I HAVE A 77 115HP EVINRUDE, SUDDENLY LAST SAT. THE POWER TILT WOULDN'T RAISE,ONLY LOWER. AFTER CLOSER INSPECTION, I BELIEVE THE ELECTRIC MOTOR IS BAD ON THE PUMP.CAN I REPLACE JUST THE ELECTRIC MOTOR? MAYBE TAKE THE MOTOR OFF AND BRING IT IN TO A ELECTRIC MOTOR REPAIR SHOP?? ALSO IS THERE ANY...