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Dominick
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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I have a 1987 Johnson Gt 150 that surges off of idle intermittently.

Customer Question

i have a 1987 Johnson Gt 150 that surges off of idle intermittently. Timer base or power packs?
Submitted: 1 year ago.
Category: Boat
Expert:  Tan replied 1 year ago.
Hello. My name is***** could be any one of the ignition components but most likely coil or power pack. Do you have a timing light? We need to look for an ignition misfire at the rpms whenthe engine is acting up .

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