75 Mercury Black Max bogs down

by mark horan
(lewes de.)

The motor runs great out of the gate for about half an hour then when I go to throttle down it boggs down, you can tell that it really wants to run when I throttle back up it just seems like its loading up if I take it back to neutral and jam it into full throttle every 2 or 3 times it will take off and rund great for a few minutes then when I throttle back down it starts to bog down again I have changed both fuel filters and the plugs and has Startron in the tank.

Again, it will run great high and low end for about 30-40 minutes then the problem starts.

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Mercury Forum.