Guest 7mc123 Posted January 18, 2007 Share Posted January 18, 2007 my tach has never really worked, i took it out too look at it i replaced some burned out bulbs.i put it back back in i go to start it and the needle jumps all the way across and just stays there till i turn it off. what do you guys think it could be? Quote Link to comment Share on other sites More sharing options...
DeusEx Posted January 18, 2007 Share Posted January 18, 2007 Bad earth? What ignition system are you running? I know with my MSD setup i had to get aftermarket gear to get it to work Quote Link to comment Share on other sites More sharing options...
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