triggers dont normally give the problems that stators do. I'd leave it alone. If you feel like spending some extra money, pick up fresh switch boxes, they seem to follow stators going out. Old switch boxes can cause irregular time events that can lead to engine damage, Theres a capacitor in the bias circut that stabilizes the voltage for consistant timing. the Idle stabilizer on some models varies the voltage in the capacitor to change the actual timing. I've got a good friend that has forgot more than I will ever know about mercurys. He will not rebuild an engine unless it gets new switch boxes(always replace them as a pair). he also recomends replacing them if they are more than 10 years old as a preventative measure.
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