New to forums. Bought Hewescraft Sportsman 180 8 mo. ago. Notice a severe vibration that transfers through the entire hull & makes everything in the boat vibrate (including my teeth). Comes in at 2 mph & goes away at 5 mph. Does this with the main engine (115 HP merc) & the kicker (8 HP Johnson). Cannot imagine both engines having exact same vibration issue at this water speed. Have inspected & tightened all mounting bolts on engines. Vibration is so bad it will cause my electric bow mount troling motor to vibrate up & down 1 full inch when in the transport position. Really bites as this vibration comes in through the full trolling speed range for trout...... any ideas???
