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  1. R

    Oem vs aftermarket cool fuel pumps

    Thank you!
  2. R

    Oem vs aftermarket cool fuel pumps

    Anybody tried the aftermarket high or low pressure pumps for a mpi engines? The oem are around 500 aftermarket which look identical are 150 bucks. I usually stick with oem but I can see merc just buying them cheap and putting their label on then.
  3. R

    454 mag mpi oil pressure sensor location

    I am having an issue with the needle on my oil pressure gauge not dropping back down after the rpms are increased but when i shut the boat off and restart it drops back down. I am picking up a new sensor tomorrow. Can anyone give me any information as to where it is located on my engine.its a...
  4. R

    Tach not working 2003 125 2 stroke

    The tach is not working and it was when I winterized it in the fall. It appears to be charging as it shows 13 violts once I increase throttle from neutral.
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    454 mag mpi stalling at startup only when cold weather

    I have a 2000 454 mag MPI. When it is cold out at the initial startup the engine will stall and I will get an alarm. After the second start up the engine will run fine throughout the day.I had the engine scanned and code 14 came up which is engine coolant temperature sensor. That was replaced as...
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