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Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 3312
Experience:  US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
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My E-Tec 90 quit running full power, Cranks but no fire,

Customer Question

My E-Tec 90 quit running full power
JA: Sometimes things that you think will be really complicated end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so the Marine Mechanic can help you best.
Customer: Cranks but no fire
JA: Is there anything else important you think the Marine Mechanic should know?
Customer: Checked all the fuses, everything seems to work but the motor
Submitted: 3 months ago.
Category: Boat
Expert:  Charles replied 3 months ago.

Hello, my name is***** will assist you.

Test for spark on the engine using an adjustable gap spark tool. Make sure that it will jump a gap of 7/16". Make sure that the fuel pressure going to the injectors is close to 40 PSI. If it is not, you will need to open and clean the electric fuel pump. Run a compression test on the engine as well. Make sure that all cylinders are over 90 PSI and with-in 15% of each other.

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