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Tach Not Reading Right

malibu205

New member
"After starting my 470, the ta

"After starting my 470, the tach reads more or less 400 rpm regardless of actual throttle setting. Where does the tach wire connect to? The coil or the points? How can I tell if its the Tach itself?

Thanks for your thoughts..."
 
"It gets input from the grey w

"It gets input from the grey wire on the coil (-) post. Try removing the wire from the tach and see if it changes. If not, it's probably a bad gauge."
 
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