Since the tilt motor is out you will need to manually lift the engine. A unmodified transom bracket may need to be moved not removed. 5hp sears ted williams electric start outboard motor. Owners manual for 7.5hp Ted Williams outboard boat motor. If no improvement in engine preformance then you will have to take it to a dealer to test with computer. Same test to be and fuel system service used of fuel injected engines. Yamaha has a gravity filter under the engine coul. Clean fuel lines replace primer bulb and replace all fuel filters. If you have good compression and good spark fuel is the problem nine times out of ten. Use a spark gap tester all cylinders should jump a half inch gap. All cylinders need to be over 100 lbs and equal each other within 5 lbs.(2) check spark. Without the year model I'm giving you a average numbers. If its fuel injected then its a little harder but not impossible.(1) check compression. 53 Answers SOURCE: is it carbureted or fuel injected? Are your warning horns working? If it iscarbureted then a few easy test can be done to find out.
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