Hey I just had a revelation. When I turn the ignition to the ON position (motor not running) the tach perks up to 3000 and remains there. When I turn the motor over it jumps to about 4250 at idle. That would put the idle at about 1250 or 1200 RPM. So could I just turn on the ignition and when the tach jumps to 3000 I could just re-adjust the needle to rest at zero?
