"HOPE SOMEONE HAS A SOLUTION.5
"HOPE SOMEONE HAS A SOLUTION.5.7 LTR MERCRUISER WITH THUNDERBOLT IV IGNITION MODULE
hAVE REPLACED ALL ELECTRICS, PLUGS TO ELECTRONIC MODULE. CARBURATOR FULLY SERVICED.
MOTOR DOES NOT WANT TO STAY IN TIME. REVS GO UP AND DOWN AND ALSO SOUNDS AS IF IT IS...