1996 Mariner Pro Max 225

I have a 1996 Mariner Pro Max 225 that has been in storage for about 5 years. I recently re-installed the engine on a Ranger Bass boat and started checking things out. I learned that the high pressure fuel pump had failed and replaced it so the engine would run correctly.
The engine now starts and runs great until it is put under a load when the boat is coming out of the hole. Most times the engine will shut down at about 2000-3000 RPM. Sometimes it acts like you are turning the key on and off, which tells me the problem is electrical and not fuel. I learned that if I pump the throttle handle sometimes it will accelerate and run fine all the way to 6000 RPM.
I visually checked the stator and trigger by removing the flywheel. I also checked the trigger out with my ohm meter as outlined in the manual. It tested just as it should. I have ordered a PVA to perform more test, but really believe the trigger must be the bad component.

Does anyone have any insight to this?

Thanks, RWY56

Re: 1996 Mariner Pro Max 225

Have you done anything to tha fuel delivery parts other than tha pump?
ie: all fuel lines, filters, injectors, mech. pump and such. Sitting up for a period of time will cause all of these parts ta take a dump.

If its electric it usually works or it don't. Sometimes an electric part will fail AFTER it heats up but is very rare and mostly with tha coils....................

Re: 1996 Mariner Pro Max 225

I have checked most all of these with the exception of the injectors. I'll read up on those. Thanks for the input........