MERCURY 115 THUNDERBOLT RUNS POOR

[SLONG]

120 IN EACH 6 CYL GOOD SPARK IN ALL WHEN OUT OF WATER IDLES GOOD BUT WHEN YOU GO TO TAKE OFF SOUND LIKE IT IS RUNNING ON 3 CYL BUT AT TIMES IT SOUNDS LIKE IT ALMOST WANTS TO KICK IN. I REPLACED 6 COILS AND SWITCH BOX(BOTH)COULD THIS BE A FUEL PROBLEM SPARK PLUGS ARE NOT WET

 

[SLONG]

Re: MERCURY 115 THUNDERBOLT RUNS POOR

A TYPE 3 IGNITION SYSYEM

 

[andrewkafp]

Re: MERCURY 115 THUNDERBOLT RUNS POOR

Does it have a trigger ? Check the wires going from trigger to switchbox for good connection or corrosion. This "breaking down under load" problem occurred on my 50hp merc and I found 1 corroded wire and 1 loose connection. Fixed the wires.. and the problem.

 

[SLONG]

Re: MERCURY 115 THUNDERBOLT RUNS POOR

YES IT DOSE HAVE A TRIGGER AND HAVE CHECKED ALL<br />MAYBE THE TRIGGER IT SELF IS BAD