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Boat Repair/89 mariner 150hp outboard

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Question
motors not getting any spark to number 3 and number 6 cylinders does start and idle but wont get on a plane is this problem the switch box or the power pack?

Answer
you need to check spark on all cylinders.   being no spak to 3 and 6  it sounds like the sensor coil under the flywheel has gone bad....
Peak voltage meter will test voltage at cranking speed.....sensor cils should only be about 5  volts when cranking...that engine uses the sensor coil on each revolution..

Boat Repair

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Everett Peacock

Expertise

Marine repair questions

Experience

35 years experience boatmansbargains.com

Organizations
Taught Marine electronics at NOVA CC IN ALEXANDRIA VA

Education/Credentials
certified, Yamaha outboards,yamaha stern drives, Mercury outboard, Mercruiser, Evinrude. Johnson, Mariner, suzuki, Volvo Penta, Honda,

Awards and Honors
service exelence award ( yamaha)

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