 2 on a 17' boat. Ran 6200 rpm for over 10 years

unitl I changed trigger coil (not stator as I previously stated) and 2 switch boxes and trigger

Sorry for the confusion
 
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